DOCSLIB.ORG

OFR 2019–1114: Multiple-Well Monitoring Site Adjacent to the Lost

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
OFR 2019–1114: Multiple-Well Monitoring Site Adjacent to the Lost Prepared in cooperation with California State Water Resources Control Board Multiple-Well Monitoring Site Adjacent to the Lost Hills Oil Field, Kern County, California The U.S. Geological Survey (USGS), in cooperation with the California State Study Area Water Resources Control Board, is evaluating several questions about oil and gas The LHSP is in the Kern development and groundwater resources in California, including (1) the location of County subbasin of the San Joaquin groundwater resources; (2) the proximity of oil and gas operations and groundwater and Valley groundwater basin situated the geologic materials between them; (3) evidence for or against fluids from oil and gas on the southern end of the Tulare sources in groundwater; and (4) the pathways or processes responsible when fluids from Lake Hydrologic Region (California oil and gas sources are present in groundwater (U.S. Geological Survey, 2019). As part Department of Water Resources, 2016; of this evaluation, the USGS installed a multiple-well monitoring site in the southern fig. 1). The LHSP is approximately San Joaquin Valley near Lost Hills, California, adjacent to the Lost Hills oil field 1,400 feet (ft) east and downgradient (fig. 1). Data collected at the Lost Hills multiple-well monitoring site (LHSP) provide from the Lost Hills oil and gas field information about the geology, hydrology, geophysics, and geochemistry of the aquifer administrative boundary. system, thus enhancing understanding of relations between adjacent groundwater and Primary water-bearing units that the Lost Hills oil field in an area where there is little groundwater data.This report comprise the major aquifers on the presents construction information for the LHSP and initial geohydrologic data collected west side of the Tulare Lake region from the site. include alluvial and river sediments of Holocene age, older alluvium and Figure 1. Location of Lost Hills multiple-well monitoring well site (LHSP) and selected other terrace deposits of Pleistocene age, wells in relation to the Lost Hills oil field, Kern County, California. and Pliocene-Pleistocene-age Tulare Formation (Woodring, 1940; California Department of Water Resources, 2015). 120° 45' 30' AR C R C EXPLANATION Area of historical produced water storage Oil and gas field administrative boundary 45' County boundary s! Lost Hills multiple-well monitoring site (LHSP) Disposal well 5 33 Injection well s! LHSP Oil and gas production well Plugged or buried well CALIFORNIA 35°37'30" Sacramento Tulare Lake Lost Hills Hydrologic 46 Region Modesto San Joaquin Valley groundwater basin Corcoran Bakersfield Kern County subbasin San Diego Base modified from U.S. Geological Survey and other Federal and State digital data, Oil and gas well data from the California Department of Conservation, 2018. various scales; Albers Equal-Area Conic projection, standard parallels are 29°30’ N. and 45°30’ N.; North American Datum of 1983 0 1 2 3 4 5 MILES 0 1 2 3 4 5 KILOMETERS U.S. Department of the Interior ISSN 2331-1258 (online) Open-File Report 2019–1114 U.S. Geological Survey https://doi.org/10.3133/ofr20191114 February 2020 Most groundwater studies of the Central from a range of historical and current oil natural gamma, resistivity (16- and Valley define hydrogeologic units— and gas development activities. These 64-inch), spontaneous potential (SP), aquifers and confining layers, rather than activities include surface spills, leakage electromagnetic induction (conductivity), stratigraphic units (Faunt, 2009). At the of produced water from disposal ponds, full wave sonic (delta-T), and Nuclear LHSP, the stratigraphic units are defined; injection of fluids into the subsurface for Magnetic Resonance (NMR) porosity therefore, the aquifer system is discussed enhanced recovery and produced-water (fig. 2). Logging in the small-diameter as the alluvial and Tulare aquifer systems disposal, and potential introduction of pilot hole was advantageous because even though they function regionally as preferential pathways through leaky or it allowed for higher-quality logs to be a single water-yielding unit. Numerous improperly abandoned oil and gas wells collected than in the larger diameter lenses of fine-grained sediments are or test holes (Davis and others, 2018a; holes. Well-screen and filter-pack distributed throughout the San Joaquin Gillespie and others, 2019b). intervals were selected based on the Valley; these generally constitute more The land surface and confining clay geophysical and lithologic data. The than 50 percent of the total thickness layers slope downward gradually from pilot hole was then reamed to increase of the valley fill (Faunt, 2009). Faunt the Lost Hills oil field toward the LHSP the borehole diameter to allow for the (2009) also noted that sediments in the borehole (Gillespie and others, 2019b). construction of the five-well monitoring western part of the San Joaquin Valley The LHSP is approximately 4,500 ft site. The deepest well (LHSP #1) was are generally finer-grained than sediments from the nearest active oil well, 4,500 ft constructed with 2.5-inch-diameter located to the east. from the nearest active steam flood well polyvinyl chloride (PVC) casing to allow The primary confining unit in (injection of steam for enhanced recovery for future geophysical logging, and the the aquifer system of the Tulare Lake of oil), 6,000 ft from the nearest produced shallower four wells were constructed Hydrologic Region is the Corcoran water disposal well, and 7,000 ft from with 2-inch-diameter PVC casing. The Clay (Frink and Kues, 1954) and its the nearest water flood well (injection of wells were installed with screened equivalent, the E-clay of Croft (1972). produced water for enhanced recovery intervals from 1,780 to 1,800 (LHSP For the purposes of this brief discussion, of oil). There is a high concentration of #1); 1,110 to 1,130 (LHSP #2); 700 to the Corcoran Clay and the Corcoran oil-production activities near the LHSP. 720 (LHSP #3); 490 to 510 (LHSP #4); Clay equivalent are simply referred to as Activities within 2 mi to the south and and 210 to 230 (LHSP #5) ft bls (fig. 2; the Corcoran Clay. The Corcoran Clay west of the LHSP include 22 water- table 1). A filter pack of #3 sand was underlies approximately the western disposal wells, 1,020 steam-flood wells, installed around each screen, and a low- two thirds of the San Joaquin Valley and 22 water-flood wells that are active, permeability bentonite grout was placed extending from the southern edge of the inactive, or new; 1,480 oil- or gas- in the depth intervals between the filter valley, near Kern Lake (not shown), to production wells that are active, inactive, packs to isolate each of the wells. north of Modesto (Faunt, 2009). The or new; 832 wells that are plugged or After construction was completed, Corcoran Clay is thicker in an area buried; and 3 areas where produced the wells were developed by using between Lost Hills and Corcoran, located water-storage ponds have been or are airlifting and a surging technique with about 35 miles (mi) to the north, and currently located (California Department compressed air to remove drilling fluid may be as thick as 200 ft approximately of Conservation, 2018). and develop the filter pack surrounding 14 mi north of Lost Hills (Faunt, 2009). each monitoring well. The field The Corcoran Clay is between 272 and Drilling and Well Installation parameters that were recorded during the 338 feet below land surface (ft bls) at process include specific conductance, pH, the LHSP. Locally, Faunt (2009) and The LHSP pilot borehole, with a water temperature, apparent color, and diameter ranging from 8 1/ to 7 5/ inches, Gillespie and others (2019b) show the 2 8 turbidity. Well development continued western edge of the clay is generally was drilled to a depth of 1,880 ft until no discernible drilling mud was coincident with the eastern edge of the bls during March 2018 using direct present and field parameters were Lost Hills oil and gas field. mud-rotary drilling techniques. Drill stabilized. The average flow rate and The LHSP location was selected cuttings were collected throughout the development time was used to estimate to provide better information regarding drilling process and analyzed (along the total discharge and total purge vertical and lateral changes in with notes from the on-site geologist) volumes of the casing and sand pack groundwater gradients and water quality to summarize the lithology (fig. 2) (table 2). After well development, the of the alluvial and Tulare aquifer system. following the procedures described by turbidity of all wells, except LHSP #1, The site is located east of the Lost Everett and others (2013). To assist was below 10 nephelometric turbidity Hills field and downgradient from the in the identification of lithologic and units (NTU; table 2). The higher turbidity intensively developed oil field where stratigraphic units, geophysical logging in LHSP #1, 105 NTU, is assumed to the potential presence of oil-field fluids of the borehole was done before well be a result of the formation because in overlying and adjacent groundwater construction using techniques described the appearance of the water resembled zones exist either from naturally by Keys and MacCary, 1971; Shuter the color of the clays and silts of the existing oil and gas shows in aquifers and Teasdale, 1989; Keys, 1990; and formation/cuttings samples collected in proximity to oil fields or resulting Kenyon and others, 1995. Geophysical during drilling. logs
Load more

Recommended publications
  • Source-Rock Geochemistry of the San Joaquin Basin Province, California
    Petroleum Systems and Geologic Assessment of Oil and Gas in the San Joaquin Basin Province, California Chapter 11 Source-Rock Geochemistry of the San Joaquin Basin Province, California By Kenneth E. Peters, Leslie B. Magoon, Zenon C. Valin, and Paul G. Lillis HIO for all source-rock units except the Tumey formation of Contents Atwill (1935). Abstract-----------------------------------------------------------------------------------1 Thick, organic-rich, oil-prone shales of the upper Mio- Introduction------------------------------------------------------------------------------ 1 cene Monterey Formation occur in the Tejon depocenter in Methods----------------------------------------------------------------------------------2 the southern part of the basin with somewhat less favorable Discussion--------------------------------------------------------------------------------3 occurrence in the Southern Buttonwillow depocenter to the Upper Miocene Antelope shale---------------------------------------------------3 north. Shales of the upper Miocene Monterey Formation Eocene Tumey formation-----------------------------------------------------------4 Eocene Kreyenhagen Formation--------------------------------------------------4 generated most of the petroleum in the San Joaquin Basin. Cretaceous-Paleocene Moreno Formation--------------------------------------5 Thick, organic-rich, oil-prone Kreyenhagen Formation source Conclusions----------------------------------------------------------------------------- -5 rock occurs in the Buttonwillow
    [Show full text]
  • Lost Hills Oil Field (Kem County) Aquifer Exemption Record of Decision
    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION IX 75 Hawthorne Street San Francisco, CA 94105-3901 May 20, 2019 Kenneth A. Harris Jr. State Oil and Gas Supervisor Division of Oil, Gas, and Geothermal Resources California Department of Conservation 801 K Street, MS 18-05 Sacramento, CA 95814-3530 Re: Approval of Aquifer Exemption for the Lost Hills Oil Field, Kem County, California Dear Mr. Harris: Based on a thorough review of the supporting documents submitted by the California Department of Conservation, Division of Oil, Gas, and Geothermal Resources (DOGGR) and the State Water Resources Control Board (SWRCB), the U.S. Environmental Protection Agency (EPA) hereby approves the aquifer exemption request for portions of the Tulare Formation in the Lost Hills Oil Field in Kern County, California. In accordance with applicable regulations at 40 C.F.R. Parts 144, 145, and 146, we find that this aquifer exemption request is a non-substantial program revision, and the requested formations meet the following federal exemption criteria: • The portions of the formation proposed for exemption in the field do not currently serve as sources of drinking water; and • The portions of the formation proposed for exemption in the field cannot now and will not in the future serve as a source of drinking water because they are commercially hydrocarbon-producing. The approved aquifer exemption boundaries and depths, along with the EPA's analysis and rationale in support of the approval, are detailed in the enclosed Record of Decision. In addition, we are enclosing the application and other documents submitted by the DOGGR and SWRCB to the EPA that were considered in this approval decision.
    [Show full text]
  • CALIFORNIANS at RISK: an Analysis of Health Threats from Oil and Gas Pollution in Two Communities Case Studies in Lost Hills and Upper Ojai
    CALIFORNIANS AT RISK: An Analysis of Health Threats from Oil and Gas Pollution in Two Communities Case studies in Lost Hills and Upper Ojai January 2015 TM EARTHWORKS TM EARTHWORKS TM EARTHWORKS TM EARTHWORKS CALIFORNIANS AT RISK: An Analysis of Health Threats from Oil and Gas Pollution in Two Communities Case studies in Lost Hills and Upper Ojai January 2015 AUTHORS: Jhon Arbelaez, California Organizer, Earthworks Bruce Baizel, Energy Program Director, Earthworks Report available at: http://californiahealth.earthworksaction.org Photos by Earthworks ACKNOWLEDGEMENTS This report is funded in part by a grant from The California Wellness Foundation (TCWF). Created in 1992 as a private independent foundation, TCWF’s mission is to improve the health of the people of California by making grants for health promotion, wellness education and disease prevention. We would also like to thank the Broad Reach Fund for its generous financial support for this investigation. Earthworks would like to thank The William and Flora Hewlett Foundation for its generous support of this report. The opinions expressed in this report are those of the authors and do not necessarily reflect the views of The William and Flora Hewlett Foundation. A special thank you to Rosanna Esparza at Clean Water Action/Clean Water Fund for her assistance with health surveys and continued grassroots backing in Kern County; and Andrew Grinberg and Miriam Gordon, Clean Water Action/Clean Water Fund for review and contributions to the report. Thank you to ShaleTest and Calvin Tillman for the use of the FLIR camera, and their guidance on community air testing. Thank you to Citizens for Responsible Oil and Gas (CFROG), for their knowledge and expertise in Ventura County.
    [Show full text]
  • APPENDIX E Hazards and Hazardous Materials Information
    APPENDIX E Hazards and Hazardous Materials Information PHASE I ENVIRONMENTAL SITE ASSESSMENT 12761 Schabarum Avenue Irwindale, CA 91706 Assessor’s Identification Number (AIN): 8546-031-090 Prepared for: Teresa Wolfe Kaiser Foundation Health Plan Inc. 393 Walnut Street, 4th Floor Pasadena, CA 91188 Prepared by: Stantec Consulting Services Inc. 290 Conejo Ridge Avenue Thousand Oaks, CA 91361 Project No.: 185803384.200.0001 January 29,2015 Sign-off Sheet and Signatures of Environmental Professionals This document entitled PHASE I ENVIRONMENTAL SITE ASSESSMENT was prepared by Stantec Consulting Services Inc. (Stantec) for the account of Kaiser Foundation Health Plan, Inc. The material in it reflects Stantec’s best judgment in light of the information available to it at the time of preparation. Any use which a third party makes of this report, or any reliance on or decisions made based on it, are the responsibilities of such third parties. Stantec accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. All information, conclusions, and recommendations provided by Stantec in this document regarding the Phase I Environmental Site Assessment (ESA) have been prepared under the supervision of and reviewed by the professionals whose signatures appear below. Prepared by (signature) Kai Pavel Geologic Associate I declare that, to the best of my professional knowledge and belief, I meet the definition of Environmental Professional (EP) as defined in § 312.10 of 40 Code of Federal Regulations (CFR) 312. I have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the Property.
    [Show full text]
  • Groundwater Salinity and the Effects of Produced Water Disposal in The
    Groundwater salinity and the AUTHORS Janice M. Gillespie ~ California Water effects of produced water disposal Science Center, US Geological Survey (USGS), Sacramento, California; in the Lost Hills–Belridge oil [email protected] Jan Gillespie received her B.S. degree in fields, Kern County, California geology from Bemidji State University, Minnesota, her M.S. from South Dakota School Janice M. Gillespie, Tracy A. Davis, Michael J. Stephens, of Mines and Technology, and her Ph.D. from Lyndsay B. Ball, and Matthew K. Landon the University of Wyoming. Formerly a petroleum and hydrogeology professor in the Department of Geosciences at California State ABSTRACT University, Bakersfield, and a petroleum Increased oil and gas production in many areas has led to concerns over geologist in the San Joaquin Valley of California, she is now a research scientist for the USGS’s the effects these activities may be having on nearby groundwater regional aquifer monitoring project for quality. In this study, we determine the lateral and vertical extent California SB4 (the Well Stimulation Bill) of groundwater with less than 10,000 mg/L total dissolved solids delineating protected aquifers near oil – fi near the Lost Hills Belridge oil elds in northwestern Kern County, producing areas. California, and document evidence of impacts by produced water disposal within the Tulare aquifer and overlying alluvium, the primary Tracy A. Davis ~ California Water Science protected aquifers in the area. Center, USGS, San Diego, California; The depth at which groundwater salinity surpasses 10,000 mg/L [email protected] ranges from 150 m (500 ft) in the northwestern part of the study area to Tracy Davis received her B.S.
    [Show full text]
  • See Full Resume
    JAMES THOMPSON, SENIOR PROJECT PROFESSIONAL Education B.S. Geology, University of Kansas, 2008 Cume Laude M.S. Geology, University of Nevada Las Vegas (Course Work Completed, degree pending Thesis Completion) Professional Affiliations Pacific Section American Association of Professional Geologists San Joaquin Geological Society Professional Experience As a Senior Project Professional at SCS Engineers, Mr. Thompson provides geologic consulting, mapping, and technical writing for both environmental documents and petroleum industry compliance and permitting. Mr. Thompson has over five years of geologic experience working in the oil and gas industry as well as three years in environmental compliance which has afforded him a wide array of geologic mapping experience and knowledge of the software used to display and analyze geologic features and processes. A majority of projects worked on over the last three years at SCS, Mr. Thompson has performed geologic and hydrogeological analysis in order to prepare reports concerning the protection of shallow ground water aquifers throughout Santa Barbara, San Luis Obispo and Kern County. Mr. Thompson has also been a key contributor in preparing permit application packages that include projects such as oil and gas production plans, pipeline replacement plans and general land use permitting. This experience has helped Mr. Thompson maintain great working relationships with the state regulatory agencies. Mr. Thompson previously worked as a production geologist for Aera Energy, LLC for three years and following
    [Show full text]
  • Bureau of Land Management, Bakersfield Field Office
    UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF LAND MANAGEMENT BAKERSFIELD FIELD OFFICE ENVIRONMENTAL ASSESSMENT December 2020, Oil and Gas Lease Sale Environmental Assessment DOI-BLM-CA-C060-2020-0120 Table of Contents ACRONYMS AND ABBREVIATIONS .................................................................................................... V CHAPTER 1. INTRODUCTION ................................................................................................................. 1 Background ............................................................................................................................................... 1 Purpose and Need ..................................................................................................................................... 1 Conformance with BLM Land Use Plans ................................................................................................. 2 Relationship to Statutes, Regulations and Other Plans ............................................................................. 5 National Environmental Policy Act ...................................................................................................... 5 Oil and Gas Laws and Regulations ....................................................................................................... 5 Federal Land Policy and Management Act ........................................................................................... 6 Clean Air Act .......................................................................................................................................
    [Show full text]
  • Innovative Crude Oil Production Method Application: Chevron And
    California Low Carbon Fuel Standard §95489(c): Application for LCFS Credits for Producing and Transporting Crudes Using Innovative Methods Cahn Solar Plant Site Location: Chevron’s Lost Hills Oil Field SE SE SEC 4 27 21 Lost Hills, CA 93249 March 2020 Public Review Draft Executive Summary Chevron U.S.A. Inc. has contracted with SunPower Corporation to design and build a 29MWAC solar photovoltaic plant on approximately 220 acres of Chevron’s land adjacent to Chevron’s Lost Hills oil field in Kern County, California. Construction is near completion with an expected commercial operation date in March 2020. The plant design is also planned to incorporate lithium ion batteries with a 20 megawatt- hour (MWh) capacity that will be DC-coupled with the solar inverters. The addition of the battery storage component is currently undergoing a System Impact Study by PG&E and is expected to be constructed and online during the fourth quarter of 2020. Chevron will purchase all the output of the Solar Plant under a Power Purchase Agreement. The purchased electricity will partially displace the energy currently consumed from Pacific Gas & Electric with renewable solar energy generated on-site to be used by the oilfield operations. Solar energy generated in excess of Chevron’s real-time demand will be exported to Pacific Gas & Electric according to California’s Net Energy Metering 2.0 program. The battery modules will store energy generated by the solar arrays during peak solar output, reducing the excess power exported to the grid, and will dispatch it later when solar output is lower for consumption by the oil field.
    [Show full text]
  • Geologic Sequestration and Injection of Carbon Dioxide: Subparts RR
    GENERAL TECHNICAL SUPPORT DOCUMENT FOR INJECTION AND GEOLOGIC SEQUESTRATION OF CARBON DIOXIDE: SUBPARTS RR AND UU GREENHOUSE GAS REPORTING PROGRAM Office of Air and Radiation U.S. Environmental Protection Agency November 2010 Disclaimer The Environmental Protection Agency (EPA) regulations cited in this technical support document (TSD) contain legally-binding requirements. In several chapters this TSD offers illustrative examples for complying with the minimum requirements indicated by the regulations. This is done to provide information that may be helpful for reporters’ implementation efforts. Such recommendations are prefaced by the words “may” or “should” and are to be considered advisory. They are not required elements of the regulations cited in this TSD. Therefore, this document does not substitute for the regulations cited in this TSD, nor is it a regulation itself, so it does not impose legally- binding requirements on EPA or the regulated community. It may not apply to a particular situation based upon the circumstances. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. While EPA has made every effort to ensure the accuracy of the discussion in this document, the obligations of the regulated community are determined by statutes, regulations or other legally binding requirements. In the event of a conflict between the discussion in this document and any statute or regulation, this document would not be controlling. Note that this document only addresses issues covered by 49 CFR part 98, subpart RR and subpart UU, which are being promulgated under EPA’s authorities under the Clean Air Act (CAA). Other statutory and regulatory requirements, such as compliance with Safe Drinking Water Act (SDWA) and Underground Injection Control (UIC) Program requirements1, are not within the scope of this TSD.
    [Show full text]
  • United States Department of the Interior Geological
    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Summary of Geology and Petroleum Plays Used to Assess Undiscovered Recoverable Petroleum Resources, San Joaquin Basin Province, California i o By Larry A. Beyer 1 and J, Alan Bartow Open-File Report 87-450Z This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. .S. Geological Survey, 345 Middlefield Rd., MS 999, Menlo Park, CA 94025 2 U.S. Geological Survey, 345 Middlefield Rd., MS 975, Menlo Park, CA 94025 1988 TABLE OF CONTENTS I. INTRODUCTION 1 II. GEOLOGICAL SUMMARY 1 A. Previous Work 1 B. Plate and Regional Tectonic History 3 1. Late Mesozoic 3 2. Paleogene 3 3. Neogene and Quaternary 4 C. Structural Setting and Stratigraphy 7 1. Northern Part of Sierran Block 7 2. Southern Part of Sierran Block 7 3. Northern Diablo Homocline 9 4. West-Side Fold Belt 10 5. Maricopa-Tejon Subbasin and South Margin Deformed Belt 11 D. Basin Evolution 12 E. Heat Flow, Subsurface Temperatures and Pore-Fluid Pressures 15 F. Petroleum Source Rocks 16 G. Diagenesis of Petroleum Reservoir Rocks 21 H. Porosity of Petroleum Reservoir Rocks 24 III. PETROLEUM PLAYS 26 A. PLAY I: Uppermost Miocene to Pleistocene Marine and Nonmarine Sandstones, South-Central and Southwest Area 26 B. PLAY II: Upper Miocene West- and Southwest-Sourced Channel and Turbidite Sands, Southwest Area 27 C. PLAY III: Middle and Upper Miocene Fractured Shales and Diatomaceous Rocks 27 D.
    [Show full text]
  • OFR 2019–1114: Multiple-Well Monitoring Site Adjacent to the Lost
    Prepared in cooperation with California State Water Resources Control Board Multiple-Well Monitoring Site Adjacent to the Lost Hills Oil Field, Kern County, California The U.S. Geological Survey (USGS), in cooperation with the California State Study Area Water Resources Control Board, is evaluating several questions about oil and gas The LHSP is in the Kern development and groundwater resources in California, including (1) the location of County subbasin of the San Joaquin groundwater resources; (2) the proximity of oil and gas operations and groundwater and Valley groundwater basin situated the geologic materials between them; (3) evidence for or against fluids from oil and gas on the southern end of the Tulare sources in groundwater; and (4) the pathways or processes responsible when fluids from Lake Hydrologic Region (California oil and gas sources are present in groundwater (U.S. Geological Survey, 2019). As part Department of Water Resources, 2016; of this evaluation, the USGS installed a multiple-well monitoring site in the southern fig. 1). The LHSP is approximately San Joaquin Valley near Lost Hills, California, adjacent to the Lost Hills oil field 1,400 feet (ft) east and downgradient (fig. 1). Data collected at the Lost Hills multiple-well monitoring site (LHSP) provide from the Lost Hills oil and gas field information about the geology, hydrology, geophysics, and geochemistry of the aquifer administrative boundary. system, thus enhancing understanding of relations between adjacent groundwater and Primary water-bearing units that the Lost Hills oil field in an area where there is little groundwater data.This report comprise the major aquifers on the presents construction information for the LHSP and initial geohydrologic data collected west side of the Tulare Lake region from the site.
    [Show full text]
  • USGS Professional Paper 1713, Chapter 13
    1 Petroleum Systems and Geologic Assessment of Oil and Gas in the San Joaquin Basin Province, California Chapter 13 Miocene Total Petroleum System—Southeast Stable Shelf Assessment Unit of the San Joaquin Basin Province By Donald L. Gautier and Allegra Hosford Scheirer to present from Monterey Forma- Contents tion. Summary----------------------------------------------------------------------------------1 Existing Fields Ant Hill, Dyer Creek, Edison, Description------------------------------------------------------------------------------- 1 Edison Northeast, Fruitvale, Kern Source Rocks---------------------------------------------------------------------------- 2 Bluff, Kern Front, Kern River, Maturation--------------------------------------------------------------------------------2 Mount Poso, Mountain View, Poso Migration--------------------------------------------------------------------------------- 2 Creek, Rosedale Ranch, Round Reservoir Rocks------------------------------------------------------------------------- 2 Traps and Seals--------------------------------------------------------------------------3 Mountain, Union Avenue. Exploration Status and Resource Potential------------------------------------------ 3 Exploration Status Heavily explored (2.3 wells per References Cited------------------------------------------------------------------------4 square mile and 67 percent of all Figures------------------------------------------------------------------------------------ 8 sections have at least one explor- Table-------------------------------------------------------------------------------------19
    [Show full text]