GEOPHYSICS, VOL. 50, NO. 12 (DECEMBER 1985); P. 2299-2408, 186 FIGS.
History of geophysical technology through advertisements in GEOPHYSICS
Robert E. Sheriff*
Exploration geophysics has been largely a free-enterprise another photograph of the Sonograph Analyzer (Figure 7). venture and new developments have been "sold" through ad Rieber had two facing ads (the first such instance) in the vertisements in the journal GEOPHYSICS. Thus, a review of March 1937 issue (Figures 8a and 8b). Figure 8a announced advertisements provides an eclectic history of geophysics. the opening of a Houston office because "the Sonograph can The following is the view obtained from advertisements be extremely helpful in outlining complex structural con alone. The dates cited are usually when ads for innovations ditions occurring in the Gulf Coast region, due to fauIting and first appeared. New features often had been applied earlier, irregularities and sedimentation," and Figure 8b promised before they were advertised. that "structures which produced 'no reflections' by older methods are made to reveal themselves." THE EARLY YEARS: 1936-1945 "This new torsion balance is the smallest, lightest and fastest instrument on the market," an October 1936 ad (Figure Big advertisers in the early days were mainly suppliers of 9) touted; "fastest" meant several hours to a reading. DuPont expendables and equipment. I1Iustrations in volume 1 of GEO offered a free book on explosives and e1ectric blasting caps, PHYSICS, then published by the Society of Petroleum Geo including "precautions attending the use of explosives" physicists, included a Ford truck (Figure 1) that could be (Figure 10). Askania promoted "Multiple Methods of Pros driven "through hub-deep mud, swamps, rice fields, or over pecting: recent advances in the seismie method of subsurface the roughest rock-covered hills;" an Askania magnetometer prospecting have been matched by equal improvements in the (Figure 2) to "reduce the cost of checking an area with other gravity and magnetic methods,' illustrated by a photo of a geophysical instruments by eliminating uninteresting areas;" truck bogged down in mud (Figure 11). and a Monroe calculator (Figure 3) with which geophysicists A January 1938 ad showed a six-trace, string-galvanometer spent many hours cranking out their calculations by hand. record (Figure 12) of excellent quality and amplitude balance. There were no advertisements in the first issue of volume 1, In the October 1939 journal a "typical Western Geophysical but the second, the June 1936 issue, had 27 pages of ads, Company seismograph record shows reflections recorded including a one-page Professional Directory (Figure 4) con from horizons below 30,000 ft " (Figure 13). The 13-channel taining a total of six ads and an ad promoting Seismograph record indicates how geophysicists picked and marked seismie Service Corporaticn's 594 months of experience and their six records prior to the advent of record sections 20-25 years channel recording system (Figure 5). Geophysical Service Inc., later: refiection times were posted to the right (e.g., 5.5 s), dip Schlumberger Weil Surveying Corp., Independent Exploration moveout in the middle, and depth and reflection grades to the Co., and Petty Geophysical Engineering Co. also advertised, left; the reflections were graded fair to very poor (f to vp +). along with several other companies whose names are no Portable seismie equipment meant that "No unit weighs longer around. over 100 pounds" (Figure 14). The same ad told of a portable The June 1936 issue also advertised controlled directional rotary drill "which disassembles into units weighing less than selectivity with an automatic analyzer (Figure 6) for "rnapping 250 Ibs. each, for portage on mules or camels." steeply folded and faulted structures where earlier methods The first gravimeter ad (Figure 15), in 1939, c1aimed 0.1 have yielded confused or inaccurate results." Rieber had the mGal accuracy, 4-5 minutes for a measurement, linear distri first reproducible recording and playback system, using bution over a 1 600 mGal range, and weight of 125 pounds. variable-density recording on film. He ingeniously applied There were also ads for magnetometers, weil-log services, di movie-industry sound-recording experience to seismie explora rectional surveys in boreholes, and aerial photography. Many tion. While his efforts were not very successful because the ads promoted winches with photos of extricating vehicles from supporting technology was not yet in place, this is one of bad situations, while some ads promoted photographic re many instances of geophysical advances based on technology cording paper, explosives, and other supplies. from an unrelated industry. The following January there was Lane Wells ran a two-page ad in October 1938. A Com-
*Department ofGeosciences, University ofHouston, Houston, TX 77004. 2299
Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 2300 SherlH pagnie Générale de Géophysique and Schlumberger two-page Refraction Recording obtained on the Edwards Plateau of ad in July 1939 (Figure 16) emphasized the various geophysi both Permian and Ordovician beds" is shown in Figure 38. cal tools available: "seismograph, gravimeter, torsion balance, Another ad (Figure 39) talked about refraction success in magnetometer, electrical resistivity method" while the facing southern Florida in mapping "two limestones having different page made the same point with maps and six-trace seismie ve!ocities and another geological horizon with a very much records. higher velocity." The first advertisement on a back cover (Figure 17) was run This period included a number of ads for ground magne by Subterrex in July 1938 for "electrical transient surveys" tometers (such as Figure 40) and magnetic field surveys and "analyses of soils and gas seeps for hydrocarbons and (Figure 41). A rather modest half-page ad in October 1946 associated significant constituents." Another Subterrex ad announced a major new development, "commercial surveys (Figure 18)showed an ethane halo around the Eureka oil field, after 1 January 1947 with geophysics' newest tool, the Air based on 109 soil samples and a survey cost of less than borne Magnetometer," the Gulf fluxgate device which had $1 500. Subterrex ads occupied the back covers until 1943 been developed during the war. This ad was reproduced two when GSI took over that space. Ads on the inside front and issues later (Figure 42) along with the proclamation of its back covers also first appeared in July 1938. GEOPHYSICS acceptance and success. A magnetic profile (Figure 43) ex began running ads before as weIl as after the technical papers plained the use of "pips" to synchronize magnetic measure in the March 1939issue. ments with ground photos, Shoran, and altimeter; however, Some ads involved a bit of whimsy, such as the ad (Figure the comment relating magnetic highs to oil suggests that mag 19) for casing that "compares in price with reworked junk netic interpretation still had a way to go. pipe." Winch ads (Figure 20) showed heavy going through Ads continued to show applications of the technology de deep mud. The "modern methods" of January 1940 (Figure veloped in World War 11 and expansions in the range of 21)included burying an obviously heavy geophone. An adver geophysica! methods available. Offshore exploration showed tisement for a 24-trace seismograph appeared in the July 1941 up in ads for radar (Figure 44), supersonic depth recorders issue (Figure 22), although 24-channel recording did not (Figure 45) for "a sounding every 3 1/2 feet ... at a speed of 10 become common until several years after World War 11. West knots," Sonobuoy position plotting (Figure 46), and the ern Geophysical Co. soon advertised a 24-trace system (Figure underwater gravity meter (Figure 47). Radioactivity surveying 23) to "provide from 2 to 4 complete records per shot, ob was mainly by ana!ysis of samples (Figure 48). Radioactivity tained simultaneously with different filters." borehole logging (Figure 49) permitted behind-casing analysis. Some early ads emphasized log interpretation (Figure 24). A camera (Figure 50) made "permanent, impersonal, photo One (Figure 25) annoiinced "Final results can be no better graphic records of survey data" that "reduces the element of than the interpretation methods employed" and showed spe human error from field operations." cial drafting equipment and computation charts. Note that Many ads emphasized the need for experience in interpreta Figures 23 and 25 give the name of the president of the com tion, much of which was done by geophysical contractors. A pany. Jakosky's Exploration Geophysics cost $8.00 (Figure 26) Century ad (Figure 51) showed the use of a plotting arm to and Nettleton's Geophysical Prospecting for Oil cost $5.00 accommodate a !inear increase of velocity with depth. The (Figure 27, top). geophysicist's job then was often one of finding reflections on World War 11 began to affect ad layouts in 1943(Figures 28 individua! paper records and hand plotting these on cross and 29) and ads promoted the contribution of geophysics to sections; there was usually little time left for deep geologie the war effort (Figures 30 and 31). An April 1944 ad (Figure thinking. The possibility of mistaking a change in line direc 32) claimed increasing success by stating, "The Targets are 15 tion for a reversal of dip was the feature of one ad (Figure 52). times smaller, But we're hitting them twice as often!" Another talked about curved-path weathering corrections (Figure 53) for use "when the near-surface veloeities are not constant, but gradually increase with depth." POST-WAR DEVELOPMENTS: 1945--1950 Seismie instrument developments continued. An eight pound, dual-coil seismometer (Figure 54) reduced ac pickup. Post-war ads often featured equipment of lighter weight Phone frequencies increased (28 Hz in this ad) from around 8 such as the Schmidt-type magnetic balance with 10 gammas Hz in the previous decade. Natura! frequencies would go sensitivity (Figure 33) and the North American gravity meter down again in the 1960s, but they seem to be increasing again weighing only 28 pounds (45 pounds with backpack and bat in the 1980s. tery) (Figure 34). Seismieinstrument characteristics (Figure 35) Instrument portability increased; a "12-trace unit weights were first featured in an October 1945 eight-page catalog that only 350 pounds and is easily portable by 10 men" (Figure appeared in the advertisement section; this catalog marked 55). Filtering and mixing (Figure 56, top) were the major seis the first appearance of color ads in GEOPHYSICS. Electro mie instrurnental features promoted. Most seismie records magnetically damped geophones now had a weight of only shown in ads up to 1950 indicated 12-channel recording al 5-7 pounds which made it possib!e to use "one, two or three though 18-channel and 24-channel usage was growing. of these seismometers ... for each of the 24 amplifiers" (Figure In 1949,the Cumulative Index of GEOPHYSICS cost members 36). However, 24-channe! systems did not become common one dollar (Figure 56, bottom) and members were invited to until about 1950. design a crest for the Society (Figure 57). The problem area of the Edwards Plateau of West Texas The pace of miniaturization is illustrated by comparing sm had been featured in ads since 1942(Figure 37) without speci portable seismograph systems advertised in the Apri! 1949 fying that refraction was playing a major role. The post-war (Figure 58) and April 1950(Figure 59) issues. A package of six period brought a revival of refraction methods; a "typical 1949 amplifiers weighed 55 pounds, while a package of twelve
Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 Geophysical Technology Hlstory 2301 1950 amplifiers weighed 35 pounds. This equipment, with 120 thered layer, for stepout, or for other factors." Thus the era of dB gain, marked a notabie advance in reliability, and was also magnetie-tape recording began. more portable. It was accompanied by other "suitcase" pack These same years brought other developments. Medium aging and 15 to 40 Hz geophones weighing only 11 to 13 frequency radionavigation methods (Figure 79) facilitated off ounces (Figure 60). A lightweight gravity meter (Figure 61) shore surveys "up to 100 miles off-shore" beyond the previous weighing only 12 pounds was made by putting a small quartz line-of-sight limitations. Cables were often dragged along the meter inside a thermos fiask and dispensing with the sur sea fioor with the detectors mounted on gimbals (Figure 80) to rounding constant-temperature bath. keep them upright. Piezoelectric ceramic pressure detectors Not infrequently, ads refiect major exploration plays. Ex (Figure 81) soon expanded the range of possibilities for marsh ploration for reefs showed up in ads in 1950 (Figures 62 and and, later, marine detectors. The only practical souree of large 63) which helped educate geophysicists about reefs and their amounts of energy was an explosion in the water. This pro properties. Offshore seismie work was expanding in 1951 duced spectacular photos of plumes of water (Figure 82) but (Figure 64). In 1951 General Geophysical ran a series of ads meant handling large quantities of explosives (Figure 83). on the "Fascinating Story of the Search for Oil." Chapter five Souree transducers could be made powerful enough to pen (the first in the series) featured core drilling and subsequent etrate "as much as 100 to 200 feet beneath the sea bottom" chapters featured the torsion balance (Figure 65), the gra (Figure 84) and relative1y cheap shallow offshore surveys (pro vimeter (Figure 66), welliogging (Figure 67), seismie refraction filing) could be made. (Figure 68),and seismierefiection (Figure 69). On land the first real alternative to explosives as a souree of seismie waves, weight dropping (Figure 85) with an "inte THE 1950s: TIME OF MAXIMUM CREW ACTIVITY grating recorder," showed up in a July 1954 ad. The use of large arrays of geophones became more common. Testing pro The rapid growth of the geophysical industry during the cedures for geophones were featured (Figure 86) and an ad for late 1940s and early 1950s resulted in a big increase in the cable connectors (Figure 87) promised to "practically elimi number of advertisements. The first ads for new companies nate the possibility of error in making quick connections.' The were often in the Professional Directory. There were 76 such price of a geophone dropped to $10 (Figure 88). Large pat entries in the January 1952 issue. The directory listings in terns of shallow shotholes (Figure 89) came into wider use Figure 70 list many well-known names inc1uding a number of (although pattern shooting had been advertised several years company names no longer seen because of mergers and fail earlier). A high-resolution seismie system (Figure 90) provided ures in the intervening years as well as some names still with refiection data "over a depth range of 100-2500 feet," ex us. Fourteen geophysical societies advertised, inc1uding three panding the upper-frequency limit of seismie data, and a very student societies. low-frequency "2-cyc1e refraction system" (Figure 91) ex Geophysical activity and geophysical advertising peaked panded the low-frequency limit for "areas unworkable with about October 1952 when there were 102 pages of advertise the refiection method." ments in GEOPHYSICS. These were about equally divided be Radioactivity surveying became easier with scintillation tween ads for geophysical contractors (most of which touted counters which made airborne radioactivity surveying (Figure their experience) and ads for equipment and supplies like 92) possible. Borehole logging methods were developing. Con charge anchors, firing-line catchers, explosives, photographic tinuous velocity logging (Figure 93) came to be recognized as paper, drill rigs and bits, compressors, batteries, radios, a method of determining porosity, and a long-interval well winches, well logging, altimeters, transformers, cables, and velocity method (Figure 94) was advertised. Electromagnetic books. surveying (Figure 95) was advertised as a method of searching The January 1953 GEOPHYSICS inc1uded an ad for a for base-metal deposits. Geophysical methods used in explora magnetie-tape recorder (Figure 71) without any attempt to tion adventures such as the conquest of K-2 (Figure 96) and relate it to a geophysical application. The April issue talked the International Geophysical Year work in Antarctica about application to "recording of explosions, shock waves, (Figure 97) were featured in some ads. geophysical data, and other phenomena of a highly transient Seismie crew activity in the United States dec1ined rather nature" (Figure 72). The October issue (Figure 73) discussed steadily after 1952 at a rate of about 30 crews/year to 1962 "How to re-shoot a key point (after the seismograph crew has and then at about half this rate until 1970. An ad in July 1955 gone home)" with a 13-channel (plus time channel) recorder. It (Figure 98) announced that Midwestern Geophysical was dis had a signal-to-noise ratio better than 40 dB. In April of the continuing the contracting business. The dec1ine in U.S. crew next year SIE announced their forthcoming tape recorder; it activity up to 1958 was largely compensated by an increase in was advertised as available in July (Figure 74). With it "Re overseas activity. The number of ads in GEOPHYSICS dec1ined cords may be taken at different charge depths at the same from about 102 pages/issue in October 1952 to about 52 in shotpoint and the stored information integrated electrically ... February 1963. Contractors caught in a cash-fiow squeeze or series of records from different shot or spread locations can could avoid capital outlays and lease geophones for be composited and the resolved information presented on one 75~/month (Figure 99). record." Contract crews equipped for magnetie-tape recording A number of seismie playback systems began to be advert (Figure 75) "backed by two years of continuo us field experi ised in 1956-1957. Some were designed for playback in a re ence" soon followed. Tape recorders announced in 1955 in cording truck, some were for use in an office (Figure 1(0). c1uded the "hand-portable" Techno (Figure 76), magneDISC Analog processing advanced. The facility to make record (Figure 77) with capacity of 100 data channels, and other section displays (Figure 101) after making static and dynamic recorders. The playback innovation of moveable heads (Figure corrections proved to be the major benefit of analog pro 78) made "time corrections between channels ... for the wea- cessing rather than the filtering and mixing processes which
Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 2302 Sheriff had often been the justification for going to magnetic tape. geophysical news item: the Anchorage .earthquake (Figure Record sections could be made in a variety of display modes 125). An engineering seismograph (Figure 126) "Measures (Figure 102). Use of a multitude of magnetic tape sizes and three components of ground motion ... [with] a fiat response recording modes created a demand to convert from one mode to ground velocity ... in the 2 to 200 CPS range." Seismie to another (Figure 103). In 1960 the Multiple Analyzer Elim methods were becoming more common in civil engineering inator (MAE) (Figure 104), provided "information which was work (Figure 127). impossible to obtain in the past ... where water reverberations The Rubidium magnetometer (Figure 128) was "a continu are a problem." This was not an overstatement of what consti ous, direct-reading, optically pumped instrument which can tuted a really major advance. resolve changes of 0.01 gamma in the total magnetic field." A Equipment miniaturization continued. Nuclear free rather modest ad (Figure 129) announced shipboard gravity precession magnetometers (Figure 105) with a range from operations; soon a very few more details were given (Figure 19000 to 100000 gammas and 10 gamma sensitivity weighed 130): "The new stabilized platform gravity meter puts con 16 pounds. An all-transistorized 24-channel seismograph tinuous shipborne gravity measurement on a new plateau of system (Figure 106) now weighed 57 pounds and geophones accuracy ... of better than one mgal .,. continuous gravity, (Figure 107) weighed only 2 ounces. DoppIer radar (Figure magnetic, and seismie data are obtained simultaneously at sea 108) measured from the air "ground distances within 1 or 2 at a speed of 8 miles an hour." A gravity meter soon could be parts in 1000" at costs of "$1 to $2 per line mile." The infor lowered into a borehole (Figure 131). Electromagnetic, mag mation from boreholes became more complete as more tools netic, and radioactivity surveys could be run simultaneously became available (Figure 109). from an aircraft (Figure 132), illustrated by measurements over magnetite and massive-sulfide targets. A phase-lock induced polarization receiver (Figure 133) was featured. THE 1960s Additional nondynamite land sourees (Figure 134) were ern ployed and a variety of low-energy seismie sourees (Figure Important innovations in geophysics were underway in this 135) were available for marine profiling. Seismie streamers decade. Horizontal stacking, now called the common (Figure 136) were improved. Most marine seismie operations midpoint method, was first advertised (Figure 110) in October still used explosive sourees which produced spectacular water 1960; it "verifies each subsurface point with multiple ray plumes (Figures 137 and 138). In a short span of time a se paths. Since only the reflection point is common to all, noise is quence of new marine sourees appeared, including the marine greatly reduced and maximum record clarity is assured." The Vibroseis (Figure 139), Flexotir (Figure 140), the air gun Vibroseis system was first advertised (Figure 111) in April (Figure 141),and others. 1962; "Multiple vibrators operating simultaneously to in Satellite navigation (Figures 142 and 143) soon followed, crease the energy input into the earth, a repeatable control along with other marine navigation systems (Figure 144). signal to permit stacking of successive energy inputs, and cross Sonobuoys (Figure 145)made seismie refraction at sea feasible correlation of the input signal and the returned signal from because acquisition could now be done with a single ship, the earth are used. This yields good resolution of desired seis markedly reducing the cost. mie effects in many difficult areas, even from considerable A succession of new seismie processes became available: depth." A follow-up ad (Figure 112) showed a Vibroseis sweep interval velocity and space-and-time-variant filtering (Figure signal, 146), velocity speetral analysis (Figure 147), diversity stacking Electrical and electromagnetic methods were advancing. In (Figure 148), automated statie eorreetion (Figure 149), strue duced polarization (lP) (Figure 113) "has been successfully tural mode1ing (Figure 150), and automatic migration (Figure used in exploration for disseminated sulphide ores which do 151). not respond to other electrical methods and offers particular For some time the number of "speculative" surveys had advantage ... in areas of low-resistivity overburden and strati been increasing, and the data were sold to many companies fied rocks." Low-level airborne surveying combined a variety for much lower cost than for more conventional exclusive of methods (Figure 114): "in-phase and out-of-phase electro surveys. The first ad for the sale of data was for an airborne magnetometer with total field magnetometer and scintillation magnetometer survey in 1961 (Figure 152). Gravity data counter." (Figure 153) could also be bought, and finally seismie data Soon a series of ads announced new seismie processing (Figure 154). One reason for "spec" surveys was to keep crews techniques: pie slice (Figure 115) in 1962, skipping-mixing together despite the steady decline in geophysical activity. (Figure 116) and deghosting (Figure 117) in 1963, optimum Companies were closing small offices and consolidating oper horizontal stack (Figure 118),deconvolution (Figure 119), and ations. The industry was beleaguered, as evidenced by an ad the promise that these could all be combined to detect strati for the 1973 Midwest SEG meeting (Figure 155). graphic traps (Figure 120) in 1964. The first ads for digital recording systems appeared in 1964 and 1965 for land (Figure 121) and marine (Figure 122) work. For a time, analog and digital recording and processing were mixed; sometimes analog recordings were processed digitally and sometimes di THE 1970s AND THE ENERGY CRISIS gital recordings were processed in analog form; AID and DIA converters (Figure 123) made the required mode and format While there have been no "break-throughs" since the 1960s changes. when digital technology and data processing changed geo Some ingeneous innovations such as beam-steering (Figure physics considerably, instrumentation continued to improve, 124) failed to have a lasting impact. A 1964 ad featured a applications expanded to new areas, and a multitude of im-
Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 Geophysical Technology History 2303 provements (each minor by itself) added tremendously to geo- mapping the progress of a fireflood, steamflood or gas injec- physical capabilities. tion" open up huge new opportunities for geophysicists. Magnetotellurics (Figure 156) grew from an academie method to a viabie exploration tooI. The geologie irtterpreta- tion of logs (Figure 157) advanced from simple correlation, RETROSPECTIVE OF THE ADS lithologie, and pore-fluid identification to stratigraphic analy sis. Airborne mapping techniques (Figure 158) expanded with How does the chronology seen in advertisements compare magnetic gtadient surveys and side-Iooking airborne radar with the chronology derived from other sources? Generally, (SLAR), but digitized data handling and computerized inter ads could be expected to run after the first applications. Since pretation algorithms (Figure 159) also contributed signifi ads are meant to sell something, they may not appear until the cantly. High-sensitivity surveys (Figure 160) expanded the item is sufficiently available. aften the first ad for a new amount of significant magnetic detail. For velocity surveys, method claims appreciable experience with the method. As an the use (Figure 161) of air guns as an energy souree and the example of the time delay, the first gravimeter ad ran in 1939 wall-Iock geophone as receiver made surveys cheaper and although gravimeters were becoming common by 1935-1937. easier to acquire. Interest in geothermal deve!opment (Figure The impact of World War 11 did not significantly affect ads 162) began before the Arab oil embargo changed attitudes unti11943. to~ard energy development. New electromagnetic techniques Since many of the ads shown here deal with the seismie (Figure 163)continued to appear. method, I compared some of the dates with those shown in At the end of 1971 an ad for interactive interpretation Sheriff and Geldart's Exploration Seismology (1982). A chrono (Figure 164) heralded (about a decade eatly) the interpretive logy tabIe is shown in Figure 185 along with an index to the techniques which are just beginning to be extertsively applied first ads shown for the respective methods. In most instances today: Amplitude processing (Figure 165), the "bright spot" first ads are only delayed about a year. While ten years lapsed techmque, began to appear in ads. between the use of the common-midpoint method and lts first More versatility developed in seismie recording. Three advertisement and nine years for the case of Vibroseis, in both dimensional techniques (Figure 166) appeared along with instances the first ads preceded extensive applications of the time-slice (Seiscrop) displays (Figure 167). A 208-trace stream respective techniques. Dates for some first ads are also shown er showed up for marine work(Figure 168). More alternatives on ~igure 186.for the percentage of seismie activity involving developed for getting seismie signals from geophones to re varrous techmques. The first ads preeede significant ex cording truck with radio-transmission (Figure 169)and at-the pansions of use in every instanee except for the marine nondy geophone digitizing (Figure 170). The number of fieldchanne1s namite curve which lags a year. Thus it appears that ads do reached 1 024 (Figure 171) and, according to an ad (Figure not lag behind first use by as much as might have been ex 172), has now reached the capability of 10 OOÖ (although I do pected. not know of anyone using more than 1 024). Channel-wave Throughout most of the fifty years geophysical ideas were surveys to locate faults in coal mines and surveys of storage ahead of the instrumentation needed to permit their efficient caverns (Figure 173)have become relatively routine. S-wave as execution. Rieber's controlled directional selectivity (Figure 6), weil as. P-wave logging (Figure 174) gives civil engineering the common-midpoint method (Figure 110), deconvolution needed information about soil strength. processing (Figure 104), and interactive interpretation (Figure One result of the energy crisis of the mid-1970s was tremen 164) are perhaps the most obvious examples. Perhaps instru dous expansion of geophysical work and a demand for per mentation is no longer the limiting constraint, and this may sonnet which exceeded the supply. A number of personne! pose achallenge to us to generate application ideas. Perhaps a reeruitment ads appeared in 1977 (Figure 175). Geophysicists review of ads between now and the next anniversary issue of today may look back on this era with envy. GEOPHYSICS will show amazing progress. Instrument sensitivity leaped ahead. The magnetic field could be measured (Figure 176) to "0.00001 y Resolution" with the SQUID magnetometer. Near-surface radon detection (Figure 177) became a practical tooI. Marine profiling em ploy~d a ~umber of tools (Figure.178)to give a more complete ACKNOWLEDGMENTS detailed picture of the seafloor and subseafloor. The multitude of airborne survey methods available was emphasized in a I have to thank my wife, Margaret, who not only en 1980. ad (Figure 179). Inertial surveying (Figure 180) freéd couraged this writing but also contributed to it in many ways. I also express appreciation to the Milton Dobrin Memorial gravity acquisition from the convention of surveying along Library at the Allied Geophysical Laboratories of the Univer traverses. sity of Houston which has copies of GEOPHYSICS with the ads Seismie logs (Figure 181) translated seismie data into a dif ferent form. Use of vertical seismie profiling and shear-wave intact. Note.-A much abbreviated "History through advertise surveys (Figure 182) expanded. The ad (Figure 183) which ments in GEOPHYSICS" was presented at the 50th Ann, Mtg. said, "You've always thought down, now think lateral" is es and Expos. of the Soc. of Explor. Geophys. in Houston in pecially good because a new viewpoint often proves to be the 1980. key to deeper understanding. The final ad cited is for development geophysics (Figure 184)"to increase oil production." The three examples cited in REFERENCE this ad, "A continuous image of the structure in 3 dimensions Sheriff, R. E., an~ Geldart, L. P., 1982, Exploration seismology, v.l: ... , Spatial vatiations of facies and porosity, and a means of Cambndge Umv. Press.
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1'1\ ill thl' Il,lIld", IIf nWH Hilu:-;c Ilr~fit .. drill at a }Ii,!:h ralt' of :o:p(,l'd. :11\(1 (II ::r bw i:-...... ]lc',d af{' d(lilJ,:: tip' intl)""· "II III!' IIpt'n ,".Iad_ 10 \11 ;)n \Hill...... The improved Aslania masndometer en Checktng the magnetic data obhlned. WIth CD Jk('au~t' 0111' 1"11~:11\''''tjOJ1'" l:-i 1'1'1' hllur :lrt' llLtaillnL of .. ",il.ll'. of tl\(' ables you to "tt;,ck mdn), problt-ms whIch Wfre tor~lonbaianc€' and sl!i~m.crefled!on equip former!}' cons.ldrred re.sch of IH·II.. pcctiJl;!. But Ihi .. j .... 1l1:1r!1' ('.l .. ~ tlw 11l!!;..'l,dlJi'''''' IIf tIlt' {'nllll' d\a:-; ... i ... be)'ond the the ment then becomes" simplified opt':fation. magnetomet.:p. Experienced operators know and appreciate = :IW! rapid hy a II{'\\ unit. \\ilil"l1 thl'" lInll :-.Ll!I i" ,1 Ili,~ldl,pOllaldl' \\;jICI" \\(,11... It i~llIilunkd on " Hp."'. FIOrd \ .~:tnwk ('ha..;.",;"'.-;ll1d ll1'c:lII"'e \lId t'qu,llh i!lIl"H j,lIl! ... ,If In (If i, ... d,· .. i;,:n ;Hld 11l1:.!.lll: 111)\"'1". it Iht' 1I111lHaI lift' (if !hi..; t'll r i!1t' h:!:-:. j .. ll'.ldd. ill i\"f\ ;111\ n}wrp a \dwr} 1'.1..... I·d. it (';In b" rq,J,wl'd ill a fl'\\" ~ \\ill !lltH •• Illl"l!l.!.'"h hub·dccp hnllr'" \\illl a bllon- n'huilt t'!ltsilll' IHlHL ....\\.!IUp .... 1 il'l' licl,j",. or i>\I'r .It a (0 ...1 Ic..;:-. Ih.\!l 111:11 I)f an t~rdi· til(' fPlq.dl""" I (1('1..-"0\ ('red IliH .... 11.11 \ ('Il~;IlI'0\ IT-II'-WI. AMERICAN ASKANIA CORPORATION SEE YOURNEARES-T FORD DEALER 825-827 M & M BLDG., HOUSTON, TEXAS l'!t:,t~,mlell'\]' (;j\q"l\'I"~\Ahn! ,Hln·rti ...... T~ l'k.l~"llwnt,\)l1 (:1 ~Jl'IJ\~t,'"\\ llell ,111'\\ "1[11:.' ;!II\ c>rlj~l'rx June 1936 June 1936· Figure 1 Figure 2 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf Geophysics, the Journal of the Society of Petroleum Geophysicists {;(C"ldlY"!I'-" tlw J,)urn:tll,f till" :'('11('1~'I! i\'lrlJit'tnH (;('I1Jlh~:·Ki,,\.., In the field or· on your desk PROFESSIONAL DIRECTORY the small Monroe is indispensable Space reserved for members only, For rates apply to F. M. Kannenstine, Editor, - 2011 Esperson Buiiding, Houston, Texas. OLAF F. SUNDT JOHN S. IVY Geologist and Geophysicist United Gas S) ftem Specializing in Gravity Work 921 Rusk Bldg. 1312 Esperson Bldg. MOUSTON, TEXAS HOUSTON. TEXAS Phone~Preston4]39 ~ ::I: ~ ~ E. E. Rosaire F. M. Kannenstine 2- JOHN H. WILSON f:) CD ROSAIRE AND KANNENSTINE o Consulting Geophysicists Colorado Geophysical Corpuratilln ~ Midland Savings Building "': Esperson Bldg. DENVER. COLORADO HOUSTON, TEXAS ~ ~ ~ Th()u~a!ldsof hlollroc Adding.Cakubrors wnting madlines. And t.'veT)' 1\,1\)nro(: :::I o are ar work in the Petroleum Indu::otry. user IS ,1~~url',Jof uniort.rruptl't1 iigurc pro o Many ,If(-completely uuwnutic !:lenric dUC11011 hy Monrot:\ n;.\ti(Hl~Wjdt:ii.e;un: i moJcls, mlH:rs the lund opcrau.'d D1J. '>ervin" H.:ndcft'd by 1"'0 hr:llllh oHiLt'S '< H. F. SHORE BASIL B. ZA Vo/CO cbines th.H you (.ttl carr arolln~l[Ike a r!llonglHlut til£: l·!lJ(L'c! Sf~tlCS.;\ !)(.'\\ Geophysicist Consulting Geologist and Economist purtablt: trp('Wri(tT ,wd work wlth wh('rc booklet, ''If Only I COllt~t\\'ork (In YOUI eyer you ,Ut: in the f1cld, on tr.lins, in Dt'~kfi)r .In Hour" comp!crdr dl.::o>cnhes Gulf Building 2011 Esperson Building your hotel W\)nl. HOUSTON TEXAS tillS vH'-H1dt:rt~d,b lo(h, .hldlllg HOUSTON TEXAS t~)f fI"~.~ Monrot:'", c;x!' Pka~,·llwnt,\l11 l.;,~q'll\"H'\~fWl\ ~!n,\\t'nll,,~ :,·h-c'z1),,-,<'r, Please mention GEOPHYSICS when answering advertisers June 1936 June 1936 Figure 3 Figure 4 ~ ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf :-}()dd~'trlJh~um eeophy",ic'i~t:-: \.vi (;C()l!h).~k:-. S(j~'idy}'(~1rolt'unl w xii (le1'lphy.."ir:;., lill: J outnaJ of lhe of P .. !lw Jounlll] \If lilt· of Gt'oph);,-ki:;.\:,; '"g CONTROLLED DJRECTIONAL SELECTIV1TY EXPERIENCE- THIS MONTH WE WILL COMPLETE OUR 549th CREW MONTH OF OPERATION. The ..i lltl}{/totic iI nalyza ,l'hl)~1'1IIIt'rc lit if i Zt',f (l LAST MONTH WE FINISHED OUR 30TH phlit(j~cl.'dricall and COMPLETE RECORDING UNIT. j)rt'l'isr oj1tl!-a] ,rystftJl. HERE IT IS: It irlnftiji·" .•' I'r/l"cioi 'H',.''i'fS H.'hidl the 1",1',", ,/ill Jlf)l detect fin rt',"fJrd,\ of til( a.waf 'Vpl'. A RADlCALLY NEW METHOD OF REFLECTION (I) PROSPECTING FOR DIFFICULT AREAS :::r II~ =: OUR 31 ST RECORDING UNIT IS ON THE WAY. NEED WE SAY MORE? The new Rieher three dimensional technique is nllw being used in mapping steeply folded and faulted strurtures where earlier methods haye yielded confused or inaccurate results .... !\,i\'ance reservations for \lid-Continent and ~!ltrDkI~ Gulf Coast pmjel"ts are advisable. Kennedy Building. Tdefones 2-8 18 I , LD 548 TULSA, OKLAHOMA, U.S.A. Engineering Laboratories, Inc., Tulsa, Oklahoma Engineering and Manufacturing affiliate RIEBER j,ABORATORY 1007 BROXTOl\' AYE. LOS ANGELES CALI FOR;--';IA (;l.III'n\-"H"~ !'r1j'M~r:,; Ple,t:-!' melltkm {;j,{)j'!lY;,l\:, IVht'll :m~1.\('ring:H\YI'ili'frS- Pka5i.' nH lllwn \\ ht'll am" ('rim.: "," June 1936 June 1936 Figure 5 Figure 6 Geophy,;ics, the Journal of the Society of Pl'lrolcum Geophy,;ici,;t:; ix DRILL FEWER DRY HOLES THIS YEAR Dry holes will never be entirely elimi machine. By its use, structures nated. The use of scientific methods, how which are missed entirely or only ever, will greatly reduce their number. dimly outlined by other methods may be odequately mapped, per You are looking at the most effective mitting accurate control of the geophysical instrument known-the Rieber drilling program. Sonograph Analyzer. It is operated in a central laboratory by trained experts. A limited number of fiela parties ;s available for work in Sound records of explosions, taken in the California. Mid-Continent and field, are sent in for diagnosis by this Gulf Coast Fields. January 1937 Figure 7 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ xxii GEOPHYSICS, the Journal of the Society of Exploration Geophysicists (~FOPHYStC:'-;,tilt!' Journal (If tht' SI)('Iety of E"-ploration (;l'oph)"id:;l.:5 i ANNOUNCEMENT • The first applications of the Rieber Sonograph system in Cali fornia were directed toward the solution of structural problems associated with relatively steep folding or faulting. Recently it has been found that the Sonograph can be ex tremely helpful in outlining complex structural conditions occurring in the Gulf Coastal region, due to faulting and THOUSANDS of square miles of territory which may some day t.e prod.ctiv. of oi...... , .. fact, ,"usf become prod"dive if irregularities and sedimentation. the nation is to contin... to supply its OWII future 1I•• ds--are now os blank to oil men as the vacant spot on this pieture. The complicated str.cture. of these areas hay. defied geologists and geophysicists olike The Rieber Laboratories take pleasure in announcing the open for many yearlo 8y setecti"g that range of earth "ibratioltl which is most .... ctive for r.lection exp:4ration. and by treating them in their true character ing of the Houston office, in charge of a competent geo as sounc". the rel.cted waves are automatically recorded Oft film as lound.. track by the most advanced sound ..recording methods. The field physical staff, and equipped with a Sonograph Analyzer. dota are later interpreted in the laboratory by an accurate. unbiased U) machine. Thlls .. tlte Rieber Sonograph system has contributed a new ::r scientific approach to geophysics. Areas hitherto thought unshootable CD~ are mapped ift detail: structures which produced uno reflections" by The geological profession and others interested in Gulf Coast older methods ore made to reveal themselves by this system. exploration are cordially invited to visit the Houston office for BIEBEB SONOGBAPB SYSTEM == discussion of Gulf Coast structural problems not clearly soluble Extending the Scope of Geophysical Exploration - SUCCESSFULLY by other geophysical methods . • RIEBER LABORATORIES 1007 Broxton Ave. 1002·3 Espel'$on Bldg. Los Angeles, Calif. Houston, Texas. Ph, W. LA. 36541 Ph: Preston 6964. Ph': March 1937 March 1937 Figure 8a Figure 8b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf Gel1phy:--irs, tilt' Journal III ihe Sodet). of l'dwl<:uOl G~'ophy,.irh,l;;; iii iv {;~>"jlh;."i(.,ttll' Journal (,I lhc ~O(if'lYof !\irolcum (;coj)h;.t>kl<;ts bPrtrrtu56~NEW BOOK SCOUT: Every time I OPERATOR: Yes, this new is sma!l~ H:~you, your ~quip- torsion balance the m~rd gds s.mal!er ut, lightest and f,ntes't in~ and ~m.,!ler. stwment on the market. for SEISMIC PROSPECTING DUi!~~~a~~epaJ!v~~~~:~~: have taken place -in seismic pros pecting. These are evident in the new types of DU PONT exploF sives now available and in the methods of using them. Du Pont explosives engineers have been actively working with seismic crews to observe the performances of du Pont explo sives and checking prescribed shooting methods or their modi fications. ~ In this new book are descrip tions and illustrations of the tests :x: made of various types of explo~ sives to determine which ones i wel·e best adapted to require o ments of seismic prospecting. ~ The book aJso indudes informa~ tion regarding du Pont's new seismograph electric blasting 2- caps, as well as storage and pre~ I:) cautions attending the uses of ex II plosives. o The contents of this new book "tJ are of practical assistance in the :::T selection and application of ex~ plosives and detonating accessor 1 Ies for accomplishing efficient, n economical and satisfactory re sults in seismic prospecting. !. Write today to the nearest Branch Office for your free copy 3 of "Explosives and Electric :::T E I'k'a:.(' nWlltXoll t;J'\;!'fl\,"H'~when a.n"wcnn~ adV(;rti"l'f:- t'lt'a-.(' nH.'otjl'n GJ October 1936 October 1936 Figure 9 Figure 10 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf II.) W .... ('EOPHYSIC~,tilt' .lourn;d (If thi' :;nch-1Y (If Exploratj()n Geophy~i{·j"'t!'t o Insist on MULTIPLE METHODS of PROSPECTING tn :T Recent advonces in Hl¢ seismic method of H!bsurface prospecting CD hav!:, been matched by equl.lJ lmprovemMb in the gravity ltnd mag~ .. netIC methods. Gravity and magnetic eql.lipment htls been improved. field technique == ModIfied to Slut condibons, and a wider upenence acquired in the Interpretation of gravity and magnetIC data. During the past few years, lah:r cheth by othel methods itaV£" im pressively demonstrated the correctness of gravity and magnetic "",,lyses. For economy. for mOle accurate judgment, multiple methods of prospecting arc today recomm~ndedby le-ading geophysicists. Oil companies, independent operatoN; and contractors follow thIS estab· lished procedure. Insist on multiple mdhods of pros.pecting in your own geophysical work. Multiple mdhods mbke your geophysical fe;ports. surer and ~A~eliminate unr"!ccs~"ry expens.e for le8se~and drilling. Write us for detai!s on ASKAN!A Torsion Balances, Magndomtrkn, and Sef$mic Reflection Equipment. AMERICAN ASKANIA CORPORATION M. & M. BUILDING HOUSTON, TEXAS Pka':>(" nwntill1'\ Gr'OI'J{Y:--IC':'- '\\'l:wn ;l.n"wnin'.! mlnni'St'r" March 1937 January 1938 Figure 11 Figure 12 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSfCS. the Juurnal~ of the Sncidy of Exploration Gc{)phy"iti~t5xi MORETHAN 15,000 fEET WORLD WIDE E XP ER I ENCE AHEAD Of THEBIT! ~lItn1kf~ ,I As a result of our lU.Ii(·y of ('onstOlll r-est'urch nnd develo}Jltlt"llt Wt~now offer Ihu·tahlp t~(luilnnf'n.with an ft~IUurt's of our StatJt.lartl nt~ne'·tiolllfnils- 'hu" tJ...., cl..,epl"~'0'; ....,./! ,}",.. ft,· 0,,(11''; "" .. "'(1{l-J,·d ", rl.'tI"(ll0" ''''1'''<:1 ,-,.. {,p!'y~,r'"(.0<"P""1 iO';-'~'''(1(,he"d 'Clw,",d ~ 70 !')('lO.<;:> J(l,OO{, IN" h..,:u"" ''' ... ""dr. \ W,f,,( ,,,,lor(' "'!O''''O;'¢'' ~ t)<,,; !<:>,.-_<'''')'';''''1' 1on"fl:"'e \~b",,,,,(i' p'd",.., '''''' .hl" ~ 2- Q .'j"" ~''',C;!!:... ,J {,~", +"" liI~" CD ".,.,,, X'~'Ij~\" '" ~"'Pf'!) ~''''~ o )';0 {""-IT W1-;U;HS OVHI tOO J·.H':"-iU~'C(nWI,f:TE 'a ::::r ': Proven by WOI'k of sen'ral (~r(~wsin Trinidad, Venezuela, n !!. Ar~('lttil1a,A",ia amt various purl", of til(' United Stlltes. Wt> han' (1(,,"-('IHI)(~dn Purtabl.· lIal'(1 Ito('k Itntary Brill ,,"'hid, disas.!':t'"lllbies i ::::r into units "'('i~hjn~it,,,!'>lhun 250 Ih." (,at'h. for Pl)l'talW un nml.·s 'or ('ume-lt. :s o 'rCrite lor lnformllti(m i MANUFACTURING AFFILIATE '< ENCINEEIUNC LltlJO/t41'O/UES, INC. KENNEDY BUILDING TULSA, OKLAHOMA, U. S. A. Ph·,ls.' ml'ntion (;~:fH't,Y"I(''';wh('11 lln~Wt'ringadvt'rtist>rs October 1939 March 1938 Figure 13 Figure 14 .....~ .... 8 GEOPHYSICS, the Journal of the Society of Exploration Geophysicists MECHANICAL.ELECTRICAL GRAVIMETER ACCORDING TO GRAF I. Measuring accuracy ±O.I mgl. 9. Calibrating equipment installed. 2. Duration of a measurement per set-up: 4-5 min. 10. Very small drift. 3. New stations per day: up to 25 depending II. Installed double thermostat; measurements upon road conditions and distance between possible also without thermostat. stations. 12. Outstanding stability under field transport, 4. Measuring range about l,bOO mgl.: a still wind and tropical conditions. larger range can be provided if desired. 5. Measuring sensitivity: 6-12 mm. equal I mgl. 13. Spring-like installation in truck: no moving of on the indicating instrument. instrument in truck necessary. 6. Instrument air-tight, hence no barometric cor 14. Recording of temporal variations of gravity rection. possible, without changing or readjusting the 7. Very small tilt sensitivity. Tilt in both hori%ontal equipment. Measuring sensitivity in this case directions of 60" results in deflection of less 0.5 mgl. equal 100 mm. and more. than 0.1 mgl. 15. Weight about 125 Ibs. 8. Constant scale value; linear characteristic with in 1,600 mgl. 16. Price on request. For further details write AMERICAN ASKANIA CORPORATION 826 M. & M. Bldg. Houston, Tex Please mention GEOPHYSICS when answering advertisers January 1939 Askania Figure 15 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 14 GEOPHYSlCS, the Journal of the Society of Exploration Geophysicists GUl!'H\~SlC":;.t!l\' JOUtfl;.jJ (,f the S(}cil'!~of Exploratilm (~t'nphy:-.ki:-,ts15 ONLYONE -STRING TO YOUR BOW? WE CAN OFFER YOU EFFICIENT SERVICE IN ReF>L.eC1"/ON S/-fOO1": ALL MODERN GEOPHYSICAL METHODS ~.>, 4F>""C4 7NG FIFTEEN YEARS·WORLD-WIDE EXPERIENCE ENABLES ;. ,- US TO CHOOSE THE TECHNIQUE BEST· SUJTED ct< TO YOUR PARTlGULAR PROBLEM COMPAGNIEGENERALE DE GEOPHYSIQUE ( SCHUlMBERGER METHODS) ~~~!f Rue Fabert. PARIS. -".-.. ~ ::E: ~ -< 2- Ii) CD .g :r ELECTRICAL ·RESISTNITY METHOD ~ THE ONLY FIRM WITH A LONG EXPERIENCE Of'THE D.C. TECHNIQUE C:;" !!!. SCHLUUBERGER.ELECTRICAL· PROSPECTING METHODS ~ :r 2720 Leeland Avenue. HOUSTON. TE.XAS :::Jo i Agents in "< NEW YORK. LOSANeELES • SEATnE. MARACAIBO, CARACAS • .COMODORO RIVADAVIA , SANTIAGO. SAN FERNANDO. BOGOTA SAO AtlULO. MEXICO. KHOOAUN6 • 016BOI , PLAD.lOE • RABAT, PLOESTI , LWOW. BUDAPEST, TOKIO. AI Patents all over the wo,.ld Please mention GEOPHYSICS when answering advertisers Pi"'.L"it'nwn;ion Cr,(lpJ]Yl"WS wht"n all."n'rin;.:. advcrti::.ers January 1939 January 1939 Figure 16a Figure 16b N ...W W on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf NI GEOPHYSICS. the Journal of the Society of E~plorationGcophy~icists W~ .... DETAILED SUBTERREX BY SOILANE For All Discovery Wells. And For Oil Fields Of As Yet Undetermined A,ealExtent STRATIGRAPHIC PROSPECTING WellS Dry m MaIn ~~ PdySand buf ANALYSES OF oj> SOILS AND GAS SEEPS . EUREKA OIL FIELD FOR ., HARRIS COUNTY. "TEXAS SUBTERREX en HYDROCARBONS BY ::T SOILANE F"OR ETHANE + PROPANE G AND .. +0_ W£~p~~~~o ~'rg:£~~=T~VEY q:,¢eWEl.u COMPl..£TED /tITP aOLANE·6UiIIV£V ASSOCIATED SIGNIFICANT CONSTITUENTS CONTOUR I"'IT[AVAL =2.)( == SCALE 1000' 2000 1000'"4000' !Ooo' MAY '..,,"0 The Soilane map reproduced above Wl!I'placed of This case treatment it an uccllent illustration of one SUBTERREX record shortly ",Her the dis.. overy well at the Euteu ve£y usdul application of Subterrex by Soilane in de Oil Field, Harti, County. TU 11Ie Ethane halo, rtproduc~d.bon. ;s shown in r~ lationship to the subsequent dl':yclopment. Noh: how the Eth41'1e halo predicted not only tI,l': major alus of the producing area, but the limits of production to the southwest. 4 prediction which was c:onf'i:rmed by two dry holes drmed oubid.e the halo "fter tnifi survey Plca~mention Gf.OPHYSICS .....hen answcring advertisers was of record and had: been displayed. T-he survey 4bove required IO'i/ ~.mples.dl5tribut1td over ~OOOocres, at a contr.,ct price af less than $1500.00. By ElTRAN and SOllANE Such a" investment is not unreasonable fOef information of this nature whlch is. 10 intimately related to the limits Address inquiries to Dr. E. E.. Ros..irc. Sole Owner, ef ptoductioa.. &pctlon Buildi"" Houdon, T..... U.S.A. July 1938 July 1939 Figure 17 Figure 18 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 2Z (,EOPHYSICS, the Journal of the Society of E,ploration Geoph)!-ici~t~ (;EOPHY:-;lCS Ill\' Journal I)j the ~·"lt·ty"f E"'pl"r,di"n l.''''lpby",iC1''t~ sizmoSl=Im S~Z: ~h.~ ct::3>-RRf YOU USI nG T~~ I ~'~' nfW A';·~~nw> ~~.'4. SJ;AmLfSS ~ 3i LB.SHOT-.uOL ~tlnd COR[ % ~ C~SlnG Going through country like this with ... DRilL ? '< cars and trucks equipped with King a IN QUANTITIbS 01= 10,000 TO Ci) 500,000 fEET ITCOMPARESIN PRICE Winches is easy. oCD wlrn REWORKEDJUNK PIPE: ..... ::r "~ Saves time and money.... Write n WATC-UFOR OUR N~W Ll6UT W~16UT for literature. !!. DRILLTO MATC," rnl~ CASIN6 ;: ::r :::lIo i GEp.E. FAILinG KOENIG IRON WORKS '< ;7U(JPf,qCumpaAU( 2214 WASHINGTON AVE" HOUSTON, TEX. E HID - OI'o.LA. • HOUSTON·TE-XAS 1'1\""1~t'mV1l111)!1 {;~')l·!l\'-!t...,\\,II:,!] ~\rl"'\\I'r!l\l! .\1hl'rti-d' Please mention GEOPHYSICS when answering a.dvertisem July 1939 January 1941 Figure 19 Figure 20 N ...W (II on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ ~;~ .".... ~EIITEREFFICIENCY AT LESS COST .. . " WIT H NATIONAL'S 24 TRACESEISMOGRAPH The Natlona! 24 Trace Seismograph is one o{ the most Important developments. In exploratory seismograph equipment. In addlbon to provIding a new and beHer service, It IS read',ly adaptable to any type of transportation, embodYing an as.· sembly at small, Ilght .....elght but. rugged ly constructed, qUlclr.h, interchangeable units. en EMBODIES THESE OUTSTANDING :r FEATURES ... III... • 24 National Type 20 C Amplifiers =: • 24 Unit, Mirror Galvanometer, Record sse has developed special techniques which ing OsCIllograph in solved complex geological problems many • 72 Nabonal TVpe \ 2 E (Moving Coil. areas throughout the world. Electromagndically Oamped) seis These Modern Methods combined with more than one hundred crew years of actual field mometers experience have enabled sse, in evaluating • Wide Range Automabc Gain Control million!; of acres of leases, to add more than s fifty-three new oil fields to the world's pro • Adjustable Hlgh.Pass and Lo .....-Pas duction. Electric Wave Fllters Our world-wide experience is at your service. ~JIIs,1D'"q~ NATIONALGEOPHYSICAL COMPANY CONSULTING EXPLORATION GEOPHYSICISTS 1003 TOWER PETROLEUM BLDG. 8806 LEMMON AVENUE KENNEDY BUILDING ______TULSA, OKLAHOMA, U. S. A. ______DALLAS, TEXAS January 1940 July 1941 Figure 21 Figure 22 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf Western Pioneers Multiple Recordin ~&r~~ :.Q. ::I: ~ ~ 2- Ii) CD .g ANOTHER WESTERN GEOPHYSICAL ADVANCEMENT 'Z ': '\": "\[<""" :fl/E'If~ t A""""[~,'\> ,'r"\1f.., _",1 lile 1.1' L"",'·\V,'I!~EI,,,'tr cl,·,i!1!lPd.'r,d'''I'~II'''I('dl(}I''·'milI1...uwnb .11,'. ),,\<"11 ~,·t:lll!Iw .1 .. 1,,,\, "'~,!'!, "r,,:': b,II'~("j""!,I11<',, p"",hl(· ,on~j~t+'''tLl~t'·r. at I"",'{ ,,,~!,".tlt El, >"If"I,,1' i :::II ,,] ",II. <'" Ul,"'~Tl,.. .",towlll,,· ",\fW'I,1 o In':i'[' tCli't,1 i)!"IPMT!~. ~ pi,,j[,lli"!1 ,,,,,I l"o.iudWr! EVERYWHERE 1J/elteuer~~?~~:~~D:~L COMPANY HOlTSTON. TEXAS January 1942 July 1941 Figure 23 Figure 24 ~ ..... -.. on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 10 (;EOPHYSIL'S the Journal of the Society of E).ph)ration (;tophY::;I("i,:;t~ ~ .... 00 ,1'.1, .....,.. ~~~ ~ .. ;\\\~~~,.,:"" ~~ ~-:-~~'~... -,--~. ~_._~u.,...~', ___1'-- •• N-- - i -. -'~--".,~ ~ .~~.-' ~..'" . " "-~~i~\~\:~: [ ."_J:!I.~~ . aN' nut 81'hjt'~f'dsilllpl}, b}' ,Irotidio4 fhl' Iint'st ;lIl1trlllllt'lIts and Ihr IDlIst modr"l1 t'qIJiPIDf'1I1finltl r!'Sulls I'IUIhi' lUI bt'Urr Uum 'hI' ifill',.,,"'" lotiun fIIt"lllUds f'mpltl)ll'd. II ill II fmulllfllf'lIlal pflJk), 01 H:\JTH} Illat lJ rotlslalll M plllif)'. All UN'fW sf'isnl6l"Ai~1S(111' r'i.~lIro1Jsl)'Irl:liut'I' ill 'hI' apldinltitlll == IIf parh prllYt'n dt'whlplIlf'UI ill IlIft'rprr1aljo/l 'rdlllifllll'. UNIT E D liE0 P III SICitL co. $S99 HlI\IIT:llf HOOHR JB., f'lU-S 12~!",r Il:'>t 1l.!'!:'C·H St, 1'!lsmII'IM, l:l\lir. * 14Uh I Sjll'NlIII Hid!!" HOIlJlloll,T\·\il.~ 4111 Il'dnallm ihl'IlIl\', r>... "" \'01'11..N.\. * 30:; ThOlIlP'«ll1 md~,TIlI MAIL COUPON TODAY Citv'" 'tlt( -'>!l(,,·t""- ,-" P",'h'U 1'1Ifll Jllt',\'ol' flll'llti"n i;1 Ill'l!; -'1(-:-. 1.\ lien :lll'"-\H'r!n:.c adY('rtl~'r... July 1941 October 1940 Figure 25 Figure 26 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS, the Journal of the Society of Exploration Geophysicists 21 A New Book of Unusual Interest SY N C H RON 0 US GEOPHYSICAL PROSPECTING FOR OIL By L. L. NETfLETON Geophysicist, Gulf Research & Development. Company Advisory Professor of Physics, University of Pittsburgh 444 pages, 6 x 9, illustrated. $5.00 Like.aBaltery The purpose of this important new book is to provide in a single volume a connected presentation.of the principles and practice of modern oil prospecting by geophysical methods. The: selection and emphasis of subject matter have been governed by the author's wide .of FIeId G.u experience and active participation in the application of geophysical methods to prospecting through most of the period of their development. Particular care has been taken to explain dearly the necessa'ry procedures for reducing field measurements to usable form. Send for II. copy on dppro'rdi McGRAWcHIEL BOOK COMPANY, Inc. 336 West 42nd Street New York, N.Y. ~ ::z: Applied Physics ~ is never a'static science. < Research done today is extended and refined tomorrow. 2- Through the medium of a periodical, developments can be presented Ii) as they come from .the laboratories. CD .g THE JOURNAL OF APPLIED- PHYSICS ::r has published special articles on ~ X.rays; Television, Photography, Spectroscopy, Photoelasticity. Other special issues are planned [ THE JOURNAL OF APPLIED PHYSICS ~ , offers the following subscription price: ::r U.S., Poss. ::I and Canada Foreign To members of scientific societies .. S5.00 S5.70 o To all others. .. 7.00 7.70 i Address sKbsCTipt;ons '0 '< The American Institute of Physics 175 Fifth-Avenue, New York, New York Please mention GEOPHYSICS when answering advertisers October 1940 July 1943 Figure Z7 Figure 28 ;! CD on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;EOI'HY"IC~tIlt' ]OIurml of lilt, S,)(ltl\ of F,<:p\,)r.ul()n (;t"OJ-lhY;'ld~h 21 CE{)llHYSICS the Jnnwal (If tIll' SoOdy nf E'plnratlOo (~t'\)ph~:-in....t:- ti ~ IT'S NO MILITARY SECRET that fine equipment pays the client big dividends in Geophysical Surveying ~.-cst A Barret magnetic truck designed to accommodate, and transport without injurious vibration, a vertical~ intensity and horizontal-intensity magnetometer v (I) :7 Throughout the oil provinces of the na ments of American seismologists for it is. •.. tion an army of seismologists is busy map FINE EQUIPMENT CONTRIBUTESMATERIALLY TO they, working in close harmony with Ameri ping tomorrow's oil fields from which will can oil producers, who not only have been = flow the wherewithal to aHain victory. THE SUCCESS OF BARRET MAGNETIC SURVEYS, instrumental in establishing the petroleum The bombs that bias! the axis from Berlin reserve that has carried us thus far along to Bangkok to Tokio may come from the M ioeene in South Louisiana or the Glen the road to victory, but whose: ingenuity WILLIAMM, BARRET.INC, Rose in East Texas. The coup de grace and aggressiveness as.sures a steady flow of . might well be labeled with the compli- fuel to our fighters. Consulting Geophysicists GIDDENHANE BLDG., SHREVEPORT,LA. PIe:,.,\:" Tllt"llti"n {;U)!'II\ ~u~ \~hen In''\\a!l\~..tdVt"fll',·r, HOUSTON I'Jea~lllt'ntil)H {;1:()1'11\~1('~wtWH ll.mw(,rinl! a(l\t'rt!"'l'r:i July 1943 July 1943 Figure 29 Figure 30 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;UH'IJyl..,l<.·'" the J ~ :t i ~ T he Targets are 15 tifnes smaller! 2- Q Bitt llJe're hitting them twice as often! II .g :r Since 1936 when the average petroleum reserve per new field discovered. was ilipproxi~ mate-Iy ! 5 million barrels, the size of new discoveries hd~decreased steadily. In 1943 the ': average was slightly more thdn I million barrels, or about I 15th the size of the 1936 ~ discovery. But the number of new discoveries since 1936 has sharply increased ... 162 in ~ 1936.254 in 1939.348 in 1943. The target now presented for refleclion ,ei,mog.aph map ,4 through the porthole te ~ ping is 15 times smdHer but we're hitting It more than twice as often. :r wheelhouse of the U.S.S. SaratOga enrou tech~ c Constant improvement In refledion seIsmograph equipment and refinements in :::Io to Iaid one of the Jap bases in the Pacih . nique kept new discoveries on the upward trend and will map tomolfow's deeper, more prolific structures. Heiland lUagnetic equiplUent is shown next i'< to Captain John H. Cassady. U.S.N .• study Ollicii.,! ing the horizon thIough the pOIthole. u.s. Navy Photo HOUSTON HEILAND RESEARCH CORPORATION • DENVER, COLORADO J'1(':1:-t' 1l\\<01101\ (;UWJj, <"1\'<., wlWIl :w,,-wl'dni! athl'r!i~'i!'''' April 1944 April 1944 Figure 31 Figure 32 ~ ~ ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the- Journal of the Sodet}' of Ex!~JoratiHnGeophysidst-..; 2' 28 GEOPHYSICS thf: Journal of the Soddy of f<:xph)ration Geophysicicits tl ~ ...7{nnounCf:ny . The New RUSKA MAGNETOMETER A new improved Schmidt type magnetic field balance. Easy to maintain, rugged in de sign, unsurpassed in precision. TYPE V vertical field instrument, orders now being accepted. Standard sensitivity: 10 gammas per scale division. Scale range 1200 gammas. VERSATILE GRAVITY METER htremdy haM and eo.mpd.d, tnt" Vcnatd1:. Gf<'l~ltyMder l$ .:asH'I' t/) portable, In OIfC<'IS<'I<:ceu.blt to. o'Illtcmoblfe It ;$ mounted In " paHen ::r aCI car, <'Ind readings milde ;1'1 leu than ~womHItli<:! bi edend1!\g the ...CD tl'pod through th~floor, wh~Tltil .. de.~i'ed!Qc"tJon 1~r~,Il.:;h~d, 3: The North AmenCMI Gr" ...ity Meter C;Jn b~ femQu:d from the eM m a few m.nllles <'Ind transp(uted 01'1 ~ b.1t<::k-pdc1t, In i1 bO The Meter weighs only 28 pou"d~.With bll.-;k'pad arid baHerv the we'sh! i$ but 45 pounds, The meter i, temptr,ltun: compen~ilt('d,The. eurrflnt required is sufficiently low, $0 that ,\ tingle mctcrqtde battery wHI hflP the meter I,lllafhded by outsIde temperdture U~/OlJghouttit"" RUSKA dill'. Mo!Inuf;:tctl,lled In OUf own !,!bOf P!{"a~enwntion Gf..I)l'HY",(":-. when :m:;wi'.f"ing advertiser,> Houston 1, Te~a~ Plea;;e 1't1l'otion GFOJ'!{Vnc~whe!) atl~\.vcring adVt'ftis-er" July 1945 October 1945 Figure 33 Figure 34 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf Response characteristics of the National 2S ..A Amplifier ~ "'>A'MPLIFIER :J: \! fhe :"\-,, -"Il,,1 25-.\ AlnpJifil'r i~th,- n'",1r of :.'~·al~Of illtco~hl'.m.! i, r~'w,u{"h ~ dOl( noo' InOddil J.!lel lnll~t~lhMjJc '""lll"gr,'ph dJnphfiu "-\"r dl·,,,hlp,·(j ~~.. -'-~----~ ~ 1:k'-,w~L"If> 1ll,l'): fc.-.Hnrl"">, II j~n... ,dil~Jdap( ~:l\;I;~~n~:~)~:,~:!:::j~'i['~~;l~;~l \ ~l~:~~~H;~:';:,r ~::~:~~.: ~J~f~~,~.1:~.~[~~~o~I~'.:~n 111::7, p hmd" G) \ "ble high,!", ~Mid I"" -[1 l~~filtt'r~, pnmiuilll! OP(-f.J{l'"'' in ,hfti,uJr ;/ ~~;;hf;;:~~c':::>-'\':~~,~::;::~~ Hc,i~bJ,·tiIlJiIUlt./I,;mp"f1u ~ f ~ (, p"und<. !." ow, .. ," ~ o i'< '" Q.,MPANY, INC. S::::I~:'~~~H October 1945 October 1945 October 1945 Figure 35a Figure 35b Figure 35c ~ ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ ~ (I) ~ Thl' !\i.lI/un,t/ 1L-F trict!, j,\ \uffid('!H to pHI' ide a "d\)lit~ •.. ,gr,d P:lf( of tht· :\,iti(/rl.d 1";-;\ \l,; .. llIngnlph, f("'poml: \\ hi .. h i ... l"'l·llti.tI!~Illt from 1"1 and nul.-. {\\O, or duet' ()I thl"'>/,.' '1('i"monH:' 10 -,00 l~tll~.I hl _~.lfioo.d1~I" 'li"11I0111' {cP" d rIll' "'Ur\l'y. arl' u ...nl to!' l',Ldl of th l ' 2 I \\I1I(h ,1ft: 11l;l(k 011 ,'lllj)lllil'f\ I hi .. 'I .. ','!n,)IlWlt r. \\ hl~II i .. (II rhe ~'.Hil)lI.d! 1·(. ,ci ...nHII1H.((:f j" ,dl/lIi till' d~nallli(1~'I'I',\!til rhl' nHHlIlJ.!, (OI! dt" ._,d, l''\lTjll for [\h' (.tw, \\ 11h IlH :\Millll,d mI.-ill u\ul ," the 'pring 'tlPPOl{!'" Ill.\' .... j, ! 2-1 ~l'i'>fl!(Hljl'tu,'I hi'> 'li"'Ol(,ml ft-r h.t, dntn)lnagIH'Iic.d!." ,LUlllwll 'Ln~1(olll,lin'l ht"l'l1l"Pl"ii,tll: dC\'gIHd fIll' UW III "Unl'\" no Ill1id ..., It i .. o( .1l1-oH I,d UlIl'llrttdion l'\ \\ hen Ilk jJl~trum("nlrtlU'f h(, u'('\1 IW!1('.tlh ltJll f,)r {ill' du(ril,d h'flHin,d tHOlll1{itl~r11l' \\,lIir. fhi \,I'l i, lXllrri\ln,,-II~,uong in\u/;llioll ,Uld j, hlrJllt:tll.III.\ .,,",(!cd. I hl .!fld ....il1 \\i(h'{,lOd grl,lllr pln'>url' \\I(h. und'llHp.:d 1I<1l11Lt! frulll"'ll\._~of thl \li .... ()tt! dndol'ing: ,Ill,' k,lk,lgl'. 'I Iw Ch,ILK1('f' JllOll1t:I,T i~.lppro:\illl.Jtd~ ,,·ighl ('~l'k, pCI' 1'(1( .. of tlw ill,{rullll'n( ,Lfl' (ill \,Ulli' ...n'f)lld. II" d,ul1ping, \\hidl ',('mird.\" del- dlO'>l lit till ;\;,l(iOIl,d ! 2·F '>d'>1ll01lH"llT, January 1946 January 1946 Figure 36a Figure 36b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf Bdwazds Plateau THENATIONAL GEOPHYSICAL COMPANY IS MAPPING ORDOVICIANSTRUCTURE THROUGHOUT THIS REGION A typical Refraction Recordinq ob· tained on the Edwards Plateau of both Permian and Ordovician beds. ~ :z: f... '< 9. G) ~ "a ::r 1c:;. !!!. ~ ~ ::r The thick surface lonnation ot Cretaceous :::J Lamestone (Edwards Lime) has made the GEOPHYSICAL o Edwards Plateau a problem area lor the COMPANYINC. Se-ismoqraph. In lact. rnosl seismic survey. i 'AlL'" • flUS here have been unsuccessful But the ap '< plication of NATIONAL'S new technique-· plus .tandout personnel and equipmeni has resulted in SUCCESSFUL swveys. which provide conuo1 lot lonnationl as deep as the Ordovician. July 1942 Figure Yl i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf JJ GEOPHYSICS the Journal of the Society of Exploration Geophysicists GEOPHYSICS the Journal of the Society of Exploration Geophysici5ts ~ ~ tInno~ FOURREVOLUTIONARY TYPESOF MAGNETOMETERS MODEL M2-A highly sensitive instrument for all types of accurate geophysical surveys. Can be set with a sensitivity of 5 gammas. MODEL TH-A highly accurate instrument similar to the M2, but designed for 24 hour readings. Can be set with a sensitivity of 5 gammas. The above Magnetometers have AGATE KNIFE-EDGES and SAPPHIRE BEARINGS. These models have a clear scale reading and are tempera. INMULTIPLE ture compensated. THE LEE UNIVERSAL MAGNETOMETER-A reasonably priced in· As a result of advanced field equipment and im· strument which has proven by actual tests to be very sensitive prov~dinstrumentation it is now possible to re and accurate. Equipped with permanent compass. Very rugged cord, on one oscillogram, several refract~dev~nts with one charge of dynamite. With charges rang· construction. INSTANT DIRECT READINGS ARE TAKEN. ing from 20 to 100 pounds per shot it is possible to profile continuously about 20 miles in a fifty MODEL ES VERTICAL MAGNETIC FIELD BALANCE-A Magnetom· hour week. eter for quick and accurate readings. This instrument is also de· With this improved multiple refraction method it signed for DIRECT READINGS. Equipped with permanent com· is possibl~in some instances to determine the velocities, depths and dips, of certain geological pass and of rugged construction. Temperature compensated. en horizons that cannot be determined by the usual ~ ADVANTAGESOF IMPROVED refraction or reflection method. The refracted wave p~tents II MULTIPLEREFRACTIONS (World applied for) is registered on the oscillogram so that its inde More economic,,1 than the usual refledion '"' pendent character is readily discernible and the method of nnding geological ltructure'. Write for fully illustr~tedc~toio9 = interpreter can identify each event as being a cer Provides data for COfFeding velocity of tain geological horizon. In Southem Florida, for ~~ii!~~Obe!~mfo'r~~:~.surface to deepest In are.. like Edwards Plateau, Welt Okla If you hove any problems you wish solved in your Geophysical Surveys. please instance, with the aid of this accurate field data, homa, and Southern Florida, two or mOle Dep~rtment cross section profiles were constructed that gave ri~~~lr;c~'n~h~~~:~.~~:e~.eprofiled eon- write to our Reseorch in Buffelo. depths to two limestones having different veloci ... Determines velocitiel of certain intermedi· ties and another geological horizon with a very ate geological hOlilonl when it il impol sible to do 10 with ulual refradion or re much higher velocity. flection method. WOLFSONINSTRUMENTS CORPORATION OFAMERICA 412 Root Building Buffalo 2, N.Y. WOLFSONINSTRUMENTS (CANADA) LTD. ;~t:~!If~!1;~1276 Bay Street Toronto 5, Ont. OMCI ta ...... - .... LMOU.ron '-- ..... "World's Largest Manufacturers of Fine Magnetometers" Please mention GEOPHYSICSwhen answering advertisers Please mention GEOPHYSICS when answering advertisers January 1946 October 1945 Figure 39 Figure 40 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of the Society of Exploration Geophysicists (~EOPHYSICSthe Journal of the Society of Exploration Geophysicists PROMISE- \l~,,,t'\\\ltn\\ ~\\\~\\\\"t "'" ","" '0''''''.'' "oM' "",., "", ,",,.d"" '"." .""'".,' ,"•• ",", ,om"'., '" , ",.", "" "." ,~"",.,,<"" ,"', ,0' ",~'""".'="'" ",~~" • :. ,,,,, ...",., .",""".~' "'" ,.,', ~,'"'""'" "" HERBERTF. Maq netic afS VINSON \or three ye 9iGld8~ ,\£,1\0 S£,I\"'C£, COI\VOI\,\1'I01'll Zl6 £,. Co"rtl.nd 5 .... '. Vh".de1ph • '],0. V.""a. N }\ottlf,\\ )t:.t"lS'E I. DILIGENTLY PERFORMED by ""GIL ",u'''''''' Chi'" ...... , D""'" using the best of hand-picked p,l' •• d .. '" ~ equipment "and personnel. ... % 2. "COOPERATIVE" TECHNIQUE is ~ employed by our specially trained, ~ experienced operators. 9. Ii) 3. "CUSTOM ED PLANNED" field FULFILLMENT - procedure affords the maximum in i:r acreage covered production. On 3 January, 1947, Aero Service Corporation began the World's -= 4. MAGNETOMETERS are kept in first commercial high-sensitivity airborne magnetometer survey. The ~ perfect condition by careful use survey has been successfully completed, and the contract extended -I and expert repairmen. to new areas. 3:r ::I 5. COMPUTATION.METHOD is origi Aero is now contracting for additional work anywhere in the World. o nal and designed to effectively g Fully licensed by Gulf Research & Development Co. combine speed with accuracy. '< 6. "INDIVIDUALLY PERSONAL- BURKBURNETT BLDG. IZED" surveys is our way of assuring AERO SERVICE CORPORATION FORTWORTH 2, TEXAS accurate, reliable operations. 236 E. Courtland St. Philadelphia 20, Pa. Please mention GEorH\'~lCswhen answering advertiser~ October 1945 April 1947 Figure 41 Figure 42 I» ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf TOt.: Nt.:W M1\GNt.:TU' PHO.'nt.: .'011 Tln~ C~t;fH;Of~IST GEOPHYSICS the Journal of the SfJciety of Exploration (;eophY!lil-j.,t-; 21 OFF saO-BE ii WITH RADAR SPEED ECONOMY THIS 15 ~!:~!E.:.'.2~~~O!!MAGNfTlC PROFiLE FLEXIBILITY tXTJlANIOUS SURFACE INFLUENCES ARE OUT. The Fairchild :';ok Ilot> 11ldexhlg "p;ps"-th,> Jh(JTI l'erlical marks Ihn folio It' the profile. 'J1'q' d1'f' put ill/o the tape by alt are factors which ACf1:11Magnetic Survey bears no likeness to the grouoJ o ,,,II07lMI;( timer "ppro\';nlllfely ,{ mile "pdrj, .-tlld (!'~'ery magnetic survey. The Gulf Airborne Magnetometer, recommend the use of lime 4 "pip" goes ,"10 Jbe f,;p". !o}'1Uhrflllizt'd (Jm('rlls i carried high above misleading surface influences. pro RADAR for off. shore ",I/-'QQ/" the gr(I/{I/iI, thr- S/'m',m iu,/rument, the" rlltimeter surveying. duces a magnctic p!Ofil~showing only b,I[(.'-/omht/;(W i ,old ol/}t'r in.<'rllfllcl1fr. 7blll", the "pip.,' til, t','rlOIlJ CQ11- readings. irt)/ d~t'lftll/:t(' mag/ldfc jJrr,jile. Compact, rugged modern equipment operating on 'Ht MAGNETIC MAP HAS MATU'~D.The Airburnc 10,000 megacycles is Magnetometer plus the F January 1948 April 1947 Figure 43 Figure 44 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of the Society of Exploration Geopfr~sid~ts 51 1 '~ ~~,~ , d If. II't' q / j t' /" ~~~-:'ff'S/#fk P':SS~ sonobuoy-0- e~P/o"O',O" lENB I X surE ItS 0 N I U POSIT. O N PLOTTING DEPTHREUORDER ... _lr,CO\I~ pn, '- "H' , rn '.l It pln{\"\~...... til 1'1"('· .,' ""ur-'l'-' ~,'\:,~'.:;':""~"'::~L:::~~:: ___.~ ''''U(> liiv bU h~'p.'~d'Vl·l~ rqllt:d .,nj Q. l~~-' ~'''''{''''I Plea..o:-.emention GWPl!YSICS when ans';\-ering: adn~rti..~rs C Pas: a y '.j Me 8 u In? t i H D .. ' IJ :: i j April 1948 April' 1949· Figure 45 Figure 46 i Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 18 t~E()I'JrYSI('",the }dllfn,ll "i the- ":;"(It'ty l,i E'lfi(JT..ttJon (:e OJ~ • • • "Pboto- gram17letry- ... for penlltl!lf!1/, i1Jl/Jt:r JU,/i.t! /l/Jo/()gr"pbit n.'(Ord:i 0/ JllrI'ey d.lt../' ~ THE ::I: ii" 0' ~ TOPOGRAPHIC CAMERA sa. Ci) This newest of Republic services, discovered and developed by oCD men of long experience in the fields of gravity meter work, '1:J :::r thus reduces the element of human error from field operations, 1 n" via photographic recording of all instrument data for computa !!!. tion. -I The Topographic Camera is to be show" at ~ :::r the Dl'1'Jn:r Convention, April 26-29 ;:, o Photo-Gravity Mapping Means Spe~dWITH Accuracy i'< REPUBLICEXPLORATION COMPANY TULSA, OKLAHOMA Pit'.l-t' lllt'n!H,!l (;I'f!'[!\~H~IllnD .,II';\'!~lIc' :!I!\\"!II')~ Please nwnll(In GEOI>UYSICS wht'u answering ad\'crtl.-.er!> July 1947 April 1948 Figure 49 Figure 50 N ~ .... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ r~~':'";;"'i~·:.:;••:f:.. :'"" ,,' ", ". ,- fd ';'''I/IiiJ;~l1SifHIIIISlmotiIlll . , is N6P6SStr" ;;f'cc;i/1iH;/~ !Wi> l)IM£AI,s/OA/IIi! TIPAY£/;>'s'I!', IJ, -;------• .IilIC-..-----'i;;----- g' Rect'ntl ' d PIP COHpONrNrs ...... 1'" . ~c '~".for migratln .,} e:.loped loy our ' . ;tt , :a:: •b e ...,O ••• inll bori; .~pd'llO. Ihi~ ins. 0"" "·I.mo"~ ~/?£I! PNOI"II.£S in: eurved pa.h 'be~::'In a ... rtical plo,;.umrnl I." •••• •• PIM£NSIONAl !"U;:nta~f"Ou.veloci.y~:::,d on.h. a..umpl~:·o...lm" I" give.. I:: •• are .a,ity mad.r~a••• lin.,arly wit~'~.,Ihe f'ar vf';lot"ih'. _ '!''1" • "Ion orappli.. .a.h ar.. f or Iwh id,'1'.10 • . \ z = \'" + K7. 7.' , Kc 2r z Ian P = il7.!ilX tan ¢ = fj7.'/~X a ~~cos -1 ( ~~~-;;~~-~ DupU.a. vi + [",;iii) - [an' '( 1 ) order on;' o( Ihi. in •• rum. 1 • tan ¢ (urni,b.d ~~~::!:':.~.ljnfo;m:';~n10:.. ,;;",1<. prH'f:"S011 .,"',-ialghully en ::7 CD The two dimensional tt'O"UlfH hom A to 8- ;ndicom .. we.ste"ly dip; and its. continuation from 8 to C, eastetty dip _ $U9gestift9 Q reve"ol whent direction := of profiting W01i c:ho"9cd. Sil1c. the dip c:ompont'lnh obtained hUrh two.,dimen-- 5,oftol shooting ore dePt-Mont on tbe orientO:tion O'f the profite tine~misinterprdotfon ,"oJ re$oult. Oft the otMr hand. thr .. -dim..nsionol profile. 1m .It the nf'cu.sory doto- for strjke ond dip ckte,""~ 'M ..ion. ' • ss-e'. three dime ...sio,u'Il teehniqu •• pro'Vide the .... ;. /0. ACCUIlATf REVEALING 01' GEOLOGIC STRUCTURE, ~'j July 1947 July 1947 Figure 51 Figure 52 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of the Society of Exploration Geophysicists 77 ,t8 CiEOPHY;:;ICS the Journal of the Society of Exploration G('()physidsl~ When the neall-surface velocities are not constant. but qradually increase with depth. I 5.1. E. I the travel paths are segments of curves. and TYPE SD-4-E the weathering corrections must be computed accordingly ••• DUAL COIL SEISMOMETER •Q. ::z: ~ ~ We recognize that our job as Seismograph Contractors is to help our clients find oil! We cannot guarantee them the pre a sence of oil, but we do assure them that our seismic anomalies c;) represent structural conditions. We eliminate errors due to CD instrument troubles, errors in measurements, and errors in .g ~ calculations. We eliminate weathering errors due to changes • Dual coil affords increased sensitivity and reduces AC pickup to in near-surface velocities which are not always properly a minimum ': considered and we thereby preclude our clients drilling dry • Wid. base affords better plant holes on "weathering wobble". ~ • Normally supplied with natural frequency of 28 CPS. Others Are you qetting the most thorouqh interpretation possible on available your present crews? To be sure, let us make your surveys for • Cable and carrying chain lie flat on ground thus holding wind noise you. to a minimum i :::J • Ca.e has du.1 , •• 1. Cables can be replaced in field without opening o inner seal. ;g • 51(8" maximum diameter. 41//' high. 8 lb •• in weight. lJlilT" '< 3400 S. Harvard-Phone 7·7521 Prices on Reques~ Rocky Mountain Empire Division OHice Ray G. DeGood. Supervisor - TeL 829-J SOUTHWESTERNINDUSTRIAL ELECTRONIC COMPANY 620 Colorado Ave" Loveland. Colo. Custom B1.l!lt GMpnY$ica.! EqlJipment OPERATORS OF CONTRACT SEISMOGRAPH FIELD CREWS 2Ol9 Milam Shu-t Houston 6. TUiH MANUFACTURERS OF PRECISION SEISMIC lNSTRIlMENTS Plt'~I:C{'nli·nt;\)!1 {~Ul!'ll\.src","lwn '1l\~Wt'rim: adv""th-{"r'> Please mention GEOPHYSICS when answering advertisers April 1951 October 1947 Figure 53 Figure 54 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of [he Sot.::iety (,If Explutatinn (:t'()ph:";~iri,,t:; ~ "" Co) ~ Having trouble interpreting your data? Perhaps it's because your mixed rO(ll)rds flay, • 'Pick the dip this way.' where a silnple record would ally "Pick it this way" RELIABLE gets BOTH mixed and Simple &Very .. bot. ~ ~OOM- MIXED SIMPLE LETf~GIVEYOU A PERFECT RECORD RELIABLE GEOPHYSICAL CO. Glenn 1\01.l\IcGu(',kin Perry R. Love There is mer 100 years of gl:ophysical Box 1111 Corpu8 Christi, Texas t;>xpt'rif.·IH.t: ((·prt''>(;llh:J in the technical staff (If thi" (omp.:tny. This century of ex- pcricncc is availabk' to you at C"ntury CUMULATIVE INDEX t/) ::r Gcophy!oical (~orporation. of GEOPHYSICS and Other Publications CD of Society of Exploration Geophysicists ... 1931-1947 = • Irhkx to All P,l.per'i- Bv Author B}' Subjed By Volull1(· :wd Numbers • Index to All l-J,iknb Ab'itr.td<:.."d In Clt0l'hy->jcs 1~)W-l1)j7 By InvC'ntor By SUbjld By P~lteJltNumhl..'f ~.- .~;:- • 112 Pagls ()tl x qJ 2 iIHilc,>. P.lpU hound PRICE $1.50 CENTURYGEOPHYSICAL CORP. (POSTPAID IN THE UNITED STATES) TULSA, OKLAHOMA TO MEMBERS OF S.E.C. $1.00 NEW YORK HOUSTON 1 "9 Bto~d"'~¥ N"II$_hp~".... 8u'lding SOCIETY OF EXPLORATION GEOPHYSICISTS P.O. BOX 1614 TULSA I. OKLAHOMA. U.S.A. July 1948 April 1948 Figure 55 Figure 56 Ad History of Geophysical Technology 2335 GEOPHYSICS the Journal of the Society of Exploration Geophysicists 13 • DESIGN THE SOCIETY'S CREST MEMBERS OF ALL GRADES in the Society of Exploration Geophysicists are invited to compete in a contest to obtain the design of an official crest symbolizing the science of EXPLORATION GEOPHYSICS. First prize will be a paid life membership, including subscription to Geophysics, in the society. RULES OF THE CONTEST 1. Entries, to qualify, must be received at the business office of the Society of Exploration Geo physicists, Box 7248, Tulsa, 18, Oklahoma, on or before March 1, 1951. Only active, associate or student members in good standing of the Society of Exploration Geophysicists shall be eligible to enter: Current officers and members of the Standing Committee on Honors and Awards are not eligible to receive prizes. 2. Line drawings must be made with India ink on plain white paper or on tracing cloth. Lettering, if used, must be of sufficient size to be legible after reduction. Designs shall be judged on simplicity and clarity of meaning. They may be of any geometric form considered practical for use in the embel·lishment of award certificates, plaques, corporate seal or society letterhead. As a guide to the general nature of suitable designs, your attention is invited to the official crests of other societies, such as Geological Society jjf America, American Geophysical Union, American Institute of Metallurgicai Engineers, Houston Geological Society etc., or the designs used by some of the geophysical companies whose advertisements appear in Geophysics. 3. The Standing Committee on Honors and Awards shall be the sole judges. All entries shall become the property of the Society of Exploration Geophysicists and cannot be returned to con testants. In the event no design is chosen, the Society reserves the right to extend the contest. 4. Announcement of the results will be made at the 1951 annual meeting. Please mention GEOPHYSICS when answering advertisers October 1950 Figure 57 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf [S~T--EI m--E~l i PORTABLE SEISMOGRAPH UNITS GA-7 SEISM'OGRAPH AMPLIFIER The SIE portable seismograph units These cases are hardened aluminum GENERAL: The GA·7 i. an individual plug·in type amplifier. It i. the .eventh in the GA series of seismic amplifiers, and it incorporates the finest and most modern electronic have two outstanding advantages: with welded seams, unrivaled for developments. Years of practical experience and enginering "Know-How" have produced an instrument that combines maximum flexibility with ease of operation, to assure the I. They are standard, full-size in strength and lightness. They are fitted highest type of records under all shooting conditions. struments. There has been no with dowels, which make it possible AUTOMA TIC GAIN CONTROL (AGC): In each channel, • complete automatic gain con· hoi regulates the gain by means of a passive network, which does not create any control compromise with quality or per to nest.,them together securely, either surge in the amplifier signal circuit. The AGe time constants have been designed to allow strong reflected energy to stand out above formance for the sake of porta in a truck or in the field. the average record level. The AGC may be bility. made inoperative by means of a switch on To transport the instruments manual the front panel of the control unit. 2. The entire equipment is built ly, it is only necessary to disconnect INITIAL SUPPRESSION: If de.ired, the am plifier gain may be initially reduced before into light-weight, compact, the cables, fasten the water·tight the first breaks. by means of a separate circuit which can be used independently or water-tight cases. The heaviest cover on each case, and carry them in conjunction with the AGe. This feature is useful in reducing cross feed from leaky of these weighs only 55 pounds. away. cable. and in "Dressing up" the front end of a record. With the AGC turned off, the initial suppression may be set for a straight expansion type record, which can be of great assistance to the geophysicist when entering a new area, FILTER SYSTEM: A two·.ection, High.Pa .. , inductance-capacitance type filter elimi en:r nates low frequency disturbance. Frequency CD selection and the choice of one or both sec .. tions are provided by swi"lches on the front panel. A single section Low-Pass inductance~ == capacitance type filter eliminates high frequency disturbance. Its frequency may al.o be .elected from the front panel. MECHANICAL: The amplifier i. con.tructed on an anodized aluminum cha"i., and .11 components are the best that are commercially available. Hermetically sealed transformers and chokes, mica or oil-filled condensers, and vacuum.impregnated resistors and terminal boards, assure long life and trouble free performance. The transformen are designed and manufactured by SIE expr.ssly for geophy.ical u.e, SOUTHWESTERNINDUSTRIAL ELECTRONICS CO. Designers and manufac'urers of precision geophysical indrumen's 2831 Post Oak Road Houston, Texas, U.S.A. REPRESENTED IN EUROPE BY: UNOQV!ST let (ill Materiel de. Mines Societe a responsabiHte limltee .!IU c.apit.1 de: 200,000 frs. 10, Rue Auber-Pafis, 9'" Tdeph Ope,., 5h~01 AdreuI; Telegr.!lphique OloR;n-Patis-R,C. Seine 329 4678 April 1949 April 1949 Figure 58a Figure 58b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf , . ;1''; .~r:-n-X\'", ! 1\1 i \ \ ! I " \ \ jl./IX\\\ I / I I \ , '\\ \\ , \\ 1//\I! \ , / I / \ \ !!/ /; 1/ II\, ' III,. J ! \1111\ , \ \ ,. a. :J: ~ ... GAfN; 120 db (1;000,000.) Do "ot require pre-amplifiers. FItTERS: Two $ection lC for '< low- frequemy rejection; one s-edion lC for high ~reqoent:yrejection. AGe: Unusually wide ronge which prevents distortion from high input levels. HERMETIC SEAUNG: An a criticaL poris (cop i'< SOUTHWESTERNINDUSTRIAL ElECTRONIC CO. 2831 Post Oak Rood - HotJdon, Texas Ikonf;b OUke: Coigory, Aibmo. w~ Apnh iindqvkt & Co" '~tlJ,1rolU:fI'. April 1950 April 1950 Figure 59a Figure 59b t!... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf SOUTHWESTERN INDUSTRIAL ELECTRONICS CO. ~;E{)/'II\:-;1~'<"; th ...· J"urnal ,It' lltl' "I'il'it"t} nl E,p!tlratiun (;l'''IJhY''ll'b[~Il~ ~ ----~, 011 THE PIC·ll INPUT CHECKING UNIT / A convenIent and l,lse:f... 1 IUliliollry unit, the PICII is not lIeees._ uly fOf the operation of the P·II 5e:;~mograph.Tnl!: g(:opnont tnt circuits provide olI convt-l'lIcnt <:hcd {.or continuity of "II 9topho-ne linu before taking ill record. 'ndi.,.illlll,,1 pot~ntiomd(;rsate proYided for ea<:h tr4t"(; io balance out ellcfi'~{ivepower line )nterferenee. The'l! I'M ba!Mt"er$ fflll"i be turned off at wll!. Fo! tuting ....nd. ",akhill9 purposu, "n input p"tllUding sw,tch is pro ....ided ill Ofdel th"t "II tracu Mlly be fed f'om ., common geophQne Of hom tht local built-in osciliatoL The 12 h.ee PIC·I! Unit measure! 5 inches by q inehe$ by 12 inchu lind weigh.s apptQlI;i!l'hllh;ly 10 pound5, The 24 tr ....ce PIC· I I Unit 1$ $Iightly I.uger. THE 5·15 GEOPHONE WEIGHT AND DIMENSIONS: The 5-15 f1at~baseGe:ophone weighs II ounces and measures 10/811in diameter by lo/slf in height. With 1-%11spike, the S~15weighs 13 ounces. DURABILITY: Many thousands of these rugged little detectors are in adual field use, and daily they furnish proof of their excellent fieldworthiness. SENSITIVITY: The sensitivity of the 5-15 U) compares favorably with standard 'Sixe detec :r tors. When used with the P·II Seismograph, ...CD a $in91e detector per trace is standard practice. \1IJIII\THE WORDElI'GRAVITY_MEllR 3: ~ A "rue one-man gra\·it~·Ilwtt'L pasily carried, and ftn:J,lished \vith shock-mounted case for safe transporfation by jeep. boat 01' plane. W~rdenC:r~'it~~ Mders are \'P:'Y rugged" .. ELECTRICALCHARACTERISTICS: S-15 Geo ft.'quire no clarhp}l~g... are entIrely non-mag- / a))-y~ phones are available in a wide fange of imped netic ... arc quickly. s,ct up and read under ~-- conditioll. .'~~~-...... _~~~___~~. ~ ____ ...... ances and frequencies. The standard impedance ~.. ' Fifty Worden Gravity Iv1pters are now in St"i'V furnished is 200 ohms. Frequencies are available . til(' in all parts of the world. Complete informa from J 5 cps to 40 cps. tlO~on the superior ser\''ice they provide \\'ill "' . . be fu'tn.i::;hed upon r('quest. CASE TYPES: To meet individual require ments, -these detectors afe available in several UBtBmIUES~ different case arr-angements. They molY be fur ,~fiHOUSTOffffilUtAL nished with Rat base, with spike, or with special ,j'lt ", '-'f"""'~'~~_~'~~~:),"__ marine- ease. ~ 2424 BRANt\RH JAckson 5364 " HOUSTON 6, TEXAS Cable: 1I0UlAB I'ka:-t' Ilwnt I"n (~l'OI'H\ '!~<:,> ,~lh'lI :m..... ~\ crill~;' ,tfh ('rtl~\'r" October '1950 July 1950 Figure 60 Figure 61 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of the Society of Exploration Geophysicists 71 CANYON REEF IN KELLY SNYDER FIELD SCURRY COUNTY,TEXAS LOG ANALYSIS 1) W.t.,S.twr.tio"S R. ,s u"known.lnt",'pretatlon follow. paltern outlrned in h.mpl", No.9 of t~i,.eriu. R.= 72 ohm,_10" Norm.1 corrected R.= 72 ohm, - 24' l~ter~1corrected SP = _100 mv. At level A:-t=*: 1 S = 15%- See ch4rt b",fow 2) Fo,..,.tion W.t.r R.,i,tlvityR", SP =-90 10910 f..= -100 mv. ~ :a R.. = = 0.035 ohmmeter at BHT D. 3) Po .... ityp ::z:: R.=~ I F = 72;0~';S~=46 ~ p =Vt= 16.0% m = 2.1 ~ .) "Mic:roLog"* - n.. "MieroLog" i"die.I•• th. p.r", •• bl. porOll1 10".' ",",yp .. ci,.ly, 2- CORE ANALYSIS (at Ln.1 A) Ci) Average POfOS'ty: 1S.6% CD u..::~,!:..,!DH~i' ":!~,,:,/:d~!o:'::':::~'~~~ ::!.:*~ Vr Water S4turation, 16.6% o hIS ". t"f.. p'Qb~l>lyr~.~,...l,I'" it ""'0;1<..... ¥ •• lfl( • ...u ,. w,," hlololltd ...... tlu !hit .~.. f. .".1 ~(""u ~ "lOt kit ,1\."6lC 101til ... ".f ~ i'< SCHLUMBERGER WELL SURVEYING CORP, SCHLUMBERCER'S PROGRESSIVE PROGRAM OF RES~AI<:CHAND ENGINEERING PROVIDES CONSTANTLY ADYANCED SERVICES TO THE OIL INDUSTRY Please mention GEOPHYSICS when answering advertisers October 1950 October 1950 Figure 62 Figure 63 ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (~EOPH\'SH'~ {~(~oJlhr.,ki:\h tflt' ji)urnal "f tll(· "ufil'l;' IIi Exploratwl1 (;F( 11'11\ -..Il .... ;1H' J,Hlr!Ld ,d dO!' ";,\dt'l~,II E\I'!orJ.llilll (;(,qph,,~i,'i~l~ g SpecialExplosives for Geophysical Exploration For S('i~nlie~'xplornt ion nn land or ulldf'f wah'r. ~h'rcul(,!4!w~dl'vt'l· a full ~('riC',-.;of ~p(,t'i<-l!t'xpl()~ to give accuratt' I'(·eonlings undt'r t Iw var.villg conditions PH" {'OUlltprf'd h~'(ipltl cn'\vi'I. Th(·S(· t"xplo.,.ivl'S an' quidd:.-' availah!(· throullhnut Iht' oil-prodlH'illg art':ts" \\'ritt' for llallW of Iwan'sf distrihut()r" VIBROGELS· ('HAPTeN.sIX in Ihe fia.!'fillotillg.flol'Y ollhe Seol'l:h101' Oil , (IH'Si' ,;/H't"ial g~·latln,..;ar!' Ii,,· Higrwd to giv{' i\('Curat .. rt'(>iJrd:ol llnd uniform rt'!-lultl': und('r ~t·... ~'n' comli ~t'ophy~;jt'aJ\\Tid. com1l1cnHmuion thi: (Ion;; "I1928 The first of tI", In 1951 the mt·thods to be uSl·d in oil prOspt,t'tinji!; was tlut year of the 50th Annivcr'J.,ary of the dis("o"'f'r~ of su1'H'ys of V<1:ti.ltionlt in til(' f"Olrth's gr.lvi. of the Spindlt,top field, the oil industry has GELAMITE' S t.1tiunal fit"ld hy the u F(irtf.! S(I"('('/, ~Vifmin~I(J11,l)t'/aw(1re XO~l·l .91; GULf" B LOG. HOUSTON Pk,i~'!la'lll j,)!} (:\ !II'I! \ ...1\ -.., VI·11tH ,tn~\~','nn:.c,\d.\,.,t! I~j'r~ PJe,,1:--{' !lwuli,iU (:UJl'HYSICS \\ bt'!) MI!'wC'ring adn ..rt.isers April 1951 April 1951 Figure 64 Figure 65 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;r,OPlfYSIC., tilt' Journal ()f the Sonety I)f Expior'dtion (;eophY~ld"'ts (;1 ()f'I!\>!l::-' liT\' J'IlIlII,d "j tht' :-:'1J\'id~"I' E,'-plor.a.tio!l (;\'dl,h~,~ki"h '" " ~ ('HAPTEN. EIGHT in thl? Fasc;,tafh,g Storv (,I the Search far Oil % rHAP7'ER SEVE'" III the f.m:itMtlng Story of/be Sea/"dJ for Oil ~ In 1.9;18Th" .'I.',fr-""I "",II 1,.~gU\gIIIl'rh"d, (ueNI in this illl)~lt.tti(,,, of rI'c'~l'diuSin C"lif('J:',.ia in 19}1. ~ l'io-neeJ"t'd alld d.'vdC>I'H',1 h~-Cnur,ld aud M,lrnl S, hlml,· Pr"'.'tlt d,IY logs at .. re("rded "h l.!<'n~'r~!oper.ll\On~, wni~cIn L'mt~'d'it1!('~ m W1\ '\'.Hkh \1)\',] 11111.1.. '1\.\11, III hdd gr.,.-i!llett'"f H.l· ~,II!lt'!,~g. til(' I';\J, ,wd cl"pt",d dttri"g it, fir~fde("adr l!(HI\ W('f(' hid 0\11 don,>..';ro,ldl> hid, could be rC;l.(.hcd by h"<(>l11t' ~YIH)nyll"nl"the- gcm.·r:llJy h)' ,)' <'\plof.!llon SdllumJ,t'l'gec" h.HI 'with ,watch CD ln~rrul11ent.It~U\<' U1~n.'!1\~',1 rJpldl) .HId hI,' 1')\7 tIlt' tr\llk .lnti ,hl' ,unTI !ht,tl nm'ht;:;.j l)f l!lll'~of 't.HIOI1S ,H for n,'w \lil r.'~ ~ mdc~ rt)J.~h "Th;~ \"'1>~i~tllt~st'nt;.1l1l' ~!Jvmw{rr r('nd~'r("j !,!J<.ti~.~JhH1tfr> .11, 01 'r, to on tlUt were .lppro);.im-'ltciv nlt't!w(l, ",hi." in lIh'llliUtillg 'a h,ld \11(' 1()nlOll ll.l!.Jmc :::T p,'I~'uri,.! ~n"I-ll tho;> ele<:trkoll r('.~isti\il)',mil "Inng the- "- A f'l.'lNI Of Till'., l!ll1ST~Ati"t-l f (')R ,r ~ M I N\~ 5fNf ON Rf-OUlSf A PRINT OF THIS ILLUSTRATION SUITAUE FOR FRAMING WiLL BE SENT ON REQUEST i;~ PJea:-e mention Gk(If'H\SI\~" ... hen an.,,\\t'(m~ adverti:-er" ''It,{t,''t' lIlenlion III'O':-;\t., wflt'U an6wermg adw'rtist'l'!\ July 1951 October 1951 Figure 66 Figure 67 t!.... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 3<1 CI::OPIiY~lCSthe Journ:d ,)j' lilt' SOnt'IY \If E.I:pJorallon (;('uphy:--i! bh .., t CHAPTER NINE in II", Fascin4Jting Stor;~'of the SCdrch for Oil nn: REFRAC 1 JO~ SFlS~fICrEel{· lIOn I(l ~t'lHi!ilt'(ll';lp('rhy mt'am of a !i~h! ht"alll CHAPTI:R TEN jrJ fh~'Pasd1/dljlJ~ Story of tbe Sc.tl"cb for Ojl :\IQlrr: WJ.t>de\dnpe,j in (;t.'nllany ;md reduc(",\ SUPERIOR 1:\5J H L:ME?\ I A nO\; is still RI J·t [(" I 10:-": \[, b\llC t"XI~fimenlJ.lillnmi~.\. to plal"ti(c hy I .. :\{Xlltrop of r~l'lmany,I'"iTst 0'>(' 01' a. llla~l('rk('y [0 pTng:l'n_~in [;1(' !i.can h f!ll hidden tinn, "'·a ... ;nlt].It~'din I..:killrt, McCollum, Kanher wa~ the I1Htrnmf'1l1 in ~()llh\UH'li("J, III !'.fe ....ico (Jih traps, flown'I·,> a sc{"nd {." 101 ;-.; I'fj\l;'\ll) .1nd I L\\~nl.Jo~,<.'.HI,. h J 'I I 'I. The method W:l' u",d HH;(C~,flllly 'uh~\Jn"~l'b~' pn~cn( I(J n1.)l) Hurt(lJ) :\!cc(,l1\lnl and the Gulf Cua~fof 1 ""'as ,Illd LOl!i~iallJ."Re unporullt ill day (,'l'lolatioll. -, hat f:l{" In \lc:I.].o in J~24.Till' fnt'lhod W.l~Jdl1HIl·h ~·,t.lh· til fradion ((('\-I-, bt'~anwmkinj."\' III tltt, (;uif Co,lst tm is ;1,'CUr illustration shows an earty lllndd Mintrop 'mlll!- in illstnllll('l1l implo\l,'I ...~llf~ to meet spi'rilk == m(·nt. \,'h{,n n'\-OId" ,n'!(' being l1la.J(', th(' H'1l1 IIce(b for various areas"" (;\'111'1".11 C('ophysical Haps W('IC dropped 10 form a dark fO(llU. Tr('" i~b('IH'r eqllipl)(~d(0 t1l.'tt'llllill(, and jIHalt' (01\ m(~ndous~"\.phaions Wi'rl' (klOnau'd In il\dlln~ditlOn.s fanHable tl) !Lulling llt'W oil f(,;'(,l"Vt'll. So waves irllo the ('arth, A (\('t('ct(l! "' wIth three 10 Whl'fl yilll plan to eC'(plol"{> nel\' alca~;U!(! ,h-("p('r flv!' "p:lf('d OtlC mile ap.\1t ill all arr. was piafrfl lIm i/')!I", 11"1 {~('ucr;d'sf.lpahk (H'W~help )011 imnwdiatcly in I hl'\ havt" an frOl\! of the n> t'tH iahJt, find (ordin~instru" In g 1(,( 0 I d ment, aud it (10m t1l(' Gulf l't-:pll' T'li':-t:",t' In('nlioH CY'Il'll\ .,jf", \\ 11\'11 an"wt't'HI:: arher! H'f" !'kd~'·;111 j "'>i'll, '-J\ '. '.\ )"'11 January 1952 April 1952 Figure 68 Figure 69 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the Journal of the Society of Rxpioration Geophysicists 17 20 GEOPHYSICS the J ouenal of the Society of Exploration Geophysicists CRMG FERRIS HUBERT L. SCHIFLETT PROFESSIONAL DIRECTORY Geo/lh)ricirt States Exploration Company E V. MlCollum & Cll. Seismic, Gravity and Magnetic Surveys E. E. ROSAIRE 515 Thompson Bldg. JOHN H. WILSON 709 M. & M. Building P.O. BLlx 8-15 "'>, Geochemical Prospecting TULSA OKLA. Exploration Consultant HOUSTON. TEXAS SHERMAN, TEXAS SUBTERREX 740 W. :5th St. 2711 Westhdmel Road L. L. ·NETTLETON RAYMO:i\:D L. SARGENT FORT WORTH, TEXAS ·Houston 6, Texas Gr.!~lt)'MeIer Expl<)ration Cu. Magnetometer Surveys Interpretation of Gr.lvity Surveys Interprct,ltions Intcrprt"t.ltion nf Aeromagnetic Surv~'v:-, j\[ & ]1.[ B1Jg. JOSEPH L. ADLER 1)21 Niels Esperson Bldg. JOHN S. IVY HOUSTON ~,TEXAS Geologilt and Geophysicist HOl·STON, TEXAS Niels EspelSon Building Foreign Geophysical Surveys ALEXANDER WOLf Independent Ex!"lt)r~tionC)mpany HOUSTON, TEXAS PAUL H. LEDYARD CO/J,!tll.1Jl1 ill G,()/)/J)'I(f P.O. Box 13237 Houston )9, Texas St.lOdarJ Seismic Service ])nLgn .In,1 (,mqrUlIl"n Llf In,tlu:nent~ J)e\tl"pm~nt.d g<'O],),v"cal pr,),.."lure<; S£·irmfc lll/CI"/,rel.llirmr Inlerl'r(;"(.IIHln of ):("[')",,,.\] d.II.1 H. B .. PEACOCK 2~09West Berry Fort Worth, Texas c'IS Huld, SI H.)u,t"" I'). "1,>..1, W. W. NEWTON GeophyriciJt Geophyshal Service, Inc. :. 4703 \X'ddwoo,J JOHN L. BIBLE Q. 6000 lemmon Avenue SOl·THWESTERN CONSULTANTS, I~C TIDE! Ai\:DS EXPLORA no;\;' ("0. DALLAS 9. TEXAS Hi') McBaney BuilJing :::I: DALLAS 9. TEXAS S"'I'm" and Jt, SUf\e;,> on I ~nJ .ll1,\ Se~ (;',l\ TUJ SA, OK) AHO;\IA C~')rhv,,,.!)Jntnpret.IIHms ~ c, ( ~Hl\,[R~.JR ... W·e,theLmer Phone j·SRj- '< ROLAND F. BEERS HOIJSTO:-..i, TI:XAS ]. C. KARCHER The Geotechnical Corpoution 9. Geophysicist :U4 Fulton Street Q P.O. Bo!.: 101) r:. HEWITT DIX TROY, NEW YORK W ALTER D. BAIRD CD Continental Building (,eopl)) ried C')//\/I/I,IIII o 3712 Haggar Drive 'tJ DALLAS, TEXAS P.O. B01: 7166 Southern Geophysical Company ):'()! E('I C.,ld,)fnl .• Street :::r DALLAS, TEXAS PASADEi"\A -i. ("AI.IFOR;\;'JA ~ 600 Ihdey St. Fort Worth, Texas SY(.(m",( (,.-]~! RYan Pin n" LEO HORVITZ HENRY SALVJ\TORI !!. Geo~hemicalPros/leCJinx Western Geophysical Company of America S. PRESTON WEATHERBY CHJ\S. GILL MORGJ\N i Horvitz Research Laboratories 1116 Pacific Mutual Bldg. :::r Geophpicist HIl~i\hrlanl,!,: SCcu'ltJe~Bldg. :::s '523 W. 6th Street 3217 Milam -Street DALLA~. TEXAS o PORTABLE SEISMOGRAPH. Ji\:c. HOUSTON, TEXAS 105 ANGELES 14, CALIFORNIA ('entr~179(" 711 FI{()'l B~'''KBI!l(.. SAN ANTONIO~. Tlx.~~ i'< JOHN A. GILLIN E. DARRELL WILLIAMS Ll'NDBERG EXPLORATIONS LIMITED J. F. FREEL National Geophysical Company Seismic lntnp,dlllions em/Hi/lillg Geologfl/l dlld Geo/,hyrici1ts RESEARCH EXPLORATIONS, INC. 8800 Lemmon Avenue P.O. Box 468 & Eledricd ~OlR \\'e~1Gr.!) Dallas 9, Tau Lander, Wyoming H,)",UHl 1'\ Texa, Please mention GEOPHYSICS when answering advertisers Please mention GEOPHYSICS when answering advertisers January 1952 January 1952 Figure 70a Figure 70b N ! on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 22 GEOPHYSICS. the Journal of the Society of Exploration Geophysicists GEOPHYSICS the Journal of the Society of Exploration Geophysicists 23 fj t R. A. CRAIN FORT WORTH GEOPHYSICAL ARK·LA·TEX GEOPHYSICAL SOCIETY JOHN·O. GALLOWAY SOCIETY SHREVEPORT, LA. Texas SeiJmog,aph Company FORT WORTH, TEXAS (1'"",s exp;,e in Sprinx, 1952) PdroleNm Consul/an, (Terms expire in SprinR, 19j2) Panhandle Building President: L. F_ Fischer, Consultant, 232 Penn· 627 8th Avt" W. Cal,ny. Alberta PrfJident: F. O. Mortlock. Gulf Oil Corp., Box sylvania. Shreveport, La. WICHITA FALLS, TEXAS 1290, Fort Worth, Tex. Vice PreJidnrf .. F. G. Kn',Il;ht, The Oh,o OJ! Co .. Box 1129. Shrevepurt. La ViGatc~~~t;~{:ai{rb~l~g.:Wt~~~nW~~~hla/ -&~.Ilc Stcrtlary-Trtd$II'tr: \X'. W. Clark, The Carter Oil Co" Drawer 1739, Shreveport, La. SeG~~art~~~tBs:;'~41~:·l~rtL~·rt~~aT~~~dOil & Distflet Repres"nt:ltll es: Carl L Bryan. Consultant, D/Jff/Mining and Petroleum Exploration PreJidenf: Robert F. McMahon Weiss Geophysical Corporation V,ce pfeJident: Kenneth W. Hemm States Exploralion Company 149 Broadway, New York 6, N.Y. Vice PreJldO/t. RichJrJ C johns,lO Surefary: Jack H. Cannon T"asMrer .. Melvin E. Putnam Seismic, Gravity and Magnetic Surveys 902·904, Mutual Buildings Secretary-TreaJu'ef: George E. Tarbox Commissioner Strf'et FacM/ly Sponsor-H. E. Stommel 709 M. & M. Building P. D, Box 8~~ . Johannesburg, South Afrjca HOUSTON, TEXAS SHERMAN, TEXAS Weiss Ge0'ti:;~~lu~t~~ridji~~of Canada Calgary, Alberta, Canada DENVER GEOPHYSICAL SOCIETY PERMIAN BASIN GEOPHYSICAL SOCIETY MANHART. MILLISON & BEEBE P,el/dent: Robert Paterson. The Carter Oil Co., Petroleum Exploration Consultants Box 120 Denver. MIDLAND. TEXAS E. F. BLAKE (Terms txpire Fall, 1951) Domestic and Foreign V/{e Preudent: j. C. Holhster, B~ S. York St .. Southern Geophysical Company Oenver. Pruident:. E. L. Mount, Continental Oil Co., Box Geology T. A. Manhart Secretary. Treasure, : R. L Kretl. Bell Petroleum 431, MIdland, Tex. 216 North Big Spring Geophysics Clark Millisnn Co .. 201 Continental OIl Bldg., Denver. Suomi Vic, President: C. Newton Page, Honolulu Management B. W. Beebe MIDLAND, TEXAS Dlitrh-t Repr£Jentaf;r)e: j. D. Divelbi,s. Sun Oil Oil Corp., Box 1391, Midland, Tex. Phil tower Building Co., Box 1798, Denver. Secrttar,: Lou G. Cornish. Seismograph Service TIlLSA, OKLAHOMA Corp., Box 182'. Midland, Tex. Monthly meetings in the Petroleum Club on call of the president. Tr3itc~:',~04ARi~l~i~Mrita~l¥~~.AssO(iated GEOPHYSICAL SOCIETIES tn~ CAI-CADIAN SOCIETY OF EXPLORA· GEOPHYSICAL SOCIETY OF TULSA TION GEOPHYSICISTS TULSA, OKLAHOMA DALLAS GEOPHYSICAL SOCIETY •.. Calgary, Alta., Canada EUROPEAN ASSOCIATION OF :;: (Terms ,xpir, in SprinJ{, 19j2) DALLAS. TEXAS EXPLORATION GEOPHYSICISTS PrniJ",t: R. W. Gemmer, The Carter Oil Co. Preridenl C. M. Moore, jr., Ge'lphy~icalService Box 801, Tulsa 2, Okla. PrfJidenl: J. P. Woods. The AtlantIC Refg. Co., Box 2819. Inc, "06-<)th Ave. West First Vk, Prelld,nt: Craig Ferri.~,E. V. McCollum Temporary Chairman of COMncit: B. Baars, Ba Ilc Co. 515 Thompson Bid,.., Tulsa 3, Okla. FirJ/ Vict PrfJit/nlt: Milton B. Dobrin, Magn SEG HOUSTON SECTION PACIFIC COAST SECTION SOCIETY OF GEOPHYSICAL SOCIETY OF SAINT HQUSTON. TEXAS EXPLORATION GEOPHYSICISTS LOUIS UNIVERSITY SOUTH TEXAS GEOPHYSICAL President: Wallace L. Matjasic, Honolulu. Oil (Terms txpir, in SprinR, 19j2) ST. LOUIS 8, MISSOURI SOCIETY Vi~,oP~;JfJ/nJSN~!~h,;~S6fJt~·oR:b!~~II::&:I~fSkj, Prnident:.Francis X. Mara, 32' Ewing Ave., SAN ANTONIO, TEXAS Prc~~,tni~'liag~;fB~~~~sH~U~~~e~~I-R~~phYSiCal N. Honolulu. Oil Corp., 2621 Beech St., Bakers· St. LOUIS. O. Parr, Petty Geophysical Engineer Firsl Vict Presidtnt: Eu,ltene W. Frowe, Robert H. VICt President: Herman A. Reinecke, 283' Chero PreJident: J. Vi~:I'Jr~:~~f~tSOllthern Disl.: David H. Scott, iog Co., Box 2061, San AntoniO. Ray Co., 2'00 Bolsover Rd., Houston " Tex. kee Ave., St. Louis. Se~~;"r~~T:;a;"~~r;2~a~~j~~dskr;r~un~~ggii·co.Secretary: Ottmar A. Neumann, 4H8 Virginia Vice President: MIlton Hathaway, The Atlantic SeC:r~ora~f~n,PB~;;t;f~o,J'H~~st~c~~eTe~.ulfOil of Calif., Box 613, Bakersfield. Ave., 51. loUIS. Refg. Co., 1728 Mdam Bldg. Secfttary: C. R. Wallace, The Texas Co., Box Informal Luncheon, Fridays, EI Tejon Hotel. Treasurer: Harry J. Hasenpflug, 66Ha Devon· P. E. I, Tex. Secretary-TreaJurer: Narvarte, Consultant, H32, Houston Bakersfield, and third Thursday each month Hotel shire, St. Louis. American Hosp. & LIfe Bldg. TreaJurer: W. E. Steele, Jr., Consultant, 2118 Clark, LOI Angeles. Annual Spring Mcetin~in Fa",dty Sponsor: Rev_ J. B. Macelwane, S,J. Elmer. Houston 19, Tex. Bakersfield. Annual Fall Mectin~in LO$ Angeles. Please mention GEOPHYSICS when answering advertisers . Please mention GEOPHYSICS when answering advertisers January 1952 January 1952 Figure 70c Figure 70d on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 1, (~EOPfn'SICSthe Journal of the Society of Exploration Geophy-sidsfs t ;FOPHy:-:.IC:-; lite Journal 01 tilt' .':l!df'!Y (,f Explunl!ilHl (;e()phy~id"t!'. u RADIOSHACK IS THE EXCLUSIVED (see map) FOR AMPEXDATA RECORDERS IMMEDIATE DELIVERY fromstodt on all Ampex "300" and "400" series broadcastrecorlklrs. t ::E: f ~ 2- Ii) .g• APPLICATIONS :r ~ PEX e~ploslons, .;. Recordmgof shock waves, geophys!cal data low-nUTTER MODEl 500 and other phenomenaof a highly tr ~,r~!(Jj) 10 ,j,O,nOO ",,·'1'''0; M"30 ip"-. "~,If,", /)'>r" 1- fI/3,~C • SJC;'\AL·TO·~Ol:-'ERATIO: weB ,\'\lI'FX f'.\.F( TRH.' '- URPoRAT[OJ'.: ah(I'\'e 40 db. at 1111'l":{, lwrmonic di~lor~ RADIO SHACK MA(;;-";f."IJ( RtCORDFRS lion If'yel~1IH"1"ur~11 ill 1:1''';-. hand· CORPORATION widths" 167 Woshington St., Boston 8, Mos~. • fOUl{ CHA~l\ET$:three rO!"data re PlcaM: mentlQll GEm"!n :-'1\,:5whrn answnillg advertisers l'lt>a:-f ))ll'ntl January 1953 April 1953 Figure 71 Figure 72 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ..., (;E(lf'lfVSIt,'S tht" J,)l!ru;1I !)i the Sodrty of Expltwarn.w Gel'\phy"ki~u h01N to RE-SHOOT ~ ~ .... a key point 1.!\.;~ ~1).:/~'"F. {after the seismograph crew has gone hamel ·ti'~· ..'if I'~ow.....Ifh new e)l;plofot1on site might havt, been lop,-' RC(01der (opltnt'$ the entire geQ them bad; \(l exocHy Ihe $Ome lope bad to on osciHogroph, b(> d1o!1ged, (:h(1nnd~can be ffOnsPOs(j-d, and ion-gitudinQI Of !o/{'n:'ll :!:{oit' '(on b() C'xpandC'd or conhoi:ted tope can ol"()- bt~sJow('d -down jo ma~eQccl)rafe v!s-vol Or'! 0: s-ens(tive put in ioop form, !ap(~tao be- scanned A.. techniques- Improve, mog" even morc mft'Hmal'lon yoors (Jfl~1' MOgf1t'~tif:!QP~)r(;'l.ords more information, more complete IV. and in more venotillt' eledrical form than othel method. It has ()j") jmpo;f(')nt place m tho future of A,;d 111 technology, Arr'pe" c,,,p,,,ol'Oil 3 th¢ best !n fVl'ther 'nformotlon, write "_~.A=.:.t.LJ~--...... :ren CD~ Tlw $!E MR·4 MagnetIc RNorde-r h('rolds thp THE AMPEX 306·14 MAGNETIC TAPE RECORDER n('we~tadvonce In sc'~micfcchni'1ve~ outomot,c ,';~ = r~(.;:\fdJl'\9of 13 ;:;~Oph(",,!~pha t\l¥1lilt!il'lflllljW!fllj dafo·rt:,·dvct,ofl W,th sel'>I'1'1IC informot,on transloted as cllnvent,anol 5yslC'1'nS AClvaily, the MR 4 in to ,>if'O' ,col ~19nols(In<1 p,~rman~'nllysfort.~d 01\ n'ony r{'~pects,les~complex. The magnetic tape con (nagn.}t!c (1 new inlf~(pn'lingmedium ;5 opel"' be loaded or r!'moved in Ip~!.than 10 5econds. One • R<')"u:I(l:hnnd $'9noh 11'1 el{,<./I\,;o! )0 the 9{'ophY~lCi~1Records may bp opcro!inp control ;~u~(~d for H'cordiP() or playback tokpn at charof' d"'plhs 01 the same "hot· fvn("on~.Tht' MR d w,th Dlrect·Viewer (optio"ol) and th" ,;Io(f'd informalion inleqrot('d eledri pn~'i-('nl"the 'E'cord for irnmediolp vi{'wing on a ~ l<.;gq{'d, d"o,;>- or "f'riE'~of record~ fr(lill d,ff, fluoff'$(cnt SCfP(,n _ .. thus establj·,hing the useful· lo(a!;on~LOll be (onlp(,c,it('d ('Ind ne~$of the record~at the field locotion. It,on pr(>51'!"t~don CHlf' r0(ord. The ca.-nb·lna- Wide-Range, low Dhlor~,on,Operating Sin1 'ion, or(' and Ih(' adv('nl of 0 proc- pl'city, ond f'xfremely low Noi~c·l('v,'1ore amO!"lq :\\~:p>rEX flcat f,eld MR-4, op(>n<; thi,; whole f;,,!d Ih(' oUhlonding (horaclen~,tk!>of the MR-4 Magnetic of doto-redu{!ion Inff'rprelotiol' to th ... Indv~lry Recorder dt'~ignt:>dto mCt,t th y,,1 th~~(''lvipment offerod by SIE for thf> PN n""lll~of the 5ei:smic Indusfry by c· of ~eismir.;informotion provides fhl'> leading Monvfoclurf'r of Explon1tion Seismograph A MI'I!.X CORPORATION operation orF:! famous cl.'pendability Sy<;tt'm~." )\.~cH .....nTrJ;( SIRE!'T ~ InJ)\I\>'oon ctTY, CAfJFOUNIA Freqvc:ncy Range - DC fa 500 CPS • Noise ievel -- down 56 db from one- v-oft • Distortion --less thon J% • Record iength --5 to 5') seconds. Tope Speed--l'l in/sec. Chonnds--28 indvding timing Power Source '2 volts DC • Oimensions- 19)5 x J9 J e x 14' •• Weigh1 - TJ5 pounds (with Viewer) Plett.,"t' meutin!l G:I-.(fl'J-n·l.'h·~(wlwn "n,"werinu: :Hhtlrli~'r"' July 1954 Figure 74 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;E()PH\"~ICStil(' JI'Ul'l1at (1£ (he Sllelt'ty of E,-ploration C(~(lphy...;!d;-.!"07 lJ:\ nJ~ U'S ;\1)\';\:\(: I, n It r S [All(: II counts jor you in exploration UJork ,.,Iem, 'I-:nJnph,I<'<:1 J/JlH;¥,ahY/ :\li~(;N]~'l"'IC_;~"'",-\'I:>I~ ~JI;f,/ld,Y'~Nlalh' I~]';('()I{I)I~{; Ca{l~'\"S Jor the OIL I~DCSTn""\' lJackrd by two years oj contilluous field experience t 'nik'(j',., m a tdj)(' H-'c(lnling and 1'1.1)hack "y~tCJl1ba~n-j on mort.' than lO.nOO man··hl1urs of r.:,.,c,j,~'hand d\,'\ch1rrncnl In Coited's bbor.llOrlt' ..... and pn'\-.:d b~tHnrc lh~m ~ .•.·.·l.. ~~l!'4 J ili.1i " .. tl.~(\;'l'ar!-. (If r('mtinu('u~Ikld njX"ricnu.:: Hi,'te f(>r j)j'S(ripli\c ifnl(hun', ::t 71 . au Ope!"!,; irl(u:(e-s1.lible A(e"$ To This Widel.,. iii' Acc<'ph·d MU9neli( Stor09" Tedlniqut;" o ~ .':1 Hill':'·.·I;~t. u':' •.. ~EI-"'11fRlfOHnl't. ".-..TR\ 01- \HV\'d~En1)1-:"')(;' I "I·'''''' 2- inll .Ii/rlfl Ii II ,-fli I'll ('i~.;(JI,/)r(l!11I1 fl(' [Uf'l 'f ('{Jl'd:n!f4f!!aY}lf(ch .~'US'III/ Ii) CD .g \In P()~' :::T 1 ~ UNITE]) ~ :::T ~ o ~~1f,/(;~/'~/r'q/7' pIli",) i'< SEISMOGRAPH. GRA,'IW,[i:r. ;'G~E1(1 P.O BOX M, 1100 SOUTH MARENGO AVENUE PASADENA 1 S, CALIFORNIA 1544 Coll/o,",,;) Slc':-<,I, DENVU " COLORADO 1, .. [, (; 1 f' ~ 1 N (; () N II '. r fi U !" I t; \~A Ij (; r l r S (: I, ! ! I {1 r.: >j I " 1430 North Ria Awe""e. HOUSTON HXAS 531 I',ghlh Avenu(' We.l. CALGARY, AlaUTA (ANADA ,11.1'(1110.00 lOSS, CARACAS, VENEZUELA R"o U'''9UQiQI'l0 J 18.9° Andor, RIO OE JANEIRO BRAZil i'k:c'w mention t;1 O!'I\\ ~J(s v.'hen au"wering a,!vl"rtis\'r" '" October 1954 Figure 75 ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;EOPHVSf{':O; the Journal (If tht' Society I)f Exploration G(>!}phy~i6~ts N i lOWto developthe best Magnetic Recording Movable heads are now available on the Ampex Magnetic Tape Drum Recorder. Combined with other magnetic tape odvantages, ~ they provide new scope to the geophysical rnag~1 group that is seeking better techniques. selting of the channels, template$ con are rotating be used. Various mechanical or elec trical controls can be adapted to around the world move the heads. Ampex olfers you 'he mo" ex ma9neOlSCS are operating as production equipment perience in magnetic recording from Aluk .. to Africa, from Arabia to Australia. Field tests are history. Both truck and marine mount.d m.gn.~ Ampex's Model 700 Seismic Drum Re. DISCS ;ar. paying off with unprecedented pro- corder is already in use by monr duction ... with "'aximum usable seismic dda from minimum recordings. maior oil and exploration companies. Development of these recorders. drew magneOISCS mean moreDATA on Ampex's experience in designing Time (orrections between chan Ilo\l~ton]\',hnll'.11 Labo[,lt()ri['<' j~tflt' !ir~tto d..:· hundreds of models ond modificalians nels can increase the nismic in" for various other insfrumentation uses formation obtained. (including early scisr.1lc recorders). o:\idl' Movable heads can correct for the {)\l'r ;1 weathered loyer, for stepout, or for Trddvn:w1l'd m.l;.:.ncDhC, I fTC.:- ~\'q(In i" the other foctors. Then large numbers of m.o-t \er,>J.tilc m";~nseH ..r de\ 1"':'''.1 l(;r Hyordio?; channels can be mixed to concel seis the IIll! sei ....mic ire(junKY ~toring.;Jod mic noise- and strengthen the reflec~ thi" inforrn,HlOII .11 ()nlv the fions. Also, various correlotion. tech otTa.... tllne importall! .l~hatHap.::~over exi;.ting sptern: niques become feasible and useful. T;'~d.. cu Uf):li~wlf9J"""~ Mod...mJ~W*~; {,rokl Clp,KU' --- jl'li ;'~"';;"\HOUSTON TECHNICAL LABORATORIES '? ..'" '*.. ,-1 ..~ .. 2-424 BFlAN,o.RO • HOUSTON 6. TEXAS, • c,o.BL-E' HaUL-AB ...~r~! 1~,.1" " USA 934- CHARTER STREET REDWOOD CITY, CALIFORNIA DI$TltlIlUTORS· PJl'aio{' nWllti"n (;rt'''tIY~I(~\\!lI'Tl ~h:'WNinv: MtVNti:-t'I~ $«wlltw,"f."" Ena'".~ri"9'- I:qlilj)", .."I. DoU October 1955 October 1955 Figure 77 Figure 78 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYstt LORAC--- its purpose and principle (a!Jove)Model 241 Gimbal Mounted Seismometer ~ A lightweight. in-line detector for offshoreoperations % The j'u"'p');e ()f Lor,1( is fO provide an <'.(curare ,md Therefore to obtain a Ex at point P, three trans This unit is only 8" 10-09 and 2 1/." 0.0. It weighs only 5 "h Ibs., yet it coon.-oiem m{"3OSvf eSt,lb1Jshmg-p()siuon, A mitters arc required providtng tWO hyperbolas whose has all the features of larger unils. Gimbal action is accomplished through ~ not on vIsibilIty, or on the use short- intersection locares the exaCt point in question. the use of heavy~dutyprecision, pre-loaded ball bearings. Ex:cenive move ~ '''f/)-''''''','''''-'r,Hllo waves, The toruc ph.1sc-meters indICate position to 1/100 pan of the sPJcing between twO hyperbolic lines ment of the Gimbal element is limited by the presence of special damping ,:.! Lnrde IS the de-r<:rmm:ltlon 2- (ailed "lanes" which are separated on the base· line Ruid. The end threads fh the standard Vector Mode! 5210 bell and nut. at a point P wHh respcct to three Q by a distance cqual to 1 i the w;,\ve len,§,'th of tl-.e k,w frequency radII) transmme.s. CD rfilosmmcd (('ntjnuous·~-aveslpoals o This is ;t(complisbed by phJ~e-me!erswhich indio Thus an au:uracy of tIM /)r -nU'!JtIJ 2<5 feet is (rit!Jt) Model241-53 Marsh Seismometer ::r cate indirectly the d:,'lercl1u in dist,mce between the possible on rhe basc-line bctwct-n the transmitters An elttremely small and light weight instrument, weight 20 ounces, ~dle " point P :md tWO fixed lanJ"base rransminf[s such as of the Guii Coast LOf.lC Dt'tworks.lO 1 1%" 0.0. X 6" long, the Model 741-53 w-as designed to be used either T andT2;. orT~anJT$. c;' t This accurac.y J('creas{:s $0mc\.... bat out fa sea due in swomp, marsh Dr adjocent land areas. to th(' LIOC cXpaOSJotL Ho\',('\'cr, for di~[ancesup to !!. points \\hose d/~'ercr.cehI du/ance to the transmitters 100 mlies ('if"shot{-, the p()slttrming accmaC}" of Lor,K Due to its light weight and slim sin this unique seismometer now makes it is the same, This series of points (P, P", etc.) lie is m0re cilan ~uffiC!enrror all typ<:s of ,p:eophysical pou.lbte to use multiple plants and hence obtain uSCIble records in certain on a h~:p(:"rboliccurve. opcrJ.tions. i previously considered Nt (no record) swamp and mauh areos. ::s ~ r~r.... n ...... ,,'b in "p .. ,oH,,~~",~.':~g "" '"'''' fro", off In~c"o,t 01 F'~~pcrl.rex, .. , t .. Co'liou ~"y.l"~i,;<>~,, o write or call us TODA Y lor complete information i'< '~"--~~:,s.~~i~~~." Plt'asc mt'nli"n Gnll'll\'~1(""Yo-hen an!i.wt'ring advertIser.,> October 1953 January 1954 Figure 79 Figure 80 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf tJ g: THE TECHNICAL INSTRUMENT COMPANY MODel 321 PRESSURE GEO PHONE_ A NEW DIMENSION IN SEISMIC DETECTION For Improved Water and Mcrrsh Work 5) Mechanlcol strength cnd stobtlity--Com. The Model 321 Pressure Geophone pletely waler-proofed and coupled to sea by 1) High signal-Io-noise. ---Uses seU.generofing rubber cming and protected mechonicaHy by piezoelectric (eromie element, A true pressure bras$ housing. Coq be used at any reasonable phone. Not offectE-'d by wot(>r molion or depth where seismic exploration work will be 5.imilar spuriou~519001:;, conducted (/) 2- CompOdnt\B lp$S thon 4'~1')(2 ' 4" less 6) Conventlonol response- Designed to hove :r !>pikE' cnd coupling response curve and charoc.terlsli(~similar to III 3\ LI911II1"S5 Approximafely 2 Ibs. including conventional 30 CPS dynamic phone. .. :-pikc, prot('CIIVe housing and coupling. 7 I Provcr! re5ulf~Have' alrcody provided 4\ Fle;'Clbil,ty Designed to be used in wolN, good u~obletraces in areas previously can· == either hanging or toped, or in !.ott marsh, sldered non-record or poor record areas 1J5ing w;t~only a ~crewdriv€'rrequired as tool Ou', other phones put Impedance and other chordcteri~ticsThe bO$IC 321 deSign permits the use of mul. chosen for usc in cny combination of units tiple e!emenl~in 0 ~inglehousing for added per trace. output If desired. WE KNOW WHERE YOU'RE GOING At sea our crews, using the full measure of their expe .. rience, are backed up by our modern equipment and the most advanced electronic procedures for navigation and piloting. The many years of off~shoreexperience which they have logged is matched by the caliber of men who interpret and review your data On the shore. We are today presenting our dients with clear, accurate, and complete dota on which they can ba,e their de .. cisions. We should like to send Yf)U a complete resume of our off~shoreexperience along with a description of our ships and Advanced techniques. ADVANCED EXPLORATION COMPANY, 3732 Westheimer Road, Houston, Texas October 1955 July 1954 Figure 81 Figure 82 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf la';Ol'HYSH'::) die Juurual ot the ~\ldttyof j·:.\plclfu.!iml Ge-ophysil.:ists 62 GEOPHYSICS, JANUARY, 1957 ANNOUNCING ••• A MAJOR NEW, GEOPHYSICAL ADVANCE /~.. THE ~- M'AR11:NB S'ONJ"O,pa~ " i1"'~ifit.~j/'~l;..~"'''e:,~Vfj!ilitr;,'.';;~"\.1'i'i;;l\"$;j;'Fi~.'"'' ,"I- . - D(·~"I<'P<,JbtlM"J;..oI"'l"i"'I,,,,,,C()"'I"'''!1 .. ,to see beneath , "'.... 'I • the bottom! Gej)phy~khtsalLd founuati\lll t;'ngill~'I'"wm l ing ill.Uashur~··watl'rsnow ha\e anotlu_'r tcd\ ~ njqu(' ac('umcy. Costin" a fn:.clinn of walt'rbornc ~ei~, ~ Check dependableDuPont m.c work, ,l ~t,trJllt'SU!lnprolw SutH'Y l'llli pen these productsfor offshorework etr.lf\' a~mu(h a~H){) to 200 h.':C"tb('!leath the 9- W,\ ho{1om nNITRAMON"HWW_-"f'>l:<:I.I!!~dt,·... igncd 1'1)r ojf· .. St'(lO!-\VOun,j Of a ti~lIfe-·8 G') USE OF THII; IN.-rIlUII!I!/1/T IS tJ.eofolMI!NIDt:D. ~hl)fC-\\or\..., l! I:' til.: ~.t!\.",thl-t-';llOL!: a\!,-'nt ,-'\cr to .100 re('I. And a nc\\ nvlnn • for reconnaissance mapping before seismic \.·oml;ic-r~·ia!bld~t all,l\" ... all-v-,c-alh.:r H"C \uthoul wo(jo; tS begun. .g th..: • To complement the s!.!tSm,c work. • FOf ru.nnmg profiles between core holes. :r ON L'"AND OR OFFSHOR-I--\\!wn:,.:f )(111 work • To reveal ttght foldtOg cond.tlons unsuspected nd Oll_lJU .vont !'I--ci<;mi..: rrO(hlt.:ts by the seismograph. ': l'\.\.:dk'nt f~rti.lnmllKc.I·or t,'om~ • To rellea! rock outcrops where coring can be done ,rr m"l thl.;"'-' plodIlCI<,., or for tc ..:h ~ \\atl'rpnl\llc\! • As a primary tool for detailed mapping of , \vW, 11 1:-. a"";I..,tanct,' 011 any st1..Mtjn~crohkm, "peak suo bottom sedlment$. ~our lhdl an~1..,hlHdd be- ,kto- HI thl.' Du P\lIlt Tq'rt..''',.:lltatl~ein "l.rc.1. or • Whereller accurate depth WQ.k i$ needed. \\ntc: I. t. dll Pont de Nc-lllour~& Co. (lnc.), ~ Dc-ranillent. "V jlmin~ton9l\, Oela~ 1W :r -r ML ,- :::J 555 ILECTRIC BLASTING CAPS .-- out..,e!! n.. :al<..',,1 -, o , •. \fOIII' 1'l'll\fw/(f'. rh.:y X(J!(;(Wlll1'lblctar/Wail i lmd corM/ructIon rndustrit'~throl/gh ~11ur<..·omenjcn,:;:. DlIl~kx '< lOS ANQEL[S}5, 224 E.,I [l .. "enth Street NEW YORK 2\), J() R<>~"~r.llcrPlaza ~ C1HUIHI • UUflTA • lOlie fSUMII cln • UUUASut •• OSTOM SHHflul.WA$HIN1i.TON· ctNtVA .IRUSliU$· ...MlIa1l:A·V ... IICOlJV£!t *£"G.U.I.PAT.lOlr... TClIOlilO • IIUAIU. • GtlATfJoIAUC1H' 10corA. CAIl",C*" ~lMA --H.~/!£-I!!~!?IIOlIl.lA/tEI_O·f.U!IIOSAUIU·UM-T1A,O PRODUCTS BettER THINGS FOR.' 8En'lR LIVING ••• fHltOUGH CHEM/S7IIY Plea;'.t' l1Wnll')I1 (;fOt'!l''''H'-... \\llI'fl :lll,,-\\eriUf! ;illn'rll"t'rS Please mention GJi:OPlIYSICS when answering advertisers April 1956 January 1957 Figure 83 Figure 84 ~... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf CEOPl-lVSKS Ihi' J1111l"nul of ttw Sodd} of Exploration Geopny,..it'i:ots .., W ~ DEEPTHOUGHT ~ ~'"",,~'''-'''''''''' ABOUTl~l~P III(J Mtt~~, "&£(1\;\\~,~ EX,PLORAlION ..• sometllingnew in SEIS:\fIC "no/.I.. ,. '~'''"nwhy Gen., .. h "1".. ,,.01 p'''II",m "I ~q""pm~,,'""p.~~.",,,,,, h~!I'.''' .... ,'' ,~«...i,. EXPLOHATION dup~,.~pl""",."" G.. """.! I "..... u,."'c"',,!~."~.i9"w<>. ''''''I'I~u·d"I,,,, "'~~,,>I ~')<,,~01 ,,,.,,"/1< ...... h It. h~td <"'o"'~_I'I,,' A successful end proC!iC()! Oppilcohon !~"d,",, of new technique', Clf, "lnteijtot!h9. "'''''. <",,~,..,.t "'''~''''''''' p~'fc,... c" ... A "Ow pluS_i,. I.,.p~ recorder" in c)mbinatlon with 0 folLng «"'~"'t,,,,,.. h."".tluo!IV •• ,,!r<:I III ". " ."f~9.. ",,1 "II"'''U "" .. ,,'~,.,uP"9" 8~f"r.. 'h', ",<> NEWPLUG-IN TY'E 'IG TAIL EOUIPPED TO S.EJ ~~\~.~y~]/)~ L~~::~l··"'1·llf!~(,f-.i~~ u~" I>~'t..d<,,~d;.i,," ~n.t" h i" of... , I~"''''''' fitt .. d I''''''w'~.,,,,,b.. , ,""ot., ~O h",~""f ,e.H~ p,,~~d;,,'<1"~,, ,em";'" ...rnl~r 2ll' II. pre"""" "'11",;",t .M.. , ~I'n'>" ~"•• 1",]·<1011>"'''<1. GUU SLOG l'lc:l.:>e mention (jEOI'H\'",rc" wtlt'n answt:'rim; advt"rtbNf April 1954 April 1953 Figure 85 Figure 86 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~, seismic detectors How HTL 5-39 dualDAMP HOHston Tt", hni..:al Llbor,ltt'fle,; h;JS calkJ upon it~11)01'1: [h,m twenty ii\'(:- y,'.,[S (j1 CXpC!1C!KC 1!1 g<'(\p!l}~!CJlinqrumc!Jt.uion to pn' duce ~1lltinj,1tu[e ~..:i\m(il~Wt<'rth,1! is unique In dc~ign.effi, ;ent ill rtrfonnant\' ~cn~.l1iun"l]1\ jJrH..-t'. Th~ S-)9 I"hulD-\\i"P ~{!5l!Wmt'\n employ., bot1] Ck<.-'f(>lrJ.l h O('l;L ,lnd "md ~p'k,,' {lUld ,j, __unpin,!,;. utilri.,ng dl<: ,Ie! il'\€h,,~ ;"";';;'$ ;antagl'~of ~ BTL 5-36 Gild 5-36 U ft, Detectors· < ·''''''''10P'.s».. With the Vedor Split Spring Coble Tokeo",! ond C-5 "Golor" Geophon", Clip, it '$no longer a Me-cess-ory for geophysical crews 10 w05te va\>joble fieid I,me mob.,!;! geophone <;o!mec· Ii) tlons, The~enew Vector developments were des1gr",d no! only to oTIi,,;mt~eCO$!!Y f;,..ld moinfenol'cc but obo 10 ',"sis! opero'or~"., obl'li,.,ing more oc;,;"rot(" '$'cord~Their pol N,led <::onslrudion oHer$ I;omp!ete re~iston(eto mols!.,re, pO~;ljvepolarity id",n!ifa:otion and I:z freedom from breakoge t,md s.\Jb~equentfield rep"i .. Corrlf'sponding slo15 of different size SP!ClfICATtONS ~ on b01n the lokeout 0 .....;:1 qeophone dip prodkoHy ei;mmofe Ihe pO$slbiHty of (:Hor i!'! mok. $..36 Detector- iog qvkk conne<:tions. The~eimporlo'll feo/ures, combmed with other proved morwfacruf< W-f>isht 17 pOl,lndt [ t«hn;que~. ,on~tant ~j... lng ore the r!'svh of rf'seorch and engtneerin9 dy at Ve<:t-or to equ,p H.,ight 17 lf1d~~~ DiQmet~( the geophy",ca! ,ndv~frywith better toob Vcdo~ now, Q~ always. manvfCldure~ONLY 3 inch!!) NQhm::iI f'r.. qu~m"y 2 "-P' geophysical cables ond coble- {:,,;,es50de-~"A~ 0 rewll, ovr ('nl"", eHorT!> are devoted to Coil Res.i$tonce .4000 (>hm~ ~ setting new stondacd~of reliable. t'me·saving eqv'pmenl and pro'nding 01' vf';ntern;pled Int.mal R,uisf"", 15 K :z (Ih.q"lr.. s 10"1( E-..;t~rnolR'il}i~l",r for domp'''9 $vpply 01 reo.onable pr!ce~lor the geophysical indu!.-fr'!, .5 "rilkol) :::Jo Wrile todoy for ovr '010!09 which describes the e-n)lre Vo~tornne. $.-36 U Det.cor Coil Re$lst .MANUFACTURING COMPANY 5616 lAWNDAlE HOUSTON 2<1, TEXAS =l> ~,~u:c:ttJ¢,At.,~Hf.:t'A~b ¢~.,t.U: 1: I·M"~~~.;;;.:o:~,~.~I,~~"~BO,:~:~S April 1954 January 1956 Figure ffl Figure 88 I\) 5 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;H,pHY:-,H~,APR1L J',I,;; (;[WPH\,Sll::-, ,PRl!', 19;7 " ~ ~ ~ (/) :::r Formaximum economy in shaHowhole patterns ..ID iii OTHER DU PONT SEISMIC PRODUCTS sss- Electric Blasting Caps-Have every thing n('(>(h.·d for nftsho1'E' or land work: ac DUPONT SEISMEX PW "Nitramon" S--Safps.t hlasting agent cvpr curacy ... dC'lwndaliHity ... static: resist made. Cannot h~'(it·tonah,d bv flamp, shock, nnet'", Avaitahlf' with duplt_'x or two Ringlt' ShaIJow hol(> shooting ttikl's 0101"(' pxplo- much IOWN p('r pound cost. It is avail rif1t~bulh,tl", or ~tandardhlastinp; cap~.It is win;.s ... spool, wound or a figUTf"-8 fold ..• h'ngths up to 400'. Nylon-plastic insulation 8iV('S ... hut it seldom ('osts at1.V more abll' in a ("(lInpipt(, rnn$W of size's so that d.:'tonatf' l'\ea.:.c mCnti'llI (;I'~~)l'rl·.,..J'"~\!H'n:lm.\H:ring :'\.d\"{'lfi~(':·~ Plea...<;emention C}.Ol'HV"1('S \\ht'!l ans-,-..-ering a.dvt'rtLset's April 1957 April 1957 Figure 89a Figure 89b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 52 GEOPHYSICS the Jotlrnal of the Sr,ci('ty of E"p1ortltion Ceoph:y"ldstt: 55 GEOPHVSICS the Juurnal -"; , .;,["I '1 For fast, thorough large area surveys, ':'.'ff il; use the \; '.,,~I;J·h.' i. 2·CYCLE refraction system especially designed for refradion work by HTL The new HnUSflHl Tedln;(~t!Laboratories VLF (very low frc(luen(~-)~cismitrefraction :-.ysrern is. t:spt"cjJ.llr useful in arC~lSunwotkahlc- with tilt" retit.-nion mcthoJ. The VLF re~ fr:I(tinn s~~tt,:mtaIl be lIsed in p<:trolcum 1:xploration, min- ,. ..,tlrvl'Y~,~lvil Cl1t-:inc,:ring. anJ ,ground \vaCer 10<..at10n CI. i;; c,lpahk of coyering I:u,ge an:as 9uifk1y :r \Xlirh cxccllc:nr fIC(jUt"flCYrt:-:.ponse down to one cycle on i the :cnd rn tWO J,. \'lks tm the sl.:i~momt:ter~"the o... VI F IS exceptionally vers,u-ik in appliL-;l~ '< finn. A uf high ~ur flitt.'TS provides a 2- use the HTL portable Cllt-otr Cll1gC" fnm1 H q)" t1) -'18 rps to\'/ i~cfr,l(tionwork J-f t"xff(~!ljd\' !onJ-i: f:log-cs, t:) II tor al! ~lpplkation:)ex,,-'q'( tho..;c :tt cxtrerndy small ranges. o hrc~k" 'tJ E\(dkm first have bt',,:n rcrdvtd <1t' a dis-ranG: of :::T 1rl/t" nllk~ll\ing only :1 t"lVCpound "harge. 1 seismic system to: PnnJhihrr of the n('\', VLF sr.'it-em is ;t( hieved ri" l'OmpJd " nf Ihe L~·dl:ll~ne! !!. establish necr4$urfoce mt:'.l~url''lx 1() ~'!'X H 1/1 inch('s velocity (onhol pound, Tw() Outpllt :-;ignals from carll amplifier channt:l an: recorded on ,1 :-.Llnd,lrd BTL RS·R fc(()!"ding \)S(~illi) i :::T obtain neof-u"rToce graph. \\,'1(/1 p.tptT "p<:cd adjust:lhk from :- to 16 inches per :::I sc,,(Hhl o structural dato i (ore~hole supplement '~'."'''''.»<,. '< information for Technical Bulletin No. S~303 For detailed information about the new VLF for additional information about HT'~seismic refraction system~write for Bulletin how you reliable i No. 5·308. can now make shallow ~"I'"...-+~ reflection surveys. r4lIN~'''~'' HOUSTON TECHNICAL LABORATORIES HOUSTON TECHNICAL LABORATORIES ;l424 BR,A,NARO ~ iiOUSTON 6.TEXAS. U.S,A CABL.E: HOULAB 2424 SRANARO • HOUSTON 6 TEXAS. USA. • CABLE, HOULAS .• Please mr-ntion C;L{H'HY:'lC';; when ;tns\\erin~1l(h'Ntl~r5 Plca."e mention (:EflI'I!V~W~whf"n n.n"'wl~ring adve-rtj~rs October 1954 April 1955 Figure 90 Figure 91 it on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf fi AERIAL AND GROUND EXPLORATIO~ CJ ot'l • with the linest '"0 Scintillation Detector System ever builtl :r: '"0 ~ >< CFJ..., /j\~ (') f Radioactive anomalies are accurately detected CFJ 3 " \ \\ ;- '"g I J \ \ \ and instantly recorded in the air or on the ground / J \ \ \ ...... '" 0' with the NEW DS-7 survey system. o ::I / \ ::: \ ... C'l / I \ \ ::I oto! a. ." , / \ \ \ Extremely High Sensitivity- Completely Moisture Proof ~ iII .-: / I \ \ \ 3 inch sodium iodide crystal; -circuits operate indefi- ~ ;- !') / \ \ \ 3 inch J?h,ototube;, greater nitely at 100% humidity. (f> '" I J \ \ \ than 1 mIllIon cpm In a 1 mr Maximum Flexibility-sepa- CFJo :!'l (") ::r' , J \ \ \ field. ratc? unit~easily ~daptable to ;';' '"::I I J \ \ \ Rugged Construction-all vanous installatIOns. q I" CI) ::I , J \ \ \ units thermal insulated and Low Power Consumption- ~ ::::r CD ~ I I \ \ shock mounted; Phototube only 65 watts. ~ ~ '"::J, I I \ \ \ and Crystal triple shock Light Weight-approximate- "0" :2 ag / I \ \ mounted. Iy 75 Ibs. total weight. ~ I" ~ / \ \ \ The Nuclear-Chicago Scintillation Detector System is ideal 0' ~ ::I ;+ J \ \ \ \ for airborne or ground vehicle application. Write for full ;n' J \ \ technical details with typical installation suggestions and C'l o ;;! ~ '" '" - \.... \ exploration techniques, BU__lJetin "DS-7 Explorations." "0 ::r' ~. ~ g: - -1M.@ 4f( Y huC'/eor-cl,,'cogo '" YScintillation Count Rate Ruggedized Chart DC to AC Nuclear Instrument and Chemical Corporation Detector Unit Meter Recorder Converter 233G West Erie Street, Chicago 10, Illinois ~ April 1955 Figure 92 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf SCHLUMBERGER ANNOUNCES A ---SOUNDmethod of EXAMININGYOUR WELL the long EXAMPLE, CORRELATION OF A CONTINUOUS VELOCITY LOG AND THE POROSITY OF A LIMESTONE FORMATION inter"._ .... A new method for obtaining occvrate formation velocity dota of greatly reduced cost -- <:I method which replaces the convenflonol geophonc survey. GEOPHONE ~ Use this new service and: ~, -Ii--1 :::E: AVOID - Expensive def-oys. in rig time. ~ AVOID -Loli-$. of valuable 400' velocity control on many < wells bectlvs.e of the <:ost, AVOID -Suspending the a normol operation of the c;) Seismic crew. GEOPHONE CD AVOID Drilling shot holes. ~" 'ao CIt fhe welt ",ite. -\! :r geo~ ~ AVOID -- Adopfing phones to 'Survey coble. 400' The long interval velocity -= survey is becomjng a rovtine ~ Schlumberger operation. I It is- performed by a regular TIME BREAK II logging crew in opproxi DEVICE " : ~ ~ mately the some time and :r of 0 cost in line- with normal GUNo_ U ::J 'ismogrophSqrpjcq eorporolion TULSA, OKLAHOMA, U, So A. Jogging operations. o WOlltD wtDE sOeSIO!A1HfSI i Plea~~wrilo lot udditfonul Information on fhi, odvomed 'f1chniqu't '< SCHLUMBERGER WELL SURVEYING CORP. Houston, Texos October 1955 January 1956 Figure 93 Figure 94 ~ ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf i;J.,il!'Il\<.,[C'" tWrO];!-,lC )\}'11 !8 GEOPHYSICS the Journal of the Society of Exploration Geophysicists i PIN POINT YOUR SEARCH FOR MASSIVE SULPHIDE BODIES Sharpe ELECTROMAGNETIC UNIT fOf locating electrically conducted zones • Smal!.>r vertlc:<'tl fi<'HI5m.ttCr !oop. Only 4 ft. "quare, • Col!dP1lbt.: tHpod allow, cod to be s('t up ,n minutes_ • L!ghtweight motor-generator !)!o du<;l"s 500 waH~at 1000 cydes, • Improved feG£.v~rdes'gn allows ]0 nul at 1000 ft, rdMS!?_ \~ • New dmpllfier filter~out bO qd(' hyd,o Il1.terfe[eMCe " proh'ch bat K-2 conquest call'" knes from sub-uro wedther for WORDEN portability. • Double (:ontrol,box mr.-lers chrd MODel SE-IOO both generdtO! nnd co,] output In the con(lu("st of K·2, the 'Worden Gravity MC'ter, manuf,l(,tureJ exdusiv£'ly by BTL. again • Compact paCking arrll.11gement dMd poridb.ltty permIt greo'lfi;r dolll)' prO\-c'd tif'p('ndahle anti accurat(', The Italian AI· pint' Cluh ".-hiC'h sC'.. ded K-2 (Mount Godwin (I) hafl ... erSl' m.lei:'l9!?~ Au!:'tt'n in Pakislan) in July. 1954, used a Wordell ::r Th~lSh<'ll"p(' $1->1(10 Elt'c!rolllJ.Jl,uetH: Unit ha,; '·'l\llpnU'n[. It ... !\XI()I \-t'!1 fp'lJu,-nt,' j'j int.-!)'!;'r! CD ae('lIrat~ Il IlfOVt'fl p<=rformallC(' n~cor Writefor BulletinGM-lOi covering the standard meter. or BulletinGM-202 describing the geodetic model. HOUSTON TECHNICAL LABORATORIES A suaSID1AftY 0". TEXAS INSTRUMENT$- fNCOR .. ORATIEO EXCLUSIVE U.S. DISTRIBUfORS fOR SHARPE INSfRUMENTS, LTD_ ~ 242.4 BRANARD .. HOUSTON 6. TEXAS. U.S.A. .. CABLE: HOULAa I'll'.''''· 11),'11\1"11 (;! i,!'II, ,I' " \\lwn ,ld\l"-'i'<"" Please mt'ntion GEOJ>IlYS1CSwhen answering advertisers October 1956 October 1955 Figure 95 Figure 96 Ad History of Geophysical Technology 2359 7000B Seismographs selected tor 70008 Portable Seismograph showing RS·8U camera, dynamotor, control panel, and one Internati()nal Geophysical Year bank of six amplifiers (ICY systems have four banks of six amplifiers, or 24 traces), u s. ANTARCTIC PROGRAMS GLACIOLOGISTS of the United States National formations, while the Conventional Reflection Committee recommended the "all purpose" Seismograph will supply useful deep informa seismic systems, developed by Houston Tech tion from the sub-glacial floor. All three nical Laboratories, as the best suited to ex methods will utilize the many filtering ploit seismograph techniques in glaciological variations available in the 7000B to obtain study during the IGY program. For this the optimum signal-to-noise ratio ·of desired important program, operational versatility, impulses. accurate performance, and rugged depend Since each seismic traverse party will ability were the governing criteria in equip operate as a self-sufficient unit, the low ment selection. maintenance reputation of the 7000B Seis The 7000B "all purpose" system offers mograph was also an important factor in its three seismographs in one-a frequency selection. And needless to say, these seismic range of 5-500 cps with a flip of switches. systems will be subjected to extremely ex The VLF or Refraction Seismograph included acting operating conditions in the Ant in the 7000B will be used primarily to deter arctic-conditions that will ask the most of mine the velocity variations of the seismic equipment and men. waves in the ice sheet. The HR High Resolu Houston Technical Laboratories is proud thin Reflection Seismograph will provide that under circumstances where quality accurate data on the stratigraphy and counts most, the USNC glaciologists selected structure of the glacier and near-surface 7000B Seismographs. HOUSTON TECHNICAL LABORATORIES A SUBSIDIARY OF TEXA8 INSTRUMENTS INCORPORATED a*" system 3609 BUFFALO SPEEDWAY· HOUSTON 6. TEXAS' CABLE: HOULAB Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS the J,llanal Df the Society of Kxpl,)mtion Gc,)physicists 89 GHWHY:O;[CS,tile j.)uflh.d of the So.-it'tr ot Explur:ltl'lfl (~{'11pli):>id"t:< i MIDWESTERNHASDISCONTINUED CONTRACTSEISM'OGRAPH tREWS! NOWwe will devote our efforts exclu -- sively to design, manufacture and sale of geophysical instruments ... and an exciting new equipment rental plan. : +e*s _-r 4 .a-;!...... "~ ,New,Differe-nt SeismographEquipment Rental Plan! There Are Two \'<'ays You Can RENT This Fine Equipment. o PLAN NO.1 Standard 30-da)' cancellation contract. Under this plan you can cancel your rental agreement on 30-day notice any time you like. Now, you can have the most modern equip Rent Motorized Equipment! You'll Want All Details Of ment with no capital ouday. A new Instrument Truck - any This Unique New Midwestern Plan. thing you need - is yours - quickly, easily. Midwestern seismic equipment has always been ranked among @ PLAN NO.2. Under this plan you can rent equipm:-nt for the best. It is designed by engineers with long experience in fixed periods of 12. 24 or 36 months. You need no cash, no down developing instruments for the geophysical industry. Now we payment, just a regular monthly rental. There's no need to invade (/) arc working to even improve the Midwestern instruments that your working capital. and you can pay for the service out of :- already conform to the most rigid standards set by science and monthly earnings of the crew. If you should want to purchase the .. industr\'. Best of all, now yOU can have these fine instruments equipment at the end of the contracted time, your rental fees will :i through a liberal. convcnie~tnew Rental Plan. Be sure to write apply to the purchase payment. Be sure to get complete details for complete information.------of this unusual new Midwestern Plan. WRITE Midwestern Geophysical laboratory 41 st and Sheridan Road MIDWESTERN -Tulsa, Oklahoma TODAY: - Geophysicol Laboratory Gentlemen: ~-~:Please send me completedetails on your new Seismogra~hic£qllipment - .._- RentalPlan. 41st and Sheridan Road for ~~'~)Please have your representativetall on me with completeinformation, COMPLETE Tulsa, Oklahoma =Name Firm DETAILS =Address • City. ,State • Pll'a~n~l~nt;-or: CU!I'HS~JCS 'when ano;weriw! adverti~er5 P]pa"C menti'ln GEOPHY~fCS\\'hl~n amwerin~ :vh'erti~rs July 1955 July 1955 Figure 98a Figure 98b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf l?wo(~rn 'Vc~'[;{~,c,·IIE'c ~ % MODel MRA·2 MAGNETIC RECORD ANAL YIER- for (omp/ete c;orrec;fiOfl c (:omposilmg, reprodtJc"'g, filtermg, ~ aod < 2- AAQrdm2ry Btoplllme and a 25 THE BRUSH MAGNETIC RECORD ANALYZER fo' poulldchargeproducttlthlsrec· c;) <:('ntrol laboratory or f'eld office IJse provides, 05 lt5 end ord .. NOW-the new S!E S-ZJ CD product, the VI$UO! phologrophk reCQrd of one or mol'ly field drruble output geophone can PfO duee Ille same record with as tope~-w,ththese flei<:Jble feature" .g little as 5 pound5*-sa~eas LAND OR MARSH •. '. HIGHEST SEN· • Correcting ::r much as 20 pOllndsof dynamite' SITIVITY OF" ANY- MINIATURE GEOPHONE • Compo~iting. .\11 {'J)tirel~!lew rndglwtic structure- llf:\JkH'S • Filtenng. -= ~ twie" tbt· ~CH~ltr\ityat no increase In wdgbt and • MuClt'!9 II reductlOil in C(ht Stanclald S-2-3's hav.· nat mal The MODEL MRA-l 'M,nots the constant weothering ond elevation couections. If provides "rre secllon photogwphk ~ fn·quhl(!() of 14, 18, .2J, and 28 q,s--·othcr S·2.;3'~with recofd~with the~ecornfo,,' corrections_ It composifes any ::r llrl.hlra! heqllt·lld ..s of 7 to 7"5 <-'liS are also UYiulahlt, SEE '1flS number of tapes shot With the some spread und same shot :::. EQUIPMENT hole different depth~l_A brood selection of filtering and o two types of mil(ing ore availoble, Ht;>lJl(>mbt-rthat SIE offt:"r~complete cabling alJd stringing IN OPERATION AT THE S,f.G. i ~t'niee. \\'rit<> 01 ('all tor mor(> information, The MODEL MRA-2 inserh the vOIioble stepoul corrections '< CONVENTION O~ we!! O~ the constant correction~.It provlde~ either lime IN. NEW ORI.:fANS section or depth section photogrophic records With oU cor OCT. 29. NOV. , rections inserted. II compo$it€~ony number of lope$ shot with the rome spread and ddfer€nt ~hothole locotions and CO~ SOUTHWESTERN INDUSTRIAL ELEC;TIIONICS depths .. A brood ~ele~tionof fiheri"9 Clnd two types of mixing ore ovoilable [§JT 10201 Westhelmer' P. O. Box 13058 • HOUSTOrJ 19, Texas· HOmstead 5-3471 February 1960 October 1956 Figure 99 Figure 100 ~ .... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf I\) ~ teatl,' Ihe field LEADS THE FIELD 1I'ilh Ihe latest in seivmic il1'ilrUl1J(J f1/alioll THE NEW T STRATAPRINT* SEISMIC DATA DISPLAY A complete Variable-Intensity 'IIWIU! IIIfIIISII'Y Recording and Printing Service STRATAPRINT Seismic Cross Sections display original basic seismic data in a compact and graphic form. Reflected events are plotted In mode resembling v__ sedimentary stl'atification showing true relative character and contrast. UNITED offers these Complete iinet STRATAPRINT Services • e ••••••cO':;;;;'· 1. \,IlI.lnk Intclhll) Au\dl,lf) Rt,.'I:I,p,!<:r jll\l;dkd Hl \tWlf lidd United's overall seismic data display system ...... ·I.~mt)~r"ph r!x;,rJmg !rth.J, .• md "irH\!.\I'R!"1 Scdlon I'jon~'rHl\!J.!kd I!I )\>lJr "n ....·..:. SfII8J.ESP8TlUCIS en 2. \',ll'l~bkInlCI1'lt~,\It'\IlJ:lI~R<.'u)rd':l lll"'l,dl.:d III "\llll tidd :::r '<:1'>!l1\'!!:f.lph !~'~'urd1J1gIr,)"',, ~Ind "tH,1,1 \[>ltl"!,,\ jlj,ldl/-:,,-d CD... \1:. <.;...... 11(111 I'lollCI IJl l nll~'lr'> oe,ln.',,! ~<:JlIJ .II qllil': 1Il\!.dl,I[ll)l\ him,> l'!'t),lLllc,1 b) 1 1l11l:d'~\ ,!/I.d,k- hl\l-U"\I1' Rl'<.:,'rd,'1 3. == from ~()urill.l,!!:ndl,· I,q'''''' ,till.! \\'Uf l-il'l' p!.l\ba," ~\,,!<:m, ,lIld ~JR\I\l'kl'l~ I'r'1du.:cd III (nJl~'<.r"lk"tr,',t .: ...'IlH.d 11"111111111111111111111111111111 Wr;/t;· for descripliv(' brochure.' (llIll'l' 1Il,>1.IlI,ilIUJl. 4. SIII\l \PI<"J~1'!tl(lIh:~d /tum l nlll',I', Ilhl~llcltc IJPC\ Itl (:Ilh":lr~1\1.\!! ...·,t u;lltr,1i "IIi ...'''' Ilhl.dl.1I1tlll • SEE l';"oOlTt~O'SBOOTH f'oOO.14 Set" lbh~·equipment in operation al SEC NATIOr-.Al, CO:""VEl"roTIO:"ll 8oot~No.:53 Nationar S.E.G. Meat· ...... UNITED D LLAS NOV. 11-14 lng-New Orlean" Oct 29· Nnv. 1 UNITED ~YrYJP/yJt';.«/?lt7?f'}/w/,;;// ~3;v?./yJ(~wli(a~(t/r(/t;i/I S[!SMOGIfAPH • GIIAVlIHHR . MAGIHYCM!'ltR p, 0_ sox; M. 1200 SOUTH MAIlENSO AVnmE, PASADENA]5, CAlIF0RIHA • ·r~'>lf('.,.ark.'>1lI.A1'.lr~!"'1 f.f (-1ulrmrm m4"1I!l1cIUud,.,' 1:)0 NORTH RIC[ AVE~UE,HOUSTON, TEXAS ~ 422 NORTH MAlH ST~E£T, SEISMOGRAPH· GRAV1MEH.R • MAGNETOMETER tOllllrd GNJP/lY_'k41 Corp;)''''i'''' .. lid", Unl"$(' I,.;",. TULSA. OkLAHOMA" 531 8th A~ENtlEWEST. CALGARY, ALBERTA, CANAOA • li"",./n,·!/,,,!ri<. (;,,1/ Rnra,,·" and P""th'pmrrtl Comp,my fDMONTON-REGiNA-,APARTAOOIOtlSCARACAS,VENEZUEt),_RUAURUGUAIANA PASADENA, 15. J4.l11 /OOHUi • C"LlFORNIA. RI(':E AVE. HOUSTON;, 1£I(AS 118"9'. IUO DE JANEIRO, BRAZil. 194 RUE DE II:VOll. PARIS. FRANCE 631 titb "WE. w(sr, CALGARY, ALUEHT ..... CANAOA . PHONES h9H5G &. 171$6. nH,IONTON·Il(HNA • P.o., BOX 1\1 lloo SOliTH MARENGO AVENUE • APAIITADO 11m CARACAS, VEN.EZlJELA • RU" IJRIJ(iuAIANA H8"9~ RIO Of.: JANEIRO. 8R"ZIL. 194 Rla: DE IUYOU ' PARIS, Itr. FIiA,NCf. October 1956 October 1957 Figure 101 Figure 102 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf I,LI)1'l1\-..lt' ...... (ll'll)];! I{, 6ET NEW BUSINESS. .. EXPANDYOUR SERVICES ® eM] OO~;~[?[E MAGNETIC MEDIA TRANSCRIBING SYSTEM ••• ~ :z:: ~ ~ a G') ! "0 :7 OMNnAPE transcribing ~ (lat.J fr0m Te~il$Instrtlrn{'nt~ rnagneOISC 10 SI£ FM tape ~ !'.()\\, \nu C,\!l u'II,,>-.:nl\(' da!d ,It 1.\ til !!nTn ! ill' U \1 \ II 4/'1 I'> LI~LIln.lok. t.'a~\hl ~ "Singing'" marine seism!l rC(;llnb, on which \:11id ~uh lOSl can pf(lcess your f("clleds through MAE in several .I Ill. Ill:;!!fll·tl~'r~'''::llrdillctil ,lI\\ Illh,,'!, Il'· ~\ l'\);npk:!L' 1Ilj~'l!m,tllon m:tgndh': "it.'m" Foe a de~cripli\IClirtide on how MAE !.olved the cas.e of the ma!ox.ed reflection, write OSI. Be sure to see the OMNfTAPE at the SES Show in San Antonio! GEOPHYSICAL SERYICE INC. 900 EXCHANGE 8ANK BLDG, • DALLAS 315. TEXAS ..Plea~e mention G~OI'IlY~ll'"wht'O ,\I1,-\\'ering :\.l\-ertis.t'rs ",..'''''' '".."., "'""""" '"'' e!'If ,~, " . . . October 1958 April 1960 Figure 103 Figure 104 it on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (,! GEOPHYSICS, APRIL, !95~ ,m GEOPHYSICS, APRIL 1959 i "EXPLORER::: (ur ORA (OnS , , , Vi 10 POWHt WHGHi., SIZE T""d~in'.1l11fl1<:llj" lir\! bl".1k~).. nCI " e"n1!,!eld, 11<:'-\ I hh 1\ bcll~'rthWl ,I pl,'w~r t'l.,ph "r<'lInd 111<: ,>,t'l ,,!hl.'l PIl;'Wllt \t:l:-'Ol<'t:1.1rh ... Ff'ArURfB. en • R",,.,q m,q':IH:II~' ",ul'prt·,,~i~lll, • ~J I ( /I \0'\ n<.:\\ ,,jJ-[f,1I1\I\h1rl.rr.:d 111 :\(,( "IR'ed,>. Il11tl.11 tilkl'I!1,!.'.. /,'U'le]vr 1"'- .1 hl~hhI,.Plllp.l1Ihk' '\'h'nl \.\.llh ih\.' mpHt' .IUlpu", ,1111.1k"t l-II,-'Wl!) I "\'I'i oKl R) 111.,\ b,' !lJ\)Ullh'd til 111)\' .kq' ,11 Ilw L\'PJ ORI.K j, I1kr,j!l\ II/UI/'I ,1f\c,ul ,1! H.,n~p"flt'dIII ,>11,' hdl~'(\pkrIIIP th~ ~'\I'IOI,.I!jL'n1I1dll'!n II p,I)~I\.lr Writ" led",), ffJ>r .. full "'.plll.,,,,,tlon ()-f tlola Y,I,j;lT'I ""1/,"- tb.: I :'\PLOKf-'R il,d! In RH)l'( LD OPl-'RI\ 11"'(1 (00..; I~. "",t",,,,,.tJj-r'jJ ,e>rlnelph,.. , app.liC!1110"'" "ntf 6qll:jp_nt I'nh \'rll' j ~"\.,)!th,!lk'n :1111.1...:,>n",uIlW\ 1"'( RI ASro PRODl C IIO~, a!hI t ~_ dmpl.'!C~'O,'flH"Jh \ml.\ \1\ amp.:!", .ilk! J ()l '\11 f j) Rl: II '\fill II Y - ·-~·---1·~-:--'---'... ' [iT~~~I;;~I;--~~~~ ... 'd~ ...... ~'~~~ . ,~:,~~.~~~:I~~.:,~~,TR~~.~:~~~~:~~,~;~:s:~,~~~ Ii Plt' .....-..t> (;".OI'H\ wlli'll an,,,>wt'ring i ....~rs mention "I.:, advert Pkasc mflllion (1MII'HYS1C~when an",wt"dng afjverUM'r!' April 1958 April 1959 Figure 105 Figure 106 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf - GHWfj\'Slt';S. AP}{II" 1 Becovse of its extremely small size Clnd handling ease, the HS·J opens the way to more efficient field operations with drastically reduced personnel and equipment requirements. In its compact package, this new geopnone gives a remark· able performance, equolfing that of other larger conventional, single coil fypes. Its high output is accomplished without socri'fit;· log rugged cOMtruction, permitting the use of mechonkol coble hondling equipment and other time-soving, yet abusive, field HS-J lechniquel without damage. The MS-J is free from spurious resonances. Run your own tesls with the HS-J. Hall-Sears will be glad to furnish Irk3i qvantj'ie1 without cost or obligation. SPECIFICATIONS HALL-SEARS, INC TY~f .. S~" SttSMIC :;It ~tc'OI'l Standard frequencies, J 4-30 cps QU"'fI'-ft 1SfR!:Qut".C, Standard Impedance: 215 ohms (Other Impedonce~avoiloble) ~ Basic unit Height; 1.1" % Diameter: .875" Weight: 2 oz. j ~ .--- ~~~~l·:~~~-~R~~·~~~ 2. -- r t 'j.J now pos,..,ibl{· to get dependah1e more, re<.'onnaiS&'lllce ov{'r unexplor('d Q aerial survev:.; ov(~rfcatlln!Je~ ... are3~. country i." a8 dependahle and tr~dll1i n ~41C~~~u-;;~-~~1='L~~or-J,~ •o Terrain onc(l"<:on~jdcrLi(1too diffi.cult can t.:<-ll1y excellent aq linc~flown in w(->-il ACCESSORIES he explored, Now AERO otlers airborne mapp<.·d areaR. .'::'~~ A ful! line of alfachmenh is available for land magnetometpr ~mrv(>.v:-;guided by { and marine applicat;ons. HAHAN" navigation s),st.(·W!'l, Costs for thiR Doppler guidance art- $ i n GUARANTEE to $2 p(>r tine milc. It reduces tot.al costs Tf.'stell in mort> than ·10,000 square milps of radio-~uidedsurveys by 50( ( or more. !. The HS-J carries a full Iwo·yeor guarantee against of d(~s{>rtRUT\'(;"ys, thiHnew radar Doppler all hazards except burnoul from exlernol voitoges. aid mpn!->ures ground dj8t<1I1t'~~Rwithin ~ ~~O• .,;,~ 1 or 2 parts in 1,000. Drift is charted (~t>i('ompl{·t(> lllformati.m, ::r within 0,1 ", No map~,photos or f.,'1'ound \Vrih' Dept. 10:\ fnr Ex ::I stat ions an' requirpd, Pl.OHATION OVER FEATl'Rr: o LESS TI';nR_-\fN with \~/iththis. new R\THtern, Ar.:no CRn make HMlAN\<: NAVtnATJON. It i m(lgneti(' sUfVe;':'l be/ure or during til(' n'porl,Fi co~t...., :·w('uraci(,I". '< 1l)1lpping pfOf.{Tam, T)f'!aYH for comple otlWf imporj,ant data. tion of aerial photo ... arc avoided. What's AERO 5ERVICE CORPORATION Olded Flying Corporafion in the World , Philod.lphla 20, Po. l'h';l."",,~mt..'nti'iTl (;I(Jl'll\-../(" -wllt'n ,w:;~\t'rin~~uh-'t'fti~t'~, June 1960 April 1959 Figure 107 Figure 108 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf 58 (iEOPHVSICS, AP}{IL, 1%0 ·1,,' (;LOf'IIY~li·:-'.O('TOIl}-:I{, !()(IO i VERIFICATION HOW TO BYHORIZONTAL FIND OIL STACKING ... by Schlumberger THE INDCCTION-ELECTlUCAL LOG - For Oil Sa/m'illion THE SONIC LOG--For Resen./oir POr()Jif) SIDEWAll. CORES-Fo', ViJllo11 Et'u/ct1ce THE MICROLCXT-Fof Net PdY Thickness THE FORMATION TESTER-Fot' Fi'l'M/ Proof These are the sl.,'rvi(cs most often used for positive identification of oil in the reser \'oir. These arc the services developed by Schlurnbergcr to make oil finding a logi cal, orderly, etliciem procedure, \Vhen your investment in a welJ has CI) mounted from geophysical exploration :::r CD through drilling to contra([ depth, sound ~ business calls for the most complete evalu ation of all production possibilities. Insure == against leaving any oil zooe untapped by following {his Schlumbecger program for oil discovery. Only Schlunlbcrger can give for I"formafion on the FeUy SlocKinlil technique write to you the combined benefits of the indus* try's most at:curat~and dependable tools, and the 111USt experienced field organiza tion in both operation and interpretation. GE~~7 Ask your Schlumbcrger engineer to ENGINEERING CO.. lUlltlf Towrl $.1.1+AlnON!" C'!',ihl 4,l1H help in planning the Jogging program on YOl!r next well. Petty's patented* horizontal stacking technique subsurfa~e ~ ~ ~ verifies each paint ""ith luultiplc ':..!..!.J O! r H I G H I U $ , " ray paths. Since only the reflection point is conunon to all. noise is greatly reduced and :rnaxlIuu:rn record clarity is assured. ·U. s. Potent N9. 2,732,906 l'I(, Please mC'ntinn Gt:01'HYSICS whl'n an,;wt"'ring :ld\·erti5er~ April 1960 October 1960 Figure 109 Figure 110 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf CEOPH\'sh'~,AJ'RIL. lQ(J~ .~o 32 GEOPHYSICS, OCTOBER, 1962 :.Q. % VIBROSEIS Controlled Swept Frequency ~ ~ ~-;-~~ci" Signal Means Better Seismic Records VIBROSEIS. 2- System With Controlled The illustrations above effectively demon In the VIBROSEIS system the desired fre c;) strate the difference berwl'Cn a conventional quency speltrum is prail-termined and transmitted oCD Energy for Seismic Prospecting seismic pulse and the controlled swept frequency as a swept frequency signal from magnetic tape 'a signal used-in the VIBROSEIS· system. in the field recording unit to one or more uuck :r The VIBHOSI!:lS' ~yst<;mfor st'l"mH' lilt\) tht' ('arth, )! rl'p\,atablt· ~'(llHl"ul mounted vibrator unitS operating in synchronism. ~jgn,dt" pt'rmlt ~t;l(.:kin~~of ~U('\:(''': ~ 5~ismograph5~rvic~ k\J) StislBolroplt StrPiCttDrpDraliDII Corporation INTERNATIONAL HEADQUARTERS P. o. aox 1590 TULSA,. OKLAHOMA INTERNATIONAL HEADQUARTERS P. 0, BO)( 1590 TULSA, OKlAHOMA Please mention GEOPHYSICS when answering advertisers Ph'aO>t' mention (;'f:Ol'll':-1('~when ,in:;\'\'-niw! ;jd" ...·ti_f'e .. April 1962 October 1962 Figure 111 Figure 112 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf m':OPHY"5lCS, j{SE, }061 (,HlPIIY"ICS .. \PHII., 10 /)2 "<' " i HUntin I, NewAer.o seaplane features in-phase, ~gs out-at-phaseEM detector plus magnetometer,scintillation counter Hunting is the: first to offer contract .services with deep· penetration pulseA.ype: Induced Polarization equipment. This equipment has been successfully used in-exploration fot disseminated sulphide ores which do not respond to other electrical methods and offers particular advantage in interpretation of. responses in areas of low.resistivity overburden and stratified rods. Salient features. of the equipment indude: .. Power output of 10.000 ....ath ~ D~pthof pcnd,4tiQn of mQr~than 2.000 fed .. EfF~et'''epenetr"tion of 10W-Htsist,V.ty overburden .. D. C. resisti",ty recorded ~ H'Sh senslti"ay {~-10 per cent pf b .. dgroundJ .. Rapid ope:rdbor1 (e.g. I mile p'I'r day at simult"'I'eOuS spaci/'l9$ of 400 and aoo tu:t) .. Accurate po~'tronll'l9of sourc'l" of polartzat.on 1\'1' i;-; it1t('rpn'te 10 Rockefen.r Pla.a, New York 20. N.Y. Slln·1;:','· ...., with tiw Otter and lilt' intt'f nH'nt ·-·Al\l'O'~Otti(,l';o; I hroll)!:holli r he prt't;lI ion of it~gt'()Ph~T:-;l(',lI n·('onl~\vo1'I !'le3f.t ml:'ntion GUH'HY..,/t!> ~ht'nansw('rin)l: ad\,('rti;;er~ AERO SERVICE CORPORATION 210 E. Courtland St., Philadelphia, Pa·., U.S.A. Cobl,,· Ae,corp-- Offices ;1'1 Ottowa, Toronto.. Calgary, Madrid, Beirut, Tehrof'l, Sohsbury (Soulherf'l Rho-de$iol, Hong Kong; Sydney, BU<"10s A!re~,Lo Pal, Rio de Janeiro, Santiago, B0901a, CQraca~,Quito, limo 1'1v,!,i' n'l.'ntl"11 (;L11J'lJ\.-H -, \\h~l'.10-'\1:6li. o .!!h\·Il!'l·~' June 1961 April 1962 Figure 113 Figure 114 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS, OCTO~ER,1962 More than 40Years World-wide Experience A BIG STEP FORWARD IN '$EI$MO$ SEISMIC Oldest Geophysical Contractor with most Modern Equipment "Foremost in effective Magnetic Playhack Technique, such as Appropriate Stacking ~ TECHNOLOGY Skipping Mixing. Continuous Integrating' Magnetic Delay~lineFiltering. Various Possibilities of attenuating Multiple Reflections· Appropriate Combinations of Frequency and Wavelength Filterirrg in "Very Low Frequency" Refraction Seismics in order to investigate deep Basins in most accurate and economic Surveying with Worden Gravity Meter Geoelectrics . Geomagnetics . Scintillometry Regional and detailed Prospecting in European and Oversea Areas with ,. economic Costs per Square Mile Q. Thorough Interpretation· Well known for efficient Reinterpretation of older ::a:: Surveys ~ ~ 9. Ci) • GEOLOGICrSEISMIC SIMULATION CD with lIynth1'tic lI<"i~.mH,gr-alns(iJlChldino:' JliulUp]et> and multiple-irc",) o ::r • flEI.D OATA CONTROL " through re,>ording technjqu('~llniqu" to till;1 problem area ':i • TRUE AMPLITUDE PRESERVATION [ with programmt'<\ gain conlrol • ADVANCED SIGNAL ENHANCEMENT Se.:tlon ""th Stat'.: Correct.ons The same ~,.ctlo"lmr)foved by Sk'PP"ng M'X""9 ~ with PIE SLICE and other new signal ellll.,.'1.ul.l" F,lte""g 268 5c:p9 and Cont.nuous !ntegrahng ment prOCel'!loeoi ::r :::lI PI£ SLICE tem(We~I"Otse o SEISMOS GmbH, Wilhelm-Busch-Stra.6e 4 ~ Hannover, Germany '< G.OPNY •• CAL 5 •• vlc. INc. Cable: Se,ismos Hannover· Phone: 70831· Telex: 0922419 TEXAS INsrRcM£Nl .. ~ SEISMOS welcomes You to the inter-oil Exhibition Frankfurt/Main, Halll, Booth 846 Plea.<-.t' mention Gl uruysrcs when answering advertisers October 1962 February 1963 Figure 115 Figure 116 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ ..... CI Tothose men responsible C for findingoil ... Tothose men responsible for findingoil ... Effectively"DE·GHOST" ~ .- ,) Pllt~»1 ATTENUATE GHOST II{S!DUAl I'II:IMAlI\' WithOPTIMUM ,~ /1 MULTIPLES a·-V' WIDE·BANDSTACK* with Optimum CONVf.HTIQNAt ., STACI( GSJ's new d('~ghoslinstechnique differs from conventional Horizontal Stack shot stacking in that separate frequency filters are applied ,\/,-," ...... - before stacking. Initially down-traveling (primary) energy (HIOST ff!$ID\.Ml In the diagram above, each of the three traces is processed A drastic redudion in multiple energy V by an optImum digital filter prior to stackIng. Filter deSign .is enhanced and initially up-traveling (ghost) energy is PRIIIIAilY rejected. crltena are the predicted or measured reSIdual multI pte at: much as 20db is achieved through u..e moveouts on the common mput traces After OHS, multiples Wide~Band of Optimum Horizontal Stack (OHS I , Op[imum Stack highly attenuates ghost COMPARISONOF OPTIMUMAND CONVENTIONALDE,GHOSTiNG TECHNIQUES on the resultmg output. are down about 20 db energy over a wide frequency range with minimum db-toction This digital data processing technique of the primary signal. This simple synthetic example compares conventional de IS currently in J)I'odudion m:e on se"el'al Two or mOTe recorJs atc shot in the same hole and com· gbosting with Optimum Wide·Band Stack. Traces A and B GSI seismic field parties, bined after individual filtering:. The only data required for repl'esent seismograms from two shots at different depths in The technique is utilized for multiple use of Optimum Wide-Band Stack is the vertical travel time the same hole, Traces have been static corrected to line up between shols. No knowledge of the ghosting mechanism is primary energy, causing the tthosts to he ih "wavelength" attenuation in area" where a known veloc diffel'ent~al needed, and Optimum Wide-Band Stack handles ghosting out of phase, Conventional de-ghosting results in a 9 db at~ ity exists between pl"imal'y ami equally well from a nCllr·surface reftC'-1ion complex or from tcnuation of the ghost. Optimum Wide-Sand Stack attenuates. multiple reflections. a single interface, the ghost 20 db while still preserving the primary signal, An especially designed field recording technique which Ill'odeles 300~;subsurface l'overage is l'equit'ed to recon! the data fo" EXPLORATION APPLICATION NOTE, events are ellmirrated. and even weaker primaries ( ,4 ~lA digital jH'oce"sing, After predicting the sec,) become recognizable, normal moveout differences between pri· en In this. sample, a strong ghost from the base of the weathering Excellent chiJracter correlation between the deepest IJnd ::r and a weaker ghost from the surface are highly attenuated by shallowest soots can now be matle and, with removal ot maries and multiples, special optimum fil· CD Optimum Wlde-8and Stack. The uphole survey {l} has been ghosts. meaning can be attached to waveform changn. for i' tel'S a,'e de:;igned and traces are stacked to .. processed with PIE SLICE" to eliminate high velocity horizon strat trap interpretation. Optimum Wide·Band Stack has been tally traveling energy ••• leaving essentially ttlEl vertically applied In (3) to emphasize existence of the ghosts and to • provide the multiple·attenuated output. traveling energy. With Optimum Wlde·Band Stade; (2) ghost establish their r&iation to the primaries. __ ~~~~Ie In the example at left, the three com· = mon subsurface input traces show a primary ]'efledion and a multiple with ]'esidu.al moveout. A comparison of the I~:; " mUltiple attenuation achieved with straight II I iii "tack and with Optimum Horizontal StaC'k I I' multiple is shown. With conventional straight stack· I __ 2Ddb ing, multiple attenuation of about 6 db is ~j--, I attained, while Optimum Horizontal Stack j>l'oddes attenuation of about 20 db. GEOPHYSICAL S •• VICE I .. c. ADVANCED GEOPHYSICAL .C'U TEX~~.,~,,!~!~!,,~~~NTS SERVICE TECHNOLOGY ..'"001:'<<:;" ..... ,,'1'...... ".. " e~D(> .• "~1_""'''~,. TI;)[/l5 • OSI Servlc:. M.rtI: June 1963 February 1964 Figure 117 Figure 118 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf To thosemen responsible for findingoil . .. Tothose men responsible for findingoil ... REMOVESEFFECTS OF ADigital Exploration System for DECONVOLUTION- NEAR·SURFACE LAYERING STRATIGRAPHICTRAPS SOURCE DIAGNOSTIC WAVELET WAVELET ~£"VI~~O ..T"E~;MOS""G,~ A~~~~~!~"~" I '.~;rr ,. Q. A w,de variety of dJstort seismiC ::z:: truly d,agn05tlC ~ ~ a Q oCD "0 ::r ': ~ ~ ::r o:::I i'< STRATIGRAPHIC TRAP EXPLORATION SYSTEM G.OPHYSICAL S •• VICE INc. DIGITAL sc,u,eE 5E"V,e£s DiviSION SEISMIC T£XAS INSTRUMENTS ~ '~~O~~O.'T'~ SERVICE G.OPHYSICAL SERVICE INc .. ADVANCED GEOPHYSICAL. TECHNOLOGY ~'b .e,~ .. c'" "o;""'!<:o;'" 0(>,,,,,0" SERVICE TECHNOL.OGY ~ TEXA;-,.1"t:~~':~)~~NTS .. A GSI $ .. nh;~ M .. ~k April 1964 August 1964 Figure 119 Figure 120 ~ ..... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ Opening Up a New World in Exploration ... Digital SeismiC TeChnOlOgy: rr\~~11'.'rI!I '11,[<- fl]<.lnl \ U(" INSTRUMENTATION TI;CSf Dit\lla! :H'!~mi('INh!WitlgV i~,I rH~'J..·,l~l'I"T" ~'~fI",lOCI!) "r1'_\'" A,I:'!lIUJt optimum lidd J'('ctlrdm~ "j~n re,·(~n.-hnJ.i:and ,Cn!t.l! prOlc" .. nl/{ l'i..jUlpmf'!11 KC'V,mnpmwnh of the tOl.1/ ·,y"ll:m Opening Up New Worlds in Exploration ... GSI DIGITAL MARINE SEISMIC SYSTEM (I) ••• FOR OFFSHORE EXPLORATION i 'iy~t('mnmVl'rt., rro,('~... t,lpl'~ iO de-,itt'd anah'g prr<,ent.1tiOtl!>, Tit;,; tol,IJ -." .. t(,01 nllnr,llJbihty (lm i 'f~q~f~"t"~-\Il"!~ ,\,r"·.l"W '--"~H"nl', tributes directly to improvement of the economics of t''!(ploraUon. • Recover Toul! R ...f1cttion AlIlpliludci • Apply St.ltk and ;-';:\-10 ("()rr~,.. tiol1" • Attcnu.l-tc l~re'!'h(lt.Ulil Amhhmt ':ttl",' 1"", h,.,rll:LMI"'~D>c, 1.\l A~ ... !.", !{tM'<'lr :'\~If'" • A{lI'!1Il December 1964 February 1965 Figure 121 Figure 122 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf New from SIE--For 20 Years., ('('The Standard of the Industry'" This is the most advanced system developed includes a 6-channel simultaneous delay line to remove large moveouts, beyond the capa~ system, MO-3 Multi-Channel Oscilloscope, the bility of standard mechanical moveout sys capability to correct CDP field records, a 6 to tems, and to process records rapidly with high 12~foldcompositing capability, and the PL~600 Geodata Processing System accuracy. The new SIE equipment package multi mode Cross Section Plotter. ~ ~ ::r: liiiL •.. ,j ~ ~ Digital Conversion Systems ':'1'-.Q~ . I I 2- SEQUENTIAL OPERATION Q SI£ has developed a sequentIal A to 0 and oCD D to A conversion system which accepts j" ,',,,1""' 'Q data from sequential standard analog play ::r back equipment. The DCS·701 system dig· l ., >:.~i. Itlzes information from analog seismic ~ field records. and re,records It on mag· n netic tape in an I8M·compatible format • sUItable for digital analysts. The new SIE !!. system also converts computer-processed digital tape (when in a playback mode) to an analog signal for display on an external 3::r recorder. Variable Width Multimode :::I Oscillograph Recording o MULTIPLEXED OPERATION Wide Dynamic Range This Oresser SfE system delivers Recording System the industry's mos~slgmflcant Im Up to 28 channels of analog seismic re ~rovcmentIn multi mode presenta ! corded data can be converted to dIgItal This new Dresser SIE development fur twn With adjustable trace spacing form and recorded on magnetic tape com+ nishes a sensitive and accurate 12 or 24· and track width. The VT·6 uses a channel fIeld recording system designed single aperture opening in its opti patible with IBM formats. The Dresser to deliver magnetic tapes ready for the cal system to select. VD, VAR or SIE multiplexed system also converts playback center. The ,system, records a WT mode of presentation controlled computer~processeddigital magnetic tape 90db dynamiC range Without Signal com by a front pane! switch. Continuous data back to an analog seismic record. pression on standard SIt FM magnetic adjustment of trace spacing and tape. Field data recorded on the WR·90 is track WIdth from 8 to 48 traces per Conversion of a maximum of 14 channels ready for an norma! analog office play Inch IS accomplished without in IS simultaneous; conversion of 28 traces back center processing or for digitiZing stallation or change-out of chan is made in two successive passes. to standard computer format. nelizer blocks, grids or other units. February 1965 February 1965 Figure 123a Figure 123b ~ (j on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf N W ~ ," , . ,~ : l::'~t~~~("'I~:~~;;'e~"i~~~;rl, tt;,er,,~'Jci.J"J~ ~~()I~t-)~L~ll~~D~'~~~t~~~~"'~;e~,~,~~'''w~~'t~~O~\V~~~~~~,~i' r;'~6,J.I~~j~:w:j>I The ROGACORD', a npw l1igh.fn~quBncy en rol!, This HOG ACORD pmvides signal, :::r sel~rnicsystem ifWI~nte(jby teClture provldt':'.> resolutIOn to-noise ratlQs scv€r;'il times CD the Gerwr,,1 Atomic Division .. much greatt·[ than thdt of con highN than cww('ntional of G,mt'ra! Dynamics ventional o-.eis.mic equipment seismic systems. Tnt:' high == Coq1oration Etnd devf'lopcd [esolution dnd selectIve lOll(' by Rogers E)(plor<~tlOns,Ill';, ROGACO!W l1S(:!5 an array illumination ROGACORD offers and Generl1i AtomIc I of signal '>Durces that permits provldc!., higher data r£.'soiu!ion you means that you can P1l1- controllIng th", en!,'rl;':Y wave dnd grea\P( zoni' spiel tlvity poin! gBologic ti'luse of th('- t'XclUSIV(> feilfIJrf>,> trrJlIl11g bednl direction ilnd ROGACORf) gives you by of ROGACORO; w;ophonl; 1.10'>11ion, wming toddy to Rogf'rs. '1H. The radita! (I"W sigrMI source ROGACOR[) USI~Spro mOGln~S,~~~O~~' vides 5ignal flE"qtJencw~, 34 A"", d<', Champ,> f.ly~ December 1964 December 1964 Figure 124a Figure 124b on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;EOPlIY';;(l ~,ACCr:-:'T, 11.)(11 47 GEOPHYSICS, OCTOBER, 1966 A-37 Announces... ENGINEERINGSEISMOGRAPH VS-ll00 • Designed specifically for engineering applications • More than three years in research and development by Sprengnether • Measures three components of ground motion over wide frequency range SENSING UNIT Size: 7 ~ 7 x 7 inches Weigllt: 19!,Iz pounds. STRUCTURAL DAMAGE FROM BLASTS AND VIBRATIONS ~ This new three-component system provides a nat rt$ponse to', ground velocity, ::E: Independent of the freQuency of ground .vibratlon, in the- 2 TO 200 CPS. range. The instrument IS designed to record partIcle velOCity which is most directly reJat-ed to structural damage according to Bureau of Mines Report of Investiga tions 5968. ! 2. Ii) ENGINEERING PROPERTIES II OF SOliS AND ROCKS ~:r Conventional refraction surveys can be made with ~ the three-component VS·llOO. In addition to the compressional velocity and layer lhitkrtess inf.orma· [ This s('ismogran) s(>j:nn('nt was rt'cordcd on (~('opdnt,011(> of a family of gix tion normally obtained in standard singte·eompOIlent (vertIcal) surveys . .lhear velocities of the layers can J1C'Wg'<'ophysical r('(,(HTJing p:lpcrs, from Xerox. d{'~ignpdl'xpressly for sl'ismie he measured With the horizontal components. Knowl W';('. Could t}w papt,!, you nn~now \I~inghav(' captun>d this av.'('S(lmp ('vpnt as ~ RECORDING UNIT edge of both types of velocity allows determination I)(>\\, :r dpurIy and pn'cis(,ly? Th(>l'('\; at }Past one Cpoprint papN pl'rf('diy Site: 9·~11 x 13 incnes :::I Wligbt: 33 pounds. of the in situ elastic moduli, Poisson's ratio, rippabil· sUltf'd SlX'(:i mm()~'il\g ! traiJU'd saie,<;Jl\t'tl. No mOI'(' waiL W(, ,\nu!d we/colTIP thl' dl{ln('(' to ~~\, hl('k up our story \vith an on-location d{'lllolll-itration. Intprpsl('(J.? Call any .. &. Xp\,ox branch ofli~'(',Or, writt': XNOX Corporation, l{odwstpl', N. Y. 14(J03. W. F. SPRENGNfTHER for more detailed Ask for frep hulletin 2:!K. !r:\dt'''~;lfk -..""... information write: 1-INSTRUMENTEO..:LItIC. 4561 SWAN AVE. ST. lOUIS, MO. 63110 U.S.A. Phon., JEHerson 5·1682 (ATea Code 314) I'k.lx' ml'11I1HIl ( P1ease mention GEOPIiYSfCS when a.nswering advertisers August 1964 October 1966 Figure 125 Figure 126 N W ' .... en on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPIIV:';ICS, OCTOBER, 190, .,1-·/1) (;EOPHY-"JC~.OECE.\lBEH. 106' ::" Engineering ~ has corne a long way since the first Trans-Canadarailroad was built. NEWSENSITIVITY IN GEOM:AGNETIC Ccmstlllt:ling fh~Ir,ns-C'1'Ii1l/1lJ Ilkif"",.,_ '880 PhQfC ,- ccwrtosv C P fl. Nowyou can measuremagnetic FIELD MEASUREMENTSfield variations equalto onepart in 5,000,000with Varian's new V·4938Rubidium Magnetometer. This is a continuous,direct·reading, 'Maybeeven further optically pumpedinstrument which can resolvechanges of O.Dl.gammain the total'magneticfield -in the researchlaboratory or in. the field. iJ Dual sensing heads give a gradient measurement than you.think ... that cancels time variations to obtain highest possibleJesolution of changesin the local magnetic en~ field. By eliminating these,time variationswhich might obscureimportant magnetic data, the V·4938 For example, Huntec' s scientists have developed new techniques CD paves the way For for investigatmg the sub~soijthat combined with conventional for a variety of unique investigations.[] geopllysical research,this rubidium ::l. geotechnical methods, can produce significant engineering magnetometeris a useful adjunct ,to gravity readings,seismotogical surveys, magneto·tellurics, and = economies such as: experimentsin gradiometerconfigurations. Solid·state ruggedness means it goes wherethe work New, shallow seismic methods which measure depth and is -mobile·mounted on a light vehicle. ::; If you need laboratory sensitivity and accuracyin the classify materials often for less than 50 cents a vertical foot. field, you'll want to read more about our Rubidium Magnetometer.Write to Instrument Special And a marine seismic method ~-theHydrosonde- ~thatcan Products tor more detailed technical information. produce continuous profiles of ·bottom and sub~bottomto depths of hundreds of feet instantaneollsly recorded, for about $100 a mile. (/) z: SENSITIVITY: +0.01 gamma POWERREQUIREMENTS Huntec's job is to know where geophysics·can be used and to RANGE: 6,100 gammas selected Magnetometer (less recorder) 40 watts o a.c.: 110-220 volts, 50·1000 cps app~y between 15.000 and 80,000 gammas it wisely and scientifically. We have the experience to do so. ~ d.c,; 24-30 volts AVAILABLEOUTPUTS When you geuight down to it , " U WEIGHTS shouldn't you talk to Huntec? "'" Self OSCIllator: 4 7 cps per gamma Self.oscillator: 6 Ibs. Mixer: square wave frequency of Readout: 38 Ibs. u 20 to 3000 cps 200' SIgnal cable: 24 Ibs U1 a.. Dlscrimmator: 0·5 VDC Recorder: 14 Ibs. HUNTEC UMITED C/) Recorder. 1" to 300-gamma full scale PRICE: $9800, complete with ~ecor:der - 14500'Connor Drive, Toronto 16, Ontario, Canada I.,Montreal P.O. Vancouver B.C. Syosset N.Y. ASSOCIATES SPECIAL PRODUCTS ""VAV R I A N 611 HANSEN WAY, PALO ALTO 33, CALIF. l'h"l,'-.(, mention (~hwHY~lC"whNl llTI5\\I·ring ar\H,rti""'r" '. fN !:lIrfl/,t, ,"n!",f I :11",dn <,·1(,., /lIp,. ,\u II:::.trl,UIJ Plr-a';i' UWll!)"ll (:1"/'1/'-"'1< -. \\hen :\ll ....\\\·rill!~ .111\'('rti~r" October 1967 December 1963 Figure 127 Figure 128 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf A-2(~ (;EOPHYS1CS .. ;\('("i"CST. JI.)(o(; ~ x ~ ~ 2- Q LOOK,SIB ISAAC, III AT SEA .g GRAVITY ~ IS NOW ':i STABILIZED n !!. but gravity is quite smooth on a GMX Yacht. n~w Tht, '>iJ.bi!Jled pLltfflrul gravity Tl'!l'-Ier pIHS contin B('cau~tthey are tab.:n at.the ~amctime. thc~.:three g1:'o -I UOllS ~hipbl)rncgr:.!\'II;' m~>ifSur~mcllton a n~'w pial<'au phy.<;ica\ ll;ClI'iliremtnts h:m;: c)(;)clly idl'lltical locatIOns The continuous recording shipboard meter is now exploring for oil and gas. rcli.lhilit)". ,!TId econom}. Test.; o\cr a for gfcalc'st ll.:curacy And whde you're getting better ~ fidd (lht3ilWd all .K'Cur:lq'-of heHer than meaSurements. you arc. payiog less: a 'i-zogk boat fee and ~ :::s For particulars wnte: with 1.hi" new 11 <;iogk pos.itiooing ke. Thi!> combination of accuracy, 1 ~.;i\'mic ' • magnetIC. and Jat;) ;)re obt,!int;d economy" and speed is nn/ll,ltched_ But it's. Wutine with o ~in)\t!w!lI:()lI~I}at Sc'J. at a ;,p""d of S miles an hour. GAI-GMX. Try it! i 1I"'"~62:"~~::'·s'.A!~Ll"',;H.-,,-,,.~.}PT!ClI.l<; '< (f; (. Jo::.fJ Snlmek 0' l l t~eltl':!0npr. N»lscn C. St<;enlarid Cable' Ge8nal ga n:~:~::,~:,::~~:~;~~,:~::A~:~:: ~ J>lea&~nwmion (~f"OI'H\,SH'':':when an~l\'t'ring: ad"'t'J"tisef$ February 1965 August 1966 Figure 129 Figure 130 § on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (,UJI'!IY"::f(''';. ,\~(,(' ....T 1<),,(, ~ GEOPIfYSICS, FEBRUARY, 1966 A-41 ..... CENTURY GEOPHYSICAL CORPORATION CIO BARRINGERAIRBORNE GEOPHYSICAL SYSTEMS Introduces ... Down-hole Gravity Meter Surveys and... Specialized Services Designed for the Petroleum and Mineral Industries SEISMIC SURVEYS: LOGGING: Refr dnd I1Hnp,r,ll cX[,i01<1tl(l[) dnd Ilvil iH:edtiOtl dnd p,aIUd~;011cf nl(:tw"" n(>erlrl~;d[!plicat!o!1'> ,"ll1r! non nwt':lill(' dej)(hit<, SEISMIC REFERENCE SERVICE: GAS LEAK DETECTION: SRS Df'\ailed vt'ioCity (ontrol In (on C('jl!ury'~fldllJe iCIIH1,ltlOrJ '~\HVt~y~,Ht' Junction \\ittl Schiornbcrger'.., Sonl( dl1 ('tf(~1ttve <'ind l'conomicdi rnt:thod ct Log, hoth on lilnd ane] off hart'" [,)(11(11y' dctt;ctlng dnd lor'"liz!ng ~~d:, Thi. is how the Barringer Airborne Geophysical System. recorded known !Pilk" in tr;!I\\illl~,-,I()nand cJt~,triblltr(.11 mognetit. an.d massive sulph,de targets during a test survey program flown for L.K.A.B •• the Swedi.h iron are mining company. t/) '~l<,tE'rn5 DATA PROCESSING: The systems, installed in the Barringer Super Canso, include the lat.st :r 4D !l~~1710 :,y~,tf~mv,it!) onl!!te C;;liCorn\J Barringer Mark V INPUT EM In .. trument. AM • lOlA Proton Magnetomet.r and ... f'lottpr and ADCOAC < af)abiilty fOT DATA, INC.: 4 Channel Gamma Ray Spectrometer. Th is unique combination of advanced systems can, in many environments. prOf es',mg n1di;l1t'tl( laI 1(''> SU!)c,Ic!i,lry f'OqJOfdtl(J[L COlllprete penetrate overb",rden to 700 feeti locate mas.ive and disseminated sulphides; = AdditIOnal :,CIVICt''O:, In~:tu(jeSYlltfletl( "':-(Jutlng ',{;rVII"\' for t!\I:,; ~"~I,jContIIH"~~ and facilitate identification of certain 0'" types and grades· e.g. high and Sel":,mopa r11',, D1r; Mpt('f f (Jmput;Jtl()n~,Spc -;dll/C·d cbtd ; roct."<,Ir1g low grad. magn.tit.s. ~\lMOCrlads, A1loli),:,I:, I)f r'";r':l'IlIly and (j\'.ll!;:lbil' During S"'f'veys, the vast amount of geophysical information acquired by the systems is continuously recorded with flight poth data; making possi..,le '.1ai:',!I(-'~ICdaLl. dnd (~nf:lfl(!(-riilH rapid, accurate data reduction and correlation. dl'_lliatlcn~ OTHER SERVICES: Outstanding results have been achieved by the Barrin,er Airborne Geophysical Systems during recent mining exploration and geophysical mapping surveys lIHJu"tn,li R,ldIOf:rdi.rl:(_ ~dl'V(!YS,hI" ~" tn North America and Europe. Full detail.s of the systems and test survey DIGITIZING SERVICES: [)(-'viatlOfI Sur,c)" (,td'itt, ::-!l1r'.,(,;, examples con be obtoined by writing for our descriptive brochure. f:.ffertlvE: (on\lf~r<"IOI)of ;,tld!(\~; dnd r[l<'Hlllfd\-lllrtIH( f:F 1IIIIf"" for n r:luoll1g v,ell IOi:'~tCI 'lJ,:dai f0rtll C(j'llr dClHd ('1'11110\ e".· ~ ~A~:::9.1!,~.~~~!!f!!.LIMITED '(y Phone. 677·2491 Cable: Bare.earch Boston, U.S.A. Sydney, Australia f)h-,l~<·nwn!lrlJ] (;jl,1 ~ \1.1\\1: dj.~\\'·Jin.:drhri Please mention GEOPHYSICS when answering advertisers August 1966 February 1966 Figure 131 Figure 132 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf (;U)\'B \'SlC:-: .. \L:(a':ST. 1 ~" A full lineof advancedinstrumentation GEOSCIENCE-INCORPORATED to completelyequip Dinoseis*systems Induced Polarization '-~ill~"lilTr,tdcmJIl; .,q~ A NEWCONCEPT ININDUCED POLARIZATION RECEIVERS The GEOSCIENCE Mode! 5280 Pht'lse Lod Receiver automatically loeh on to and trads the fund1lmenta! of the trllnsmiHed square ( .•m ... Jt. Futures of this unit include: ~ ~'? . • Sensitivity range: 10 microvoth to I volt ::I: _.. • 8andp-,ss (ilters ,2% flat, t 20i'" of ..... fund4rnenta! frequency ~ ~ • bO db/decade roll off ouhid$ passband for mollx;mum noise rejection 2- j ·CiI t· • Averaging times 4, 10, 100 1000 seconds G') CD • Operation at .1, .3, 1.0, 3.0 cps. MC.~ftIII Am~ ,I,er o 'V ~.-'J'• No self potential buding required :::r I ,eij Rtr~'tl,r~Tr«rk ~ FEATURING: Reliability - RU9gedness - PorhbilH.,. n Ease of operation - Availability from stock. !!. n ~:D~,IAM 280 1\'~1 I)!I'.I~('nwn!!"n (;U,I')j\"I< ~ '-llwp pl'~'!!J~\'r- August 1966 April 1965 Figure 133 Figure 134 N ~ CD on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf CEOPHY,lCS" APRIL, 196' :1",29 (;I":OI'IIY,I(,S, J1 '"K 1967 ,1,33 ~ ~ Streamersand "The ideal SeaserDents manne. havesomething in Common profiling 'I h~')'fl" bl)[h Jong .1111.1dl/lieuJ[ \., lllan,lgL' system does not exist ... W. n. J.U,.tlrlI14nn MlI.tla~n,Milt" .... !',·;.. "n:·~On',,-ft"'''''! LlifJll,\1 ;\I1d dl"~'(lupkr(k:,i~l1:-' dkdiYCI~ d~~f[llk'n IU\Nmg hJgln~'l'lillgCOI11- ,ho'f '--'-'fit d all Hl.lfin,-~~<.'i"mil.: \,':\bk· ill ,II! majuf oJ1~hllrl'lIpr.:r.ltor~ USl' [iwill I.... 'f IlhHt' lllfll!!l1:!l1lln :lbuui how (\)mp;)!l) ,--an m;tk~'YiJUr manor t1l\lr~:~'[f1.·.. 1l\l" SEISMIC £NGINHRtNG COMPANY "llb~,d:,l'\(11 \\hJ\l'h.,H j\e(irOlll{,- ~;-Ij'" I! ',l (mPHI' (1'1l11.!! en l).)l!,l' ~ f('I"phl\(W ,\\1 CD ® ii ssp" has a hank (If stora~e('UpadtofJ'l df':'ligned to produ('p up to 160.()OO j()uh>~ of di8charg(' ('nPTf!:Y at tim!'-d interval.. , Clear, detailed data to dt'pth~in ex("e~s of 10.000 fed an~proyidf'd. Tit.. buhhle lift" ."<)r3.!t!i!i"Rllt infMm.ui"I>, ...·rlw In. "\\', K. Cm'hr. e .... J.oWl time is ff'adiIy ('o!1troJ1~dhy tip configura· tion and power l~vi'lto pro,\'Jdf' (l frequen('y I tailort'd (0 the spcdnc o('f'tmo or petroleum ('xploralion purpose. :::~:,...GEOTECH WASSP' ,."" "' _.'-----._------_.TELEDYM COMf',\~Y Plei4'-e mention (~t;OPH\::>1('» \l,:lWfI am,:Wt'l ing advi'rtisers Please mention GWl'l!l!SH"S when answering advertisel'$ April 1967 June 1967 Figure 135 Figure 136 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ,.. Hi. lob: SFJSMIC PROIJI)CTIIlN /1 Today's Program: 380 SHOTS FOR 3·FOI.0 (;OP COVERAGE :z: ~ ~h('\'I,nf. rn,l)~ndKI 1'1\"e,.,.~,,1~<.., Ii) tlnn t!Wft' \\:11 1-", 50 t).lUt!C.t! 1l1ilt·~llf ,"'01mon £")"11 ,l! kl ""lId, l,on'- "'1:[ br In your d('pth «(l\('r,\~('Pfl nhlgndic t"p"'. TI'JTWrfl,.'I'.', h,lnd- ~ n(' 1\1(> ICcoJdtf1,C; ,H'W w111 b(' ~hoolil'gtllT .In- (,<"! nll'.m~~l'(ll'hy'." 1<)1 pn',!uc Il,'n d;}~!!Ld"r '0 ('Ih"r 50 Illde<, I,f lTldrin/:' SC1H\lk J,lta ~t!h3-lnlJ .1'1,11.-1; ~et~mu:,m.lf~nellL'" ~I'Ll\Jly IIdd ..1.1\,\ ,.... Second. 11;,:,,>·or"'''' with .1 il!~h!y~"dj('J J'~lt.JJ ,fl'W from p.uty ,hief h) po',ltit1n L~ 3~ rl()!ll'r. ill' 1\,\., thdr ,,)n{i~kn~~·. ::J ~ Third, he'" P,l\:'kl'd in d,·pth by GSl'., nw~1 o <,,,;wnt'nu·J dlpt,li ;.l'i',0)1l" produftinn nH'1l ~ ()pt'r.ltion~m It'" )' ~~C(''''.,pl~lchl(If('n lepl)rt Hight ll('W jflo hJ~ lob GEOPH ..... ICAL 5E.vICIE INC~ w helr prL'\h.k It ',' " "c' \ Sl R~" f ~ "''.1'>,'',,", Ihl~ ",tlld '"l'V~'ftIH'll~,lnd~ \It hi'll' mdt'" h x,~~~~:;~ ~~~! ~1'" .1nd bt'fnr~'"ver h~ wd[ pl.:tY ,\ m.lJOl r~)klt1 r("·nn.hn~.kPl'lld.,r.k "('I~n"ll~ hke him men ~kdkJ in nl.HJnC di~:if \h'rk)!l~cLl\ ,'\'ClY \ .... ,00.' f AS~• : AT It<. A~.~!'-':(,;~• AL,c;.T' June 1965 August 1967 Figure 137 Figure 138 ~ on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf I\) A· ~,,' sl(,~, lQ(,~ A-SO GEOPHYSICS, OCTOBER, 1967 <>E(H'H\ )C'\E< Co) OIl I\) rr~ MARJ:NE VJ:BROSEJ:S' SYSTEM FROM DELTA /\ (, o C>;) . t><:'f TOTM. .toJ"YSTElIIC .... P ....BIl.ITYAND· RESPOXSIBILln WITIl· PROVEN TECftN'qt_ ..... U) ..i at :~~:'~m:~!~:R~I:~~~~N~ROU~~fR::E~~h~n~~L?3~7~ 2820 WESL"YANROld-HOU5TON TEX"S non·u.s .... Phon•• (713)NA1·1864 II -"" Please mention GEOl'lIYSICSwhen answerina advertisers Please tnentifm GWf'}t'f S!('S when anMYering adverti.'l.efS June 1967 October 1967 Figure 139 Figure 140 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GSI opens New Areas "" of Promise Digital-Air Gun"'" Seismic System ~,5~6 Air Gun Encrgy, ~ Digital Ficld Recording, x Plus TIAC' System Processinll Prod uces UlG ~ Marine Records with ~ Hillh Signal-to-Noise Ratio 2- over the Normal Seismic Shallow Bay Air Glfn Ii) Frequency Band Width Tc.ca,~ Scisntic Data - Gull Coast '. , ~ '0 :r NaVl9at,on by satellite the tool of the future for pOSition locatIon In otfshOfE' work '< IS now be-ing o'fered by urllted Accura21es In the range from 300 to 500 It Bendix UNITED GEOPHYSICAL CORPORATION A SubsidHU"Y of The Bendiw; COJ"poration p () On'- ,.1 -- ?EiSO r._ Foett-"ll L1:vu Fa'"ld,:;,'1i:!., C-,,: f::J~r"cl. October 1967 February 1968 Figure 141 Figure 142 N ! on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf :~ , , {,Hli']l\:'ll.:-. JC'L, \,j"," INSATELLITE NAVIGAnON, MAGNAVOX= BETTERVALUE NatlJrally, ou-r satellite navigation systems are com.pefiHvely priced-but lor that price, Magnavox provides better valve. Here are only (I few reasons; 8ETTER VALUE SHORTDOPPLER COUNTS WITH COAST MODE Ellery Magnavox receIver, old or new, has these two important features. They are nol "in development" oi-offered only with new. higher priced systems of a Magnayox MX/102 I hp System has a short Doppler program, No hardware or computer Thesefeaturesguaranlee~andbetterf!)(es BETTERVALUE 8,192 I6-BIT WORDSOf COMPUTERMEMORY avox, you get more computer for your money. and that means flexibility and growth potential. As improved standard programs ale wntten, are supphed auto- matl{;:ally, and al no extr8 charge. SETTER VALUE BEST ACCURACY Magnavox provides the hest .atcuraty tommercially obtainable from satellite naVigation-the shori Doppler technique assllresthis. (Seethe plot below.) Our reference OSCillator (mounted inside, not an extra box) always meets and usually exceeds the stability performanceof"edra box" oscillators BETTERVALUE HIGH REUABIUTY Advanced, mtegrated cirCUits are used throughout to obtain higher reliability. Our commercial fe ceiver is identical 10 those sold for M!htary use--not a cheaper topy. Every set receives a 55· hatH burn·m test @ 50' C With 2 G's of 50 Hz Vibration before delivery. AI Magnavol(. reliability is taken senously BEnER VALUE fUllY AUTOMATICOPERATiON Magnavox systems are designed for hands-off, fully automatic operation They always ha ...e been, and tn our performance continues to be unmatched II::T Whether you need a Satellite Navigation Receiver or a completely Integrated GeophYSical Navigation System- ... cali o[write: SatellIte Navigation. Magnav!'x Research laboratories 2829 Maricopa Street Torrance, Califorl'lla 90503 == ·Phone (213)328,0770 Reprints of the foHowing available upon reQuest- Marquardt Doppler Sonar SystelIlsAid Navigation ... "The Navy NavigatIOn Satellite System; Descnption and WITH PIN ..POINT PRECISION Tr!lckin~i;.nd l'clo("ating specific oe"!ln Status" "An Integrated 'Geophysical Navigation System Using :\1UI'qllardt tnt!'pcttH'l'f> a new Doppler Satettite,Derived PositIon Updates" cnUl·se, and pOSItion data along tl](' eontilH.mtltl shelf within 0.2":. of absolute distance from a predetermined fix. Tlw !l,\ s.h.'IH dlspJu;,s contuHlOUs. ri~adingsOll tl·ue n'~Vlt;ajlOll,Hid dnckin)! :nds ior the h~nkerand; /~"__ _ rppref>entatlq, pun d?1l1011S1l'ate hOl\. 1)OPPlcrl4R' /.~ tS (' 11""l1lp'nl,I"f))\"!' ,,1 1.'1' The MX/702/hp Satellite Navigation System consists of Antenna/preamp Assembly, 200' of coaxial cahle, 702 Re· ceiver. 8,192 l£·hit word Hewlett Packard 2114 Com 124 ft. RM5---Typica! Accuracy obtamed with the Short puter, ASR 33 Teleprinter. and rugged, welded rack with Doppler program forced ventilation August 1969 June 1968 Figure 143 Figure 144 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf CSt opens "New Areas of Promi,p" with ADVANCEDMARINE SEISMIC SURVEY SYSTEM !:\)Q,o ([''''''J''{, !~rOJI\"7 ~·)dfI.o:') f",,> 'h " United's ".,j, .. ''''(''t'N,~',"., <.H-:f-,"It''-:''''·' fl'.'< ~""", <)('1, SONOFRAC system ~ An economical high~speedmeans for New Generation Digital Seismic Data Processing Systems pinpoint obtaining refraction data at sea. ::a: strategic geologic formations - Display Interval Velocity as a function iii" This service based on a system devsloped by S' the Lamont Observatory of Columbia of space location as one production .output ..' University'" now becomes available to the '< oil industry. G:'!oI'S NEW DIGITAL MARINE SEISMIC EXPLORA • (,ll( ul,ltr', OU!I'\I! 2- TION SYSTEM OffERS NEW SIGNAL PROCESSING \,d\ ,fH~ Jll"il'ur('mpnl, the ~lgn')1 SONOFRAC incorporates CONCEPTS THAT ARE COMBINED WITH CONVEN Ci) • Single ship operation TIONAL PROCESSES, INCORPORATED >\5 A COM • -\fd, Inlf'rp~t't'ltl • Mapping basement and other velocity markers hnlfJul'~ o I' prlJ\ed In\('r'(' lilH'flfl,-, \('( • Locating faults and calculating displacement : . .GEOPHYSICAL ~ ".":,:~~; <'\.11\1,11(', \t'IO(I!\ ,)nd iIlll'f\al ;g • Outlining salt domes SONOBUOY REFRACTION PROFILE • ( 'p.H~' dvnaml( ~orr<'i,liIOo, 'SERVICE ." .. , .. ,. Checking reflection interpretation OFF CALIFORNIA ~ '< I '\_.,;.;..-,,'. INC. .., '''- • Identifying mUltiple reflections I • ,ltt('n,,,llion (11 multiple .[pt!t'(\(·c! '>I~n"l, ! h,>tlr'f multi pip n'flf'( h(l[1 I(kntlfl( ,ltl(lll ,1m! Bendix United ! h 'U01m,lbO[1 of rkrth p0101 IfJ,{'~with 'U1P1[nlUfll\\,dC'"h.10d If'(hnlqUf'~ Geophysical SC:'l:-'Cf: SER\:( f<; DiV:SIO"l • 11) rdndorn JLO\~,>r.ll'O t1\ ,tal king TlXAS Ir-..Sl RI.. MENTS Corporation (prnn1Or1 tl,l'l'~ December 1968 February 1967 Figure 145 Figure 146 ~ en on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf tJ ~ VELOCITy GSI collects seismic data § § § ~ anywhere under sun. '-;' the -j I ~ r~ ~ "' In I;' ~ n ~~~ ,;; '" X DIGITAL COMPUTER DERlVES ~'''".J ;;CJ f'-j VELOOTY FUNCTION DIRECTLY ~) < FROM SEISMIC TRACES Seiscom's VELOCITY SPECTRAL ," ANALYSIS at left shows plotted re sults from digital computer process ing of common traces taken di-'ctly from uncorrected and unfiltereu seis mic records. This initial VELOCITY SPECTRAL ANALYSIS allows the geophysicist to determine (before further proces sing) the velocity function for opti mum stacking plus the arrival times, velocities and relative power of pri DIsplay :lH::!l. "Rpg-i.;- til tht> {)jl t t' l' P II T l'11 d f'- data th,,-t mark :Int\ ~. COMPLETE digital processing service total (>xpJora~;\Jal'k of ",., "morp.l1;-wful J)('nt~~lOil {'nn;- '- .. _, ,. ~/) FIRST in advanced processing: ~'nhan('f'llJ1'nf, ('an lw i'.,lI('('t('d pHny) 1965 - Time-varying deconvolution GEOPHYSICAL SERVICE INC. 1966 - Velocity Spectral AnalysiS A SUBSIDIARY OF 1967 - SEIS/STACK *(Smit. Name) TEXAS INSTRUMENTS , .... { OI{POH,'l i 0 SEISMIC COMPUTING CORP. PI<\I~i;lE~';I;kn {;IOf'Hyq,'" , .. Itt',: a!';~\\erin::..:_\dH~r'i,;;\>r" 8125 Westglen Drive Houston, Texas 77042 (713) SU 1·3232 June 1967 October 1968 Figure 147 Figure 148 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf A-J8 GEOPHYSICS, APRIL, 1969 Another new process from Seiscom and Delta: GEOSYNTHESIS* ~EOCOM1t Subsurface lithological and strudural modeling from seismic data using computer simulation GEOPHYSICS AND COMPUTER SERVICES, INC. developed from the demand and human interadion. by industry for a contractual service organization with advanced capabil ities in the field of geophysical data processing. Every processing technique needed for maximum data enhancement is available from GEOCOM, including: ~ mr"-~f(1ll~ ----.- (1) (2) AUTOMATED STATIC CORRECTION DETERMINATIONS--GEOCOM', "o'ic iii'j''i''ij'Tiiii determination process has been accepted by the Exploration Industry as :!=-=... - _v------=--Il"iiiiii'jjii .--- -~/~/--=v~~==------= ~t+i one of the most effective programs available. Application of proper static ~-~ 1 I· +-+-t-J' 1 I' . I 1 corrections is an extremely critical phase of processing your data. Without ----- ~ , / , proper static alignment, effective stacking results cannot be achieved. This Depth model obtained from Dil/Dep program with advanced process capitalizes upon traiectory redundancies associated with Simulated trace gathers, the COP method by cross-correlating and editing the data common to stations and to energy source points in order to obtain the static shifts ~ between traces. The result is data that you can interpret with confidence. ::x: The cost is minimal. Send for more information on this technique and ~ ~ example of its effectiveness. ;~f ~ ,=~~ .cl AUTOMATED VELOCITY DETERMINATIONS--This method is especially ~ .00 adaptable for interval velocity studies. Each case is accompanied by an 9. Interval Velocity curve and a Time·Depth curve. . C) Simulated time section Simulated Velocity Spectra* CD FILTERING ROUTINES--A comprehensive suite of Time-Varying Band Pass, o Initial interpretation made using DivDep program is checked by com 'a Deconvolution, Dereverberation and multiple attentuating filters, GEOCOM ::r Multichannel Filtering optimizes stacking. paring simulated time sections and· Velocity Spectra with actual data. Errors neceSSitating changes become obvious immediately. GEOCOM has developed special programming techniques for handling -=n data from Non-Dynamite sources, Our Marine Processing Package contains !!. quality control features, not found in the "Crank Turning" type operation, at competitive prices. /\ ~ DELTA ::r TECHNICAL BUllETINS, BROCHURES AND PRICES { \ ::J SENT ON REQUEST TO, o SeLsmK.:Corrputirg Cap Expiaotrn Cofl1JOl>llrc Deb i'< P. O. Box 36789, Houston, Texas 77036. ~EOCOM1t * Telephone 785·4060 Tubs Hill House, Sevenoaks, Kent, England GEOPHYSICS AND COMPUTER SERVICES, INC. Telephone Sevenoaks 57671 723 HOWARD AVENUE. NEW ORLEANS, LOUISIANA 70130 'Trademark: of Seismic Computing Corp, 3311 RICHMOND AVE., HOUSTON, TEXAS 77006 Please mention GEOPHY~lCSwhen answering: advertisers April 1969 October 1969 Figure 149 Figure 150 ~ ~ 2388 Sheriff GEOPHYSICS, DECEMBER lO()() A-ii' Mynheer Huygens would have been proud of CHRISTIAN HUYGENS couldn't know - 300 years ago - the value of his principle of wave motion to seismic exploration! But GUS knows. And our exclusive HUYGUS' program applies Huygens' principle to put every reflector and diffractor in its true location. to give you the most definitive and accurate data in the industry! 1.5 2.0 2.5 3.0 The power of the program is shown by comparison of a six-fold stack (above left) with the same data processed with HUYGUS. The subsurface is assumed to contain many dif fraction centers, such as the edges of beds against a salt dome. Each center is clearly located. In an actual case, HUYGUS also places each continuous reflector in its proper place, regardless of dip or curvature. Call GUS for details on the HUYGUS program ... and you'll get all of the information your data can reveal. Mynheer Huygens could have told you: It works! +Trademark and/or Service Mark of GLOBE UNIVERSAL SCIENCES, INC. (Formerly Globe Exploration Co .• Inc.) P.O. Bo)( 4547 Phone (915) 694-1561 Midland. Te)(as 79701 Cable: GUS 1969 by Globe Universal SCiences, Inc Please mention GEOPHYSICS when answering a(lvertisers December 1969 Figure 151 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf H GEOPHYSICS. FEBRU.\RY. 1961 •••••••• .. •••••••• •••••• ~...... u •••••••••••••••• , i : ~ .... I A A"~4 interested A~ in GSl's non-exclusive , I ,~. \ ; i i ""ESIO" "600" package processed +.iA~E~~lT-J- seismic reconnaissance data I • -: i ! I from Offshore Texas? i ~ •• i '"" N 4--:::::::)'-''"1: r"---L- ---- ~ ______• ______-1 PLAT-E TI GOSH£" L---r----- ____ ....L:" ~ARAO~!~, 8.~' i I A RjE A I j ! j j ~ "'s;f;- 1. K 1. .I ------.1 ~NOW AVAILABLE .••• i" TEXAS i : Gravity mops and data of areas indicated on this ! : inde-x.map ot a fraetion of the original cost. ~ _ additional inl.,mo.ian, call LV 2~3149 : =Ij1 C'if~'"E.V.MoC''''ID E I .J GULF OF MEXICO ~ .~ ~ ",f..,e.' ", '.. .. -.-- ...... Aero Service Corporation offers Airborne Magnetometer Surveys of WYOMING DctaikJ !-d~micfI:C(lOn"lv .. anct: datu ct'lkcwd ful ,of\ware prnfnlms. in U"C' lOday and rhe April 1963 by GSI fri'm the Tl..'xa" (;\llf Cla:;t area are 870A seismic data computer mUlluf~lctllrcdb} A survey of Area I, covering the Green is 10 gamma. except in areas of very ,l\-,!i!;ihlc on .1 n,'n"c~<.:lt\"iv"h.J!-i:.. jt) jll1at'~t\!d T<:).iJ" In'lwmcnt" inC()Tpnrafed. Total miJc~ Rh'er Basin, Rock Springs Uplift, is steep gradients. In data reduction Figure 153 pdrti.:-.;. TIll'~t:daw wn<.' acquin.'J \-1,) thl' laleq age Please mention GEOPHYSICS when answering advertisers February 1961 February 1970 Figure 152 Figure 154 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf I ;::,., ~ Co ,.:!:l '"~ 3,. C"l ::; M ..... o· 0 ::; '"t:I ::x:: ><: C"l en ~ ..... ("J '"~ _en ..:: t::1 ~ CIl M ("J ~ M UI ,.::r ~ :r ::; t:d CD... M ::; -="" :;>::I '"tI> == ~ ..... ,. ~ -0 ~t&1Sr..~)) a~ -> .~ )q5' Po.'" ,.<: ... ::r. ,.CIl ... tI> HOT FRIGHTENED --- :'Y~-BUT LONESOME December 1972 Figure 155 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf GEOPHYSICS, .~PRIL,1069 ..1-2:: Where to GEOSCIENCE now? You've logged your well-and in INCORPORATED doing so added materially to your store of subsurface data. But there's more-a lot more geologie data available to you with Schlumbergor'S High Reso lution Digital Dipmeter. For your next lo-cation-or per haps to kick your present well MAGNETO- TELLURICS over to a more promising bottom hole position-the High Reso tution Digital Dipmeter provides a wealth of information. FIELD PROVEN First, study of the dipmeter yields structural dips and locates su-ch IN OIL EXPLORATION geologic- features as faults, unconformities, and overhangs on salt domes. Then, interpretation of the High Resolution Dipmeter identifies ~ A mapping technique for: depositional features such as bars, reefs, channel· fills, and ::J: distributary fronts, and gives Depth to Basement related information such as the ~ • location and the trends of these features. ~ Porosity Studies also indicate the deposi 2- • tional environment, the rate of deposition, and the direction and c;) • No Record Seismic Areas rate of sediment transport-plus oCD information on whether structural "a movement was- concurrent with ::r Unexplored Basins deposition. • If any of this added information 1 can help you decide where- to go 5" Sediment Thickness Beneath next, use Schlumberger's High !!. • Resolution Digital Dipmeter. .... Magnetic Intrusives It takes over where your geophysics left off. ~ :::J Now available for contract services. Your inquiries SCHLUMBERGER o ... the high perfonnance company are invited. i'< ~ GEOSCIENCE INCORPORATED 199 BENT STREET, CAMBRIDGE. MASS. 0214t Please olt'ntion (;~.Ol·HY.'>IC~\\'hen an:,.wcring advt'rtl~t'r., April 1969 October 1969 Figure 156 Figure 157 N ~ .... on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf N .4~.J2 GEOPHYSICS,OCTOf3EK,lQil' GEOPHYSICS, APRIL 1Q;3 A-f;' ~ AERO ~ geoMetrieS First In Capability, First In Technology CompuDepthn. ,. Depth"To-Magnetic-Baseme~ • AIRBORNE G£OPHYSlCS< • GROUND GEOPHYSICS • AERIAL PHOTOGRAPH.Y • MAPPING AND SURVEYING • SIDE-LooKING- AmBORNE RADAR. Aero Service, founded in 1.919-, is the world's senior airborne· mapping and geophysics company. Today, Aero is stiJi first in service, first in technology. New dev810pments at Aero include: HIGH SENSITIVITY MAGNETOMETER GRADIOMETER SURVEYS~Aercpio' neered use of this rev01utfonery technique, which increases resolution of magnetic surveys by a factor of 100. ALL DIGITIZED DATA HANDLlNG~Aeroexperts have developed programs • Produeet; Accurate Depth From ~tk::. Marirur which completely eliminate manual processing of magnetic survey data, from or Gravtty SUrYer Data original reCGrding to final map production. • Resolve, CompIex,-$U~ Anom. alies By Determining.. Depths to Indlvi~ SLAR~Aerois using new side·looking radar techniques on a worldwide basis. duatMlllnelicDls October 1971 April 1973 Figure 158 Figure 159' on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf t;Hll'HYSJCS, JU:\L Ni.1 A-13 4A,lual "nperwalet' I'fI'lI9ll. sIUIWMw.[tequ.,ru:y IIlgnlil. :gen<>I;Ii!ltm {if Birdwelt'. ~ Air Gun energy source for Offshore Velocity Surveysc./•.. ::J: ~ ~ Birdwell·s Air Gun Well Velocitv Surv,,\, equipment is so li~hlw"i~hland ca'sily ma"; 2- aged ifs "00 call" world-wide. . with Bird C) \\.cll professionals to man it. l !ses conlpressed oCD air gun and wall lock well ~eophoneto climi 'a ::r natB explosive ..._ shooting honts, positioning. pffset corrections and structural and marinn ~ n" liff~darnaQ"e. Offers improved data and eCOTl !. rig <10\\/11 time. For more infor~ malion, contact BIRDWELL Division, -I l!: Seismograph Service Corporation, p, O. Box ::r Aero brings out the subtle anomalies 1590, Tulsa. Oklahoma 74102 {91S} 627-3330. :::I o Important anomalies in the range from 0.5" to 5" missed in a or Seismograph Service Limited, Holwood, Keston, Kent, U,K .. Tel. Farnborough(Kent) i low-sensitivity survey are clearly "visible" with Aero's high 53355, '< sensitivity system. rnAERO SERVICE Seismograph Servic~Corporation ~ A Litton 'IllJ ,"_ SUBSIDIARY OF RAYTHEON COMPANY 7800 westpar1c. Drive. P.O. Box 1939, Houston, Texas nOO1 (713) 784-5800 4219 Van Kirk Street, PhMadelphia, Pennsytvania 19135 (215) 533-3900 390 N. Alpine Olive, Beverly Hills, California 9021 0 (213) 275-4523 October 1975 June 1972 Figure 160 Figure 161 I\) w CDw on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ ~ Turalr® Is the deepest penetratlno electr()maonetlc system In the w()rld. What is the deepest sulphide body you ~ \ ever found by ~lirbornee!ectromagnetjcs? .. \ If your DIlSWer is more that 200' you Nut so !onq a~Joyou could be happy with thIs RI1SWer, knowinq that this W~)Sas deep as Gould be nchieved Are you [l\Wlr(~ that yOl! can now qet much morc? Tit., T' ... ",;~'11"'~"" "'>1h _'f(IO(''''_f..~.'n "~",,.. A new approach How deep? (/) ~ CD ~ =: ,q"'~'''."~_. "",.~..,.h. 0' W("" :.i#i ,~..."""if We are applying geophysical McPhar's dipole-dipole expertise with large spread resistivity technique offers an Resistivity surveys in the economical and rapid method w;tnjlili'-: search for deep seated thermal of determining likely areas ...... flows. to drill for geothermal sources, - Our depth of resistivity expe McPhw GeophysIa Accurate measurements rience is at your disposal. giving resolutjon higher 139 Bond Avenue &R>\NCHES ANI) AGf::o.;TS• •41t/;;.OTl', '122 Snlder(:roft Rd" ConCl)rd, Ortt. o Don Mills, Ontario Telcphofl.\'! IUi1 889-3990 than other geothermal survey Write for a copy of our tech Canada Athem~Caktd-l.a, CU1'UC(18, Den- techniques have been made nica/ paper "Dipole-Dipole in highly conductive areas. Resistivity Results over East Ofl!ces: Vancouver, Tuc50n, ;:::tle?t!:~:rt::ag!~~l/:':~~'l~t=: Ade!alde, Mantia and Singapore Electrode separations of up Mesa geothermal anomaly. don~Mexico City. Mt)nt~lull.I IS£lnt.-ex Pf(ttlJt'iu~ ff to 12.000 feet have been used. Imperial Valley, California," Pr'rt/,.' Otwzon City, Rio tie Jilneiro~Sa'll l~ake City. a w().-td C)fdis£()'VefY Sytlney~TlIkr/o, \'mwout;-l'l', Complete Geopilysicallnstrurnentation nnd Services October 1973 April 1973 Figure 162 Figure 163 Ad History of Geophysical Technology 2395 GSI Introduces Interactive Terminal Systems For Seismic Data Evaluation GSI announces its new interactive be dewed at the terminal in travel times and veloeities obtain terminal system for man-machine Reveral different space-time-velo ed from a recently developed auto analysis and interpretation of city representation", and inter mated reflection picking package. seismic data. The system is now actively edited to ensure a reason available as a production process able velocity fwld for stacking, For more information about GSI's ing tool for velocity analysis and d€'pth ('om'ersion and migration, Interactiye Terminal System and subsurface model building. a\'ailability, write Geophysical The model building package pro The velocity analysis package vides the capability for an inter BoxServise ;)6_1, ?Inc.,. Dallas, P.O., ~',,:. ., . '.">. makes possible interactive veloeity preter to build mapping horizons Texas 75222. Or. inputting from any V vs T hard within a pro;;pect by interaeth'ely telephone AC 214: " 'i ;. copy display. These functions may selecting. sorting and editing 238-2139, '.:~> ® GEOPHYSICAL SERVICE INC. A SUBSIDIARY OF TEXAS INSTRUMENTS INCORPORATED Please mention GEOPHYSICS when answering adverti"crs December 1971 Figure 164 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf I\) Coo) ~ GEOPHY~ICS,Ana:ST 1973 A-33 A-32 GEOPHYSICS, ACGt:'ST IGn PRAKLA-SEISMOS GMBH· 3000 HANNOVER HAARSTRASSE 5 ~O.BOX4767· PHONE 80721·TELEX 922847·CABLE.PRAKLA GERMANY Real AmplitudeProcessing Amsterdnm Ankara Bnsbane Jakarta lima London Madnd MIlan Rangoon Alo de JaneIro· Singapore· Teheran Tripoli· Vienna For Offshore and Onshore Surveys including Vibroseis facilitates more objective Data Processing and Interpretation (I) Offshore line Alter Convenj,onal PrOCf'sslI'lg ::r CD 6krn • =... Offshore line After Real Arnpillurlv ProC<'b~lf1g August 1973 August 1973 Figure 165a Figure 165b a a n n :!: :!: i 0' 0' .:to .:to i i Q. Q. 0' 0' ...., ...., ~ ~ :r :r !. !. ~ ~ ~ ~ I I .g .g 'IIIC. 'IIIC. ore ore tJ tJ I I OF OF f f before. before. SERVICE SERVICE {jf~POI<-'\ {jf~POI<-'\ INSTRUMENTS INSTRUMENTS sueSIDIARY sueSIDIARY '\( '\( PI'ospect PI'ospect A A J J SE/scnopmapPlng. SE/scnopmapPlng. andlll 1976 1976 ever ever 167 167 a a TEXAS TEXAS GEOPHYSICAL GEOPHYSICAL Figure Figure February February than than ~eDsively ~eDsively laster laster Vievr Vievr &.youcan &.youcan GSllntrOduces GSllntrOduces 31' 31' 'f,;""" 'f,;""" 2171 M4$-SY M4$-SY MASSY MASSY (!'!lex (!'!lex 30) 30) 9! 9! ' ' CFGtGfC CFGtGfC G"I\I"4hl G"I\I"4hl 92fNJ4.08 92fNJ4.08 f 'IF:' 'IF:' (! (! COf1'lP&gnie COf1'lP&gnie ~~ ~~ C')f)!f! 1973 1973 PrOfiling PrOfiling 166 166 FI'Nlqing FI'Nlqing Figure Figure February February Line Line PM eGG eGG ® ® ® ® Wide Wide Tr;;uJeJWi,'k Tr;;uJeJWi,'k -tGG -tGG @ @ Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ = Bf'low: Teh('I~moored on \hor point !ocalton In northern Candda - ,pri'aci from off~horeline. to (In.~ho,!'Iln!.'~ - .. ENTURY II~ anddf;'te(ton, NavigariOn dnd enf;'rty source- vew.'I" III b..KkgfOulld ZaS-Trace Streamer Shallow water -- dll' are~ltrom ..,hort! to deep V.. ',l!l'f --. 11.1"alway.;; been a problem for ~l'ismiccrf'w~twcau:>l> of high currenb, drd'>flC depth ch<1nge'>, "iurf and coral reef", The Tel.,ei,:> Dlvi"ion 01 FJirfield IndlJ':-lrw'" Inc. h Tebels Tr,lnsmitter Sy~femlor tfw ...P Mt>':h r a!ftleld Tel~('i':>(few~u5ing thl'> ~y~temafC securing high quality d.lt.111l "hallow w,Her lucdllon.., ,lod remote areas of the world. Thi.., highly mobile e,lCh on ,1 different radio frt~qm\ll(\.. 'Jl'nd d,lt,l, not through a cable, but a.., a radio CENTURY II" Is a :.ignal which Cdn be ren'lH-:d at .1 di"f,IIKe up to .30 l11ill'~.1\ mJtchmg group of 208-trace Marine CENTURY II runs receiver':> d(Cf"ph the signdb, which ,He then it'd to Jny norm,l! "t't of sei"imic recording en Seismic Cable from quieter because its ~ instrument'> Seismic Engineering Multidyne. Hydrophones II The u!-€; of the Te!!.("i ... Tr,m">nllttt'f Sv"t~\1ll,lllow,> the r~cordll1gunit to remain Company that offers the have a 12 dB (or belter) signal ::!. ~tationaryin a sWble environnwnt in Camp, minirni.llng /lobe and other prob!em~ widest choice of group length selection_ to-noise ratiO advantage over conven :I: a:-,socialed with moving instrllllll'flb In ttw field. The ..,~'..,t('malso eHmin,ltes the need tional phones. They are uniqueiy balanced for drag cahles, b.1Y C-"lblE':', ~UriaCl'(dble:.., ,Ind c,lble c()nnector~,~lndthe vanou~ For lengths up to 4800 meiers, and acceleratiOn compensated, ignoring problem.., a~"ocii1tedwith thefll the CENTURY II provides 208 hydro the more troublesome towing, vessel and A Fairfield Telsei,:> crew C Rt>rrnud,l, Ph. 2Q·2; -200,1 pl('"." -l8u- ~1·70. fairfield SelectOillision. 29'J4 Blv~tnllt'1 M1f', tJ'lllJ~, 1(')<,,~ 75220, rJh: 214;Fif\·l54I, fl'i(''<; -3-0'i46 r ,,,h·I1I.,,k,» I """"ill l"'!\j'!',~-".if" February 1976 August 1976 Figure 168 Figure 169 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf S* Seismic Digital Telemetry System * Solid State Compositor/ Demultiplexer Mter four years of R&D these systems are being delivered. More than 50 representatives from international oil companies and major seismic contracturs have seen thp GUS-BUS and COX seismic 256 to 1024 Channel Recording anej ProcesslI1g ". a. systems dl'monstrate their ability to provide thp industry vvith the WITH latest seismic msfrumentatlOfl h-:chnology, For instance: ::z: TM Impro\,l~cri~\V r:fficiency up to 50()'~Jor standard profiling ~ Op to 1344 seismic channl'ls fur multiline and three-dimensional ~ protlling. withuut gi\-ing lip resolution Seismic Data AcquIsition and PrOCE'ssmg System Out-put the data. stackpd and un stacked, edited anu unedited, 2- resolution multi-channEll data acqul • Process data, including velocity and fre c;, rnultipipxpd or dt'multiplf~xed.no loops or disks. and full on-site data prOC8$Smg are quency analyses, COP stack. filleting and II now available with GEOCOR H {'1-•.' array forming on an otf-line basts Overn!9hl o SODhlsllcated techniQues with coded to enable an on-site evaluation of resulls 'a tor use in decisions on parameter or pro :::r gram direclton changes. • UIIli2:e in-line. cross-line. parallel-line. or 1 • Record simultaneously with 256 to 1024 two-dimensional geophone spread arrays n separate data channels. In a single setup. !!. • Correlate all channels '" the field in real • Record In a point-source palOl-detector time. mode, then simulale geophone arrays '" -I • Plot composited correlated 100% field rec the processing stage after stalic and dy" III ords concurrently with acqUisition opera namic correctIOns and noise analysis re :::r tions to permit immediate quality control. sults have been utilized. :::I GUS MANUFACTllRING, INC. o :\ SI!HSII}!ARY UF CLURE {':\IVERS,'\L SCIE:-.iCES. Ir-.;C i'< (lJ15! 5:J:l~62ll2• Tpil'X 74~J-442• P.O. Box 123:J8 201 Hdl!imon' • El Paso. Tt~xas7~lq12 Geophysical Systems Corporation (7131 777-2f185· 6507 AshLl'oft Houslon, Tpx.a~77081 '!'"",,'I"'ndW)i GEOPHYSICS, OCTOBER 1976 A·21 October 1976 March 1977 Figure 170 Figure 171 ~ :g on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ g (J) ;:, ...CD == The (iCS Seismic (;roup Ut'c()rdn t;';(;I~·III i~heUlg introduced aftt'f two PRAKlA-SEISMOS GMBH ~;t'arsof tleld history. Tht' S(a~··IIl~perhaps the most ext( HAARSTRASSE 5 • P.O. B. 4161 • 0 -3000 HANNOVER 1 sysl~~mever introdu,'f'd til tht, gl'ophysicaJ cOfl1mumty. PHONE, 80nl • TELEX, 922847 • CABLE, PRAKlA • GERMANY S(a~-llsystems are tJpnC'lting 111.1 \v!de range uf tlt'ld eo\'irOnnlellts. The St;R.-II is a practical ,ltlswt'r to ~'ournt'('d tor increased flexibility in recording instrument GEOPHYSICS, FEBRUARY 1977 A·7' February 1982 February lCJ77 Figure 172 Figure 173 Ad History of Geophysical Technology 2401 RELIABLE SHEAR WAVE DETECTION BOREHOLE PICK is a down-hole geo phone package for P wave and S wave TIME (x lJl00S0C \ measurements. P-S logging has become '0 '5 20 25 30 35 40 4S very important in foundation investiga tions; particularly when the dynamic response must be predicted for Aseismic ·design. The Borehole Pick has proven invaluable for these types of surveys. OVO'S BOREHOLE PICK is available in two basic types. Model 3310 includes a tri-axial geophone package installed in a self-clamping probe. The split case of the probe incorporates a water inflated rubber bladder which expands, forcing the metal portion against the hole wall. Supplied with the 3310; 100 meter hy draulic tubing, signal cable with stress member, pump and carrying case. In add ition the deluxe Model 3320 includes a hydrophone and flux-gate compass with a direction readout instrument. The system is available with 28, 14 or 10 Hz geophones. Hole diameter can vary from 2 inches to 3 inches (larger with a shim block). Write for literature and application notes on Shear Wave Measurements. P'WAVE OYO CORPORATION INSTRUMENTS DIVISION 2·19 Daitakubo 2 chome, Urawa, Saitama 336 JAPAN Phone 10488-82·5371)1Cable IOYO URAWA) 'Telex 10·2923·080 OYOJPN J) DISTRIBUTORS: U.S.A. NIMBUS INSTRUMENTS, 2791 Del Monte Street, West Sacramento, CA 95691 1916) 372-3800ITWX 910·367·3502 Europe· BEVAC, Rue de Lausanne 2, 1033 CHESEAUX·sur·Lausanne. Suisse 1021)91·1086187 WDS, 0·8000 Munich 40, Habsburgerstrasse 2, Germany 1089) 393033·34 Australia· AUSTRAL EXPLORATION. 5 Deloraine Road, Edwardstown, South Au.tral,", 1276)1233 TOKYO JAPA'" OYO CORPORATION GEOLOGICAL. GEOPHYSICAL AND GEOTECHNICAL SERVICES AND INSTRUMENTS AP·560·1 March ICJ77 Figure 174 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ OBSERVATION-THEORETICAL CI SEISMOLOGISTS I\) The California Institute of Technology is soliciting ap plications for a 1-2 year appointment as a postdoctoral research fellow. Applicants must have a strong background in both theoretical and observational seismology. induding normal mode and ~ynthetlCseismogram calculations. The research project') Involve determmation of attenuation in the Earth, analysi~and inversion of free OSCillation and Gulf Research & Development Company body wave data, and ~ludyof the structure of the Earth. has the following openings in our Explora ~ Interested persom are asked to ~endresumes to the Chair tion Deportment Harmarville about 1 5 at man, Di ...ision of Geological and Planetary Sciences, Cali fornia Institute of Technology, Pru.adena, Cali forma 91125, miles Northeast of Pittsburgh. An Aifirmaflve ActIOn MIF Equal Opportunity Employer, DIGITAL RESOURCES Research SOLID EARTH GEOPHYSICIST CORPORATION I he De [1.11tnll'nl (J! ('eU.":]l'llL'l'.,, Purdue Unl"'el .,11\, .,ed .. ., l'alllhti.tll'" lin .lle.lchlllg-ll'''l'.lfCh PthltHlll Geophysicist 111' SOIID-LAH.111 ('H)PIIYSICS. App!J\,:;Ulh .,huuld hdVL'.1 Ph.D. III geophy.,IC., or lel.lll'd fll'lt!, .11l ]l1ll'll,.,1 III IC.II.:hlllg ullticrgr.ltiu.t1l' geoph;.-.,Ic., The applicant should have 0 PhD in Geo is now interviewing for immediate L'\lUr.,c., .llltl gl.ldll.lll' COUI"l'., ill Ihell .,pe\':].t1I~,.Intl physics or equivalent qualifiCations, with .1 dCI11Iln.,II.IIl'd .lhtlll\ III L'()ntill...:t prot!W:IIVl' IC research experience in reflection seismol assignment to our overseas operations. "l'.tll.:!l pl(l}!I.l!lh, Po., \t"h H,:IIlr,tl , Illdu.,lrl.11. or llnivcr "II~l'XIX'HCIlCl' .lntl l'\lJllP.lllhi1ll~\'ollh .111l'Xp]IlI.ll]OIl ogy. Work involves applied research in gl'Ophy.,IL'" Illll'llll'd pIOgI.1111 ,til' hlghl;.- lk"II.lhll', H..lnk .tntl .,,11.11\ 1l'\L'j \'0111 he COrnml'n.,lIf;lll' Wllh time series analysis. empirical seismic ~U,I!Jrll·,!lIl)lh.S'Clltj .lppllcdIIOn., \\ llh rl,.,UTlW., .tnl! studies. and acoustic properties of rocks. n.ll1ll'" o! Idl'ICIlL'l'" 10 lk;lti. Dep.lrtll1clll of (icll SENIOR LEVEL "L1t'nce." PUldul' Ulllve",J!\, \-\ie.,t L·.IL[\elll', IN Attractive salary with considerable oppor ~74()7.PUlduc Un]\l""11\ l~.lll I'qll,1I Upp\lllunlt~1 tunity for future advancement. SEISMIC PROCESSING .t111Iill.I\I\l' ;ILlllllll'l11pl(l~l'l. GEOPHYSICISTS Senior en April 19J7 Research ::r REQUIREMENTS CD 4·6 years experience in processing of seismic data. Land Figure 175b .. experience preferred. Applicants must be self disciplined and Geophysicist :I highly motivated. The applicant should have several yeors of research experience In petroleum ex plarotlon seISmology with demonstrated REWARDS effectiveness. Attractive salary With con Generous remuneration includes a base salary, bonus, cost of Siderable opportunities for future ad living allowance, tax benefits, 30 day annual vacation with vancement technically or administratively. return trip to home of record and many other benefits. Address inquiries to: For consideration, send resume, including Dr. D. L. Cass salary history, in complete confidence to: Director Employment and Training Gulf Research & Development Company DIGITAL RESOURCES CORPORATION P.O. Drawer 2036 2411 Fountain View Drive Pittsburgh, PA. 15230 Suite 110 (713) 781-7062 ~ Houston, Texas 77057 An Equal Opportunity Employer M/F An Equal Opportunity Employer March 19J7 April 19J7 Figure 175a Figure 175c on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf .·····'·t"f<~~dhltIPrl·· Ck'alpha NUCLEAR alphaMETER AN INTEGRATING RADON METER • EXTREMELY SENSITIVE SOUD STATE DETECTOR • ONLY HOURS INSTEAD OF WEEKS INTEGRATION PERIODS • INSITU READOUT OF INTEGRATED DATA AND INTEGRATION TIME IN HOURS AND DECIMALS OF HOURS • SINGLE. INTEGRAL RUGGED ASSEMBLY CONTAINS ELECTRONICS. BATTERIES. CLOCK. AND DISPLAY • ECONOMY THROUGH THOUSANDS OF READINGS YEAR AFTER YEAR WEIGHT: ,7 kg (1.5 Ibs,) SIZE 5.1 em die. x 35 em (2~d!3,)( 14~) ----~--~---~--~-- The alphaMETER is a complete unit designed for man carried applications requiring accurate reliable measurements ~ of near-surface Radon gas concentrations_ Analysis of Radon gas concentrations aids in locating buried uranium deposits % that may not be detectable by the common surface gamma de· tection equipment The simplicity of this design applying the ~ sub·surface integrating technique allows rapid, accurate ins/tu data to be obtained from a very compact lightweight instru ~ ment The instrument detects and integrates the fluctuating presence of the radon gas over a relatively short period of 2- time (1-2 days) and provides a visual numeric display of the c:l Radon concentration and the number of hours of integration. CD Thus the data can be easily normalized to counts per hour o 'tI simply by dividing the data by hours ::r 1 alphaNUCLEAR Company n 6380B VISCOUNT ROAD !. MISSISSAUGA. ONTARIO. CANADA L4V 1H3 Telephone: (416) 676-1364 ~ Telex: 06-983611 ;,::r o As featured in this issue, page 982 i'< See us at the S.E. G. in Calgary. September 18·22. GEOPHYSICS. AUGUST 1917 A·45 GEOPHYSICS. OCTOBER 1976 A·57 August IfJ77 October 1976 Figure 177 Figure 176 i on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ ~ airborne "J multi-sensor systems "- ~:2IIIII!!:.1'C";-""~'""" .... • EXPLORATION • RESOURCE SURVEYS • GEOLOGICAL MAPPING SOME SURVEY APPLICATIONS MAJOR (e) AND AUXILIARY (0) l to.t'~J r~?:fic_('.1,s-""'.'P!',!~pe)::. 'i"o:'l'--o.L, IfoLe e j ~ ~~T;~~t~:~~~~""------,~-,--"---""-""--- --~ --- f -0- -~""g ,--t 0 r- ,-t --:.t -: - j i.i~~~!'~~ie:~~"_,.., .. ,.,.,._,___ -- J'e '1"'. t e' r 0'1 0 )::0 r!·: 4 • J i!:~1\~'--'-"'---'------.2· t O,t f~r.~. to °1° I (I) ~ ...CD ~~~::··~:-fjl~l 0. 1 :10 t] r == ~--~ ~!~!'''ttl''I.~n",~en''''.'-<2.eo,o.gtM.PPin~..t'__ l _____,~_.1 -_1_ 0 t • j 0. ,,1 §~_~!~~!!~~~t§!?!~I~~I~~!~_~!~~_.-L~---,-- ·l· -"·t 0 i ~ t ~__ ti- t- ~ Gravel and Sand i ' , o.! , I 1 ~·~~~'~~~~f::I:J::l;l.:!~·.;~l~: Fc:issi~FiiE~~ ~,~~. Oil L~~i__ !, 0 • • I,-k 304Carlingvlew Drive, 1826Cole Blvd . 3750-19thStreet N_E.. Metropolitan Toronto_ Suite 330, Suite 105, Rexdale, Ontario, Golden, Colorado, Calgary, Alberta, Canada M9W 002 U.S,A,80401 Canada T2E 6V2 hp,ARRlNG/OR Telex, 06-989-183 Telex: 45810 Telex: 03·827·584 Telephone' (416) 675-3670 Telephone: (303) 232·8811 Telephone: (403) 276-9701 April 1978 June 1980 Figure 178 Figure 179 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf HELICOPTER-ASSISTEDGRAVITY SURVEYS USING INERTIAL SURVEYING ..... TM ISOV£lOCl'nUt.;.t .Mil> :"';"I~ ...... ~ - ,~~huIt ___ ..... Seismic ProceSSing: ~ ::I: ~ ~ EDCON's HelicoptN-5upported Cravity with Inertial SurveYing System provides 9. Lmiform sampling of the earth's gravity field, even in remote, rugged aredS The uniform grid of stations provides data far superior to data cOllventionally acquired G') along roads and trails TO PREDICT d('~crihingthl~"urvf'~' ~ulveys intl~rprptations I Call or write Tor more Informatlon and other [DeON und LITHOLOGY AND ::r Pioche, Nevada gravity survey -=n Cr,nlt~"tdllOIl ....onhe:!1 h,,!! [)! 'IH'f', ,h')\\01 FLUID CONTENT. !!. R65f R;(J! ~ ::r \JeON o:::J i'< . " . "-30 GeophY5ics, August 1981 August 1981 December 1977 Figure 180 Figure 181 ~ 5: on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf i CGG and Geodigit present advanced Geophysics: YOU COULD LEARN A LOT FROM A Ivsp*l: ISHEARWAVEI SURVEYS HELPSTRATIGRAPHIC INTERPRETATION. ~ ~ P'SWAVlS 'WAW5 ,------A------[To - ~A= y' (Tn - Tn_ll, p A ~ .~ ••",~~~l~~~;. •. '1:' ~Implitude spectrum ),nea,"ale) ~-t. ---- "ilRTi.'N;'.M~ -3- -.'.... ;; .. ~~~__ --4------I' USITUI. Down going reflection (A21 of 5 -- ~7Fijli.i-1 - eUIU,U 11 Ptime scale 1- - , I I o o I 80Hz ::r " " 60 ..eD Reflection A appears in Al recorded directly and in A2 after travelling twice through the surface horizons. No Pwaves velocity analysis is as sensitive to vanations in the mechanical properhes of geological formations == Time shift has been applied. as the simple ratio of travel times (Tn- Tn-VpI(T" - Tn-V.= V.;vp When try shear waves? • Filtering effect due to wave • Estimate of dips of mirrors including • When the exploration target is a reservoir due to fracturing propagation through the geological those located under the well bottom. • When the usual criteria fail.to diagnose the cause of an amplitude anomaly. layers, specially the weathered zone. • Correlation between P & S events • Differences between primary and when three component detectors multiple reflection spectra. are used. Head Office Oifte,O!flc ... ~GNEIOD!.IlrG lifT • Exact tie with all mirrors intersected 6, rue Galvani 91301 Massy :!~I:~~~B~~gkok, by the well. (france). Bagdad, Ph. 920.84.08. Buenos Aires, Damascus, Telex 692442 F. Denver, Houston, Jackson, Jakarta, Proc.ssing c.n ...... Jeddah, Kuwait, Processing centers. Mossy, londan, lisbon, Milan, Ottawa, Calgory, 1403)265 - 7540. -VSP : Vertical Seismic Profile = record obtained by lowering a group of geophones evenly spaced at short Madrid, Port-Gentil, Rio de Janeiro, Singapore, Denver: (303) 893 - 1617. intervals and by recording a succession af ~ismicshots at the surface. II Rabat, Tripoli. Tehran, Tunis. Houston: (713) 784 - 0740. December 1978 December 1978 Figure 182a Figure 182b Ad History of Geophysical Technology 2407 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 Development Geophysics can provide: rN~Iq, ;Wil • A continuous image ofthe structure t-'''~b ~~\'IIIJ -C~,_, •..-, ....'" • Spatial variations of facies and it ~'\'! ~ C""'If1i'Ij""" .. ,\1$, N~,~"', porosity. !j; O,l ~.,~~'!!t ___!. • A means of mapping the progress of a fireflood, steamflood or gas injection. eGG will help yOU: • Design an effective program within your budget by selecting appropriate methods. • Simulate their results. • Record, process and interpret field data. Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 Ad History of Geophysical Technology 2409 Table 1.1. Chronology 0/ seismic instrumelltation and methods. (Dates are approximate .. secrecy and competition o/tell ill wIved del:e1opment and use 0/ the same /ealllre by Ad figure set'eral companies IritllOlit pllhlic discloslIre.) and date 1914 Mintrop's mechanical seismograph 1917 Fessenden patent on seismic method 1921 Seismic reOection work by Geological Engineering Co 1923 Refraction exploration by Seismos in Mexico and Texas 1925 Fan-shooting method Electrical refraction seismograph Radio used for communications and/or time-break 1926 KeOection correlation method 1929 ReOection dip shooting 1931 Reversed refraction profiling lJ se of uphole phone Truck-mounted drill 1932 Automatic gain control Interchangeable filters 1933 Use of mUltiple geophones per group Fig. 6, 1936 - 1936 Rieber sonograph. first reproducible recording 1939 Use of closed loops to check misties 1942 Record sect ions Mixing 1944 Large-scale marine surveying Large patterns 1947 Marine shooting with Shoran 1949 Optical mirragraph Fig.lIO, 1960 -1950 Common-depth-point method- Fig. 79, 1953- 1951 Medium-range radionavigation Fig. 71, 1953 -1952 Analog mJgnetic recording- Fig.lIl, 1962-1953 Vibroseis recording- Fig. 85, 1954 \Veight-dropping Fig. 93, 1955 -1954 Continuous velocity logging Fig. 78, 1955 -llJ55 Moveable magnetic heads Fig.100, 1956-1956 Central data processing Fig.l04, 1960 -1961-2 Analog deconvolution and velocity filtering Fig.121, 1964- 1963 DigitJI data recording- Fig.141, 1967-1965 Airgun seismic source 1967 Depth controllers on marine streamer Fig.165, 1973 -1972 Bright spot· Fig.170, 1976 -1974 Digitization in the field 1975 Seismic stratigraphy Fig.166, 1973-1976 Three-dimensional surveying -The acceptance of these methods is shown in fig. 1.20. Table of seismic chronology from Sheriff and Geldart, 1982. Figure 185 Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf by guest on 03 October 2021 on 03 October 2021 by guest Downloaded from http://pubs.geoscienceworld.org/geophysics/article-pdf/50/12/2299/3163829/2299.pdf ~ CI Fig.1.20. Percentage of US seismic activity involving various techniques. (Data from SEG annual Geophysical Activity Reports.) 100" I _I --- ....'4 'i>''''&/ 0' ~"/ 4~'~~ "'-/ ~.,~ ;/.~ 'r-"/' , / sor;e , - ." ...... " g I) "" ' "00 " "if c:: i ...c:: ~ ." ... J /' i ... ." i/ 0 "" u :.~"CI ...GI ' cu "Co "" ... u " I I ... 0 ... " e : !lIE!GI ~ "",1>,'.,ov'<'~"'" .....,I u ...'" GI ...... "" <;,v,~,>~, ...... en :g .",.... "" cu .c "" o ... c:: co ...... " .!i :::.' ",/ ' co ... Po" .0 co ...... ::l e ~ e > .::l gl m ,,_4,J ,...... '" '"... ~,..., ~'" '" ....'" ...... f>< r.. f>< r.. f>< ....-:- ,1 1'15.1 19hO 1<)70 19MO Graph of acceptance of seismic methods from Sheriff and Geldart, 1982. Figure 186