Different Types of Logging
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CL Jones, CG Bowles, and KG Bell Released to Open Tiles This Report Is
EXPEm:MENTAL DRILL HOLE LOGGIlIl IN PO'W!R DEPOSITS OF THE CARISBAD DISTRICT, N»1 MEXICO C. L. Jones, C. G. Bowles, and K. G. Bell TJ. S. GEOLOGICAL SURVEY This report is prelimi:csry\ "-- and has not been edtted or ,,"- Released to open tiles reviewed tor conformity to ~ /' r- /'-' Geological Survey standards _~(1..~~_'--:_ '~_ ~~~~ .. .. I or nomenclature. / ,I 1- COtll'e:tf!'S; Page Abstract -------------~------------------------------------------1 ~troduct1on -------------------------------------------------7- 2 4 Geology -----------------------------------------------------~- ---------------------------------------------------~-- 7 Equipment .. 8 Drill hole data ----------------------------------------------~-- Supplementary ~e8ts -~_._----_.------------------------------~--- 10 Gamma-ray logs --~------------------------------------------y----11 Grade aDd th1clc1ess est1mates f'rom gamma-ray logs ---------- 14 l'leutron lop -------------....--------..........---.....------.------------ l5 Electrical resistivity logs ------------------------------------ 18 21 Literature cited -----------------------------------------._----- ILLUSTRATIONS Figure 1. Generalized columnar section and radioactivity log of potassium-bearing rocks -------------------------- 2. Abridged gamma-ray logs recorded by commercial All companies and the U. S. Geological Survey --------------- figures Lithologie, gamma-ray, neutron, and electrical resistiVity logs .-------~-_.---------------.------------ are in 4. Abridged gamma-ray and graphic logs of a potash -
Hydrocarbon Exploration Activities in South Africa
Hydrocarbon Exploration Activities in South Africa Anthea Davids [email protected] AAPG APRIL 2014 Petroleum Agency SA - oil and gas exploration and production regulator 1. Update on latest exploration activity 2. Some highlights and important upcoming events 3. Comments on shale gas Exploration map 3 years ago Exploration map 1 year ago Exploration map at APPEX 2014 Exploration map at AAPG ICE 2014 Offshore exploration SunguSungu 7 Production Rights 12 Exploration Rights 16 Technical Cooperation Permits Cairn India (60%) PetroSA (40%) West Coast Sungu Sungu Sunbird (76%) Anadarko (65%) PetroSA (24%) PetroSA (35%) Thombo (75%) Shallow-water Afren (25%) • Cairn India, PetroSA, Thombo, Afren, Sasol PetroSA (50%) • Sunbird - Production Shell International Sasol (50%) right around Ibhubesi Mid-Basin – BHP Billiton (90%) • Sungu Sungu Global (10%) Deep water – • Shell • BHP Billiton • OK Energy Southern basin • Anadarko and PetroSA • Silwerwave Energy PetroSA (20%) • New Age Anadarko (80%) • Rhino Oil • Imaforce Silver Wave Energy Greater Outeniqia Basin - comprising the Bredasdorp, Pletmos, Gamtoos, Algoa and Southern Outeniqua sub-basins South Coast PetroSA, ExonMobil with Impact, Bayfield, NewAge and Rift Petroleum in shallower waters. Total, CNR and Silverwave in deep water Bayfield PetroSA Energy New Age(50%) Rift(50%0 Total CNR (50%) Impact Africa Total (50%) South Coast Partnership Opportunities ExxonMobil (75%) East Impact Africa (25%) Coast Silver Wave Sasol ExxonMobil (75%) ExxonMobil Impact Africa (25%) Rights and major -
Deep River and Dan River Triassic Basins: Shale Inorganic Geochemistry for Geosteering and Environmental Baseline Hydraulic Fracturing
Deep River and Dan River Triassic basins: Shale inorganic geochemistry for geosteering and environmental baseline hydraulic fracturing By Jeffrey C. Reid North Carolina Geological Survey Open-File Report 2019-01 February 20, 2019 Suggested citation: Reid, Jeffrey C., 2019, Deep River and Dan River Triassic basins, North Carolina: Shale inorganic geochemistry for geosteering and environmental baseline hydraulic fracturing, North Carolina Geological Survey, Open File Report 2019-01, 10 pages, 4 appendices. Contents Page Contents ……………………………………………………………………………………. 1 Abstract …………………………………………………………………………………….. 2 Introduction and objectives ……………………………………………………………….. 3 Methodology and analytical techniques …………………………………………………… 4 Deep River basin (Sanford sub-basin) ……...……………………………………… 4 Dan River basin ……………………………………………………………………. 4 Summary and conclusions …………………………………………………………………. 5 References cited ……………………………………………………………………………. 6 Acknowledgement …………………………………………………………………………. 8 Figure Figure 1. Map showing the locations of the Sanford sub-basin, Deep River basin, and the Dan River basin, North Carolina (after Reid and Milici, 2008). Table Table 1. List of analytical method abbreviations used. Appendices Appendix 1. Deep River basin, Sanford sub-basin, inorganic chemistry – Certificate of analysis and data table. Appendix 2. Deep River basin inorganic chemistry – Inorganic chemistry plots by drill hole. Appendix 3. Dan River basin inorganic chemistry – Certificate of analysis and data table. Appendix 4. Dan River basin inorganic chemistry -
Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden Geofysisk Borrhålsloggning I Apatitjärnmalmer, Norra Bergslagen
Independent Project at the Department of Earth Sciences Självständigt arbete vid Institutionen för geovetenskaper 2017: 32 Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden Geofysisk borrhålsloggning i apatitjärnmalmer, norra Bergslagen Philip Johansson DEPARTMENT OF EARTH SCIENCES INSTITUTIONEN FÖR GEOVETENSKAPER Independent Project at the Department of Earth Sciences Självständigt arbete vid Institutionen för geovetenskaper 2017: 32 Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden Geofysisk borrhålsloggning i apatitjärnmalmer, norra Bergslagen Philip Johansson Copyright © Philip Johansson Published at Department of Earth Sciences, Uppsala University (www.geo.uu.se), Uppsala, 2017 Abstract Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden Philip Johansson Geophysical methods are frequently applied in conjunction with exploration efforts to increase the understanding of the surveyed area. Their purpose is to determine the nature of the geophysical response of the subsurface, which can reveal the lithological and structural character. By combining geophysical measurements with the drill core data, greater clarity can be achieved about the structures and lithology of the borehole. The purpose of the project was to give the student an opportunity to discover borehole logging operations and to have a greater understanding of the local geology, in particular the iron mineralizations in the apatite iron ore intersected by the boreholes. -
6. the BOREHOLE ENVIRONMENT 6.1 Introduction 6.2 Overburden
Petrophysics MSc Course Notes The Borehole Environment 6. THE BOREHOLE ENVIRONMENT 6.1 Introduction Wireline logging has a single clearly defined purpose: to give accurate and representative data on the physical properties of the rock formations and fluids encountered in a borehole. The tools used to take these readings have to cope with extremely tough conditions downhole, particularly, high temperatures and pressures, inhospitable chemical conditions and the physical constraints imposed by the physics of the measurements and the borehole geometry. It should also be remembered that we are interested in the properties of the rocks in undisturbed conditions, and the act of drilling the borehole is the single most disturbing thing that we can do to a formation. 6.2 Overburden Pressures The formations in the sub-surface are at raised pressure, and are occupied by fluids which are also at high pressure. The pressure that a rock is subjected to at a given depth is determined by the weight of the rock above it, and hence the density of that rock. This is called the overburden pressure or sometimes the lithostatic pressure (note that, to a first approximation, the overburden pressure is the same in all directions (isotropic)). We can write an equation to describe the overburden pressure (6.1) Pover = rrock g h where, Pover = the overburden pressure at depth h rrock = the mean rock density above the depth in question g = the acceleration due to gravity h = the depth to the measurement point. Clearly the rock above a given depth will have a varied lithology and porosity and hence a varying density. -
GW-MLE Mud Logging Equipment
GW-MLE Mud Logging Equipment Science & Technology Management Department, CNPC 2015 CHINA NATIONAL PETROLEUM CORPORATION GW-MLE Mud Logging Equipment: “Penetrating Eyesight” of Petroleum Drilling! Contents 1 Introduction 3 2 Characteristic Technologies 6 3 Typical Cases 15 4 Scientific Research Equipment 18 5 Qualification Standards 20 6 Expert Team 22 China National Petroleum Corporation (CNPC) CNPC was ranked 3th among the world’s largest is a state-authorized investment agency and a 50 oil companies and 4th in Fortune Global 500 in state holding company. On July 1998, with the 2014. implementation of the Institutional reform of the CNPC strictly follows by the combined strategies State Council, CNPC was reorgnized to become of increasing resource capacity, expanding market an integrated oil company of cross-regions, cross- shares and consolidating the international role, and industries and cross-countries, it adopts modern persists in regarding technical innovation as a key enterprise system to realize the integrations of framework to advance technological progress. To upstream and downstream operations, internal and develop its core businesses, focuses will be placed external trade, production and marketing. CNPC’s on the solutions of key bottleneck technologies business covers six main sectors: oil and gas and key proprietary technologies. Thanks to operations, petroleum engineering service, petroleum continuously improving of the technical innovation engineering construction, petroleum equipment system, optimizing the configuration of technological manufacturing, financial services and new energy resources and strengthening the construction of development. In 2014 CNPC produced 113.67 million strong talent teams, CNPC’s technological creativity tons of crude oil and 95.46 billion cubic meters of has been considerably upgraded. -
Anomalies in Resistivity Logs Caused by Borehole Environment
Anomalies in Resistivity Logs Caused by Borehole Environment Ko Ko Kyi, Retired Principal Petrophysicist Resistivity logs are critical input data for petrophysical evaluation as they are used for identification of possible hydrocarbon bearing intervals, as well as determination of water saturation in reservoirs of interest. Therefore, it is important to ensure that resistivity logs are properly acquired, using appropriate type of resistivity logging tools, suitable for the borehole environment, such as hole size, type of mud, mud salinity etc., in which these tools are deployed. Generally, resistivity logging tools are divided into two main types, namely induction tools and laterolog tools. Induction resistivity tools are used in non-conductive or fresh mud and the laterolog resistivity tools are used in conductive or high salinity muds. In addition to the drilling mud, hole size also has an effect on the resistivity logging tools. Wireline logging tools are generally 3 ½ to 4 inches in diameter and are not suitable for very big holes as the mud around the tool will have significant influence on the tool response. Even Logging While Drilling (LWD) tools have limitations on the size of the hole in which they can be deployed effectively. A very saline mud inside a large borehole can have serious effects on the response of an induction logging tool. Borehole size, as well as eccentricity of the LWD resistivity tool can have deleterious effects on resistivity logs. LWD resistivity tools work on similar principle as the wireline induction resistivity tool and therefore borehole size, high salinity mud, eccentricity can cause anomalous readings of the LWD resistivity tool. -
Determination of Paleocurrent Directions Based on Well Logging Technology Aiming at the Lower Third Member of the Shahejie Forma
water Article Determination of Paleocurrent Directions Based on Well Logging Technology Aiming at the Lower Third Member of the Shahejie Formation in the Chezhen Depression and Its Implications Yangjun Gao 1,2, Furong Li 2,3, Shilong Shi 2 and Ye Chen 1,4,* 1 School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China; [email protected] 2 Shengli Oilfield Branch Company, SINOPEC, Dongying 257001, China; [email protected] (F.L.); [email protected] (S.S.) 3 Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China 4 School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China * Correspondence: [email protected] Abstract: The Bohai Bay basin, mainly formed in the Cenozoic, is an important storehouse of groundwater in the North China Plain. The sedimentary deposits transported by paleocurrents often provided favorable conditions for the enrichment of modern liquid reservoirs. However, due to limited seismic and well logging data, studies focused on the macroscopic directions of paleocurrents L are scarce. In this study, we obtained a series of well logging data for the sedimentary layers of Es3 Formation in the Chezhen depression. The results indicate the sources of paleocurrents from the northeast, northwest, and west to a center of subsidence in the northern Chezhen depression at that Citation: Gao, Y.; Li, F.; Shi, S.; time. Based on the well testing data, the physical properties of the layers from Es L Formation in Chen, Y. Determination of 3 Paleocurrent Directions Based on this region were generally poor, but two abnormal overpressure zones were found at 3700–3800 m Well Logging Technology Aiming at and 4100–4300 m deep intervals, suggesting potential high-quality underground liquid reservoirs. -
Well Logging
University of Kirkuk / Faculty of Science / Applied geology department rd 3 year 2020 WELL LOGGING Dr. Radhwan Khaleel Hayder INTRODUCTION: -What is a “Log” and ‘’Well Logging’’. LOG OR WELL LOGGING (THE BOREHOLE IMAGE): - Data are organized and interpreted by depth and represented on a graph called a log (a record of information about the formations through which a well has been drilled). - Visual inspection of samples brought to the surface (geological logs). Example cuttings and corres. - Study of the physical properties of rocks and the fluids through which the bore hole is drilled. - Traditionally logs are display on girded papers. Now a days the log may be taken as films, images and in digital format. - Some types of well logs can be done during any phase of a well's history: drilling, completing, producing or abandoning. -Well logging is performed in boreholes drilled for the oil and gas, groundwater, mineral, environmental and geotechnical studies. -The first electrical resistivity well log was taken in France, in 1927. THE IMPORTANCE OF WELL LOGGING: 1-Determination of lithology. 2-Determination of reservoir characteristics (e.g. porosity, saturation, permeability). 3-Determination formation dip and hole size. 4-Identification of productive zones, to determine depth and thickness of zones. 5-Distinguish between oil, gas, or water in a reservoir, and to estimate hydrocarbon reserves. 6-Geologic maps developed from log interpretation help with determining facies relationships and drilling locations. 1 ADVANTAGES AND LIMITATIONS OF WELL LOGGING: Advantages: 1- Continuous measurements. 2- Easy and quick to work with. 3- Short time acquisition. 4- Economical. Limitations: 1- Indirect measurements. -
Drilling Fluid Systems & Products
Drilling Fluid Systems & Products Drilling Solutions Version 6 Table of contents Overview 2 Integrated Solutions 6 Integrated Borehole Strengthening Solutions (I-BOSS) 6 OPTI-STRESS 8 Drilling Fluid Simulation Software 9 OPTIBRIDGE 9 PRESS PRO RT 10 VIRTUAL HYDRAULICS 12 Drilling Fluid Systems & Products 13 Water-Base Systems DRILPLEX 13 DRILPLEX AR PLUS 14 DURATHERM 15 ENVIROTHERM NT 16 GLYDRIL 18 K-MAG 19 KLA-SHIELD 20 POLY-PLUS 21 ULTRADRIL 22 Oil-base Systems ECOGREEN 24 ENVIROVERT 25 MEGADRIL 26 RHADIANT 27 RHELIANT 28 VERSACLEAN/VERSADRIL 29 Synthetic-Base Systems PARALAND 30 PARATHERM/VERSATHERM 31 Non-Aqueous Systems WARP Advanced Fluids Technology 32 Drilling Fluid Products 34 Product Summaries 34 Drilling Fluid Systems & Products Version 6 1 Overview The M-I SWACO solutions mindset permeates our company and positively influences the problem-solving orientation we have toward our clients, the solutions we deliver, our new-technology advancement, people development within our company and our future strategies. Starting with the basic building blocks of Before people work for M-I SWACO, training for the job at hand, M-I SWACO instructors quickly bring new specialists a Schlumberger company, we screen up to speed in the disciplines required for them to deliver maximum value them not only for current skills from our products and services. M-I SWACO ensures customers around and experience, but also for their the world get the highest level of service by standardizing training courses to willingness to learn new things, solve meet the universal expectations of all operators. Where locale dictates problems and help others. Once they certain specialized practices, M-I SWACO trainers prepare field join the M-I SWACO organization, personnel for those details as well. -
2767738 Automation Provides Unique Insights of the Rock Record And
ID: - 2767738 Automation Provides Unique Insights of The Rock Record and Subsurface Through the Delivery of a Robotic Sample Collection and Analysis Device David Tonner, Diversified Well Logging, Houston TX, USA, Aaron Swanson, Diversified Well Logging, Houston TX, USA, Ron Hollingshead, Diversified Well Logging Houston TX, USA, Simon Hughes, Diversified Well Logging Houston TX, USA , Stephen Seacrest, PetroLegacy Energy Austin TX, USA, Bret McDaniel PetroLegacy Energy Austin TX, USA ABSTRACT Abstract Objectives/Scope: From the very early days of oil and gas exploration, appraisal and development drilling, samples have been collected at the rig by mud logging personnel to conduct a preliminary geological analysis of the rock being drilled. This collection typically involves a sample collection recipient, board or bucket to collect a sample of rock over the desired interval. The sample is then sieved and cleaned in the appropriate way depending on the type of drilling fluid being used. As penetration rates have increased in some instances to more than 400 ft. / hr. the sample resolution has deteriorated exponentially. From an ergonomics perspective, the highest frequency to which a person onsite can collect a sample is once every 20 minutes. At 300 ft. / hr. this translates to 100 ft. of drilled rock. A new device has been developed and deployed which automates this manual process and thus ensures faster and more accurate collection of geological samples of the drilled rock interval. Sample resolutions of 5ft rock intervals have been attained at 400 ft./ hr. This technology has provided an important technological breakthrough and enables reduction of personnel at the rig site with a subsequent reduction in cost and HSE risk, particularly in areas of H2S. -
Final 2000 (1 Parte).Pdf
“MEDITERRANEAN - SEA OF OPPORTUNITIES” have the pleasure of inviting you to attend the fifth Offshore Mediterranean Conference and Exhibition that will take place in IRavenna, Italy, on March 28-30, 2001. OMC 2001 will be the first important petroleum event in the Mediterranean area of the Third Millennium, the first decades of which will undoubtedly be of dramatical importance for the oil industry dedicating huge efforts and funds in innovation and new technologies, as well as inve- sting in the construction of infrastructures for the transfer of energy. In fact the boiling projects and ideas where to ship the huge reserves of oil and gas from North Africa, the Middle East and Central Asia are converging into the Mediterranean. That is why the general theme of the forthcoming OMC 2001 is: “Mediterranean – Sea of Opportunities” Eminent keynote speakers will discuss “The Evolving Geo-economics of the Oil & Gas in the Mediterranean” during the Opening Plenary Session on March 28, 2001 while the programme of the closing day includes a Round Table on E-Business. Moreover a Panel Session on “Environmental Issues Related to Exploitation and Decommissioning of Offshore Platforms” is scheduled on Thursday morning. Representatives from the involved countries, like Egypt, Libya, Algeria, Tunisia, Iraq, Europe and Central Asia Countries will highlight their view- points offering the international oil industry convened at OMC 2001 the chance to better plan and monitor future investments in the Mediterranean area. The conference programme will comprise three parallel sessions covering all aspects of the Exploration and Production activities, as well as special session dedicated to Instrumentation and Automation Systems applied to Offshore industry.