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Play Analysis and Digital Portfolio of Major Oil Reservoirs in the Permian Basin

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Play Analysis and Digital Portfolio of Major Oil Reservoirs in the Permian Basin Play Analysis and Digital Portfolio of Major Oil Reservoirs in the Permian Basin: Application and Transfer of Advanced Geological and Engineering Technologies for Incremental Production Opportunities Final Report Reporting Period Start Date: January 14, 2002 Reporting Period End Date: May 13, 2004 Shirley P. Dutton, Eugene M. Kim, Ronald F. Broadhead, Caroline L. Breton, William D. Raatz, Stephen C. Ruppel, and Charles Kerans May 2004 Work Performed under DE-FC26-02NT15131 Prepared by Bureau of Economic Geology John A. and Katherine G. Jackson School of Geosciences The University of Texas at Austin University Station, P.O. Box X Austin, TX 78713-8924 and New Mexico Bureau of Geology and Mineral Resources New Mexico Institute of Mining and Technology Socorro, NM 87801-4681 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability for responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. iii ABSTRACT The Permian Basin of west Texas and southeast New Mexico has produced >30 Bbbl (4.77 × 109 m3) of oil through 2000, most of it from 1,339 reservoirs having individual cumulative production >1 MMbbl (1.59 × 105 m3). These significant-sized reservoirs are the focus of this report. Thirty-two Permian Basin oil plays were defined, and each of the 1,339 significant-sized reservoirs was assigned to a play. The reservoirs were mapped and compiled in a Geographic Information System (GIS) by play. Associated reservoir information within linked data tables includes Railroad Commission of Texas reservoir number and district (Texas only), official field and reservoir name, year reservoir was discovered, depth to top of the reservoir, production in 2000, and cumulative production through 2000. Some tables also list subplays. Play boundaries were drawn for each play; the boundaries include areas where fields in that play occur but are <1 MMbbl (1.59 × 105 m3) of cumulative production. This report contains a summary description of each play, including key reservoir characteristics and successful reservoir- management practices that have been used in the play. The CD accompanying the report contains a pdf version of the report, the GIS project, pdf maps of all plays, and digital data files. Oil production from the reservoirs in the Permian Basin having cumulative production >1 MMbbl (1.59 × 105 m3) was 301.4 MMbbl (4.79 × 107 m3) in 2000. Cumulative Permian Basin production through 2000 from these significant-sized reservoirs was 28.9 Bbbl (4.59 × 109 m3). The top four plays in cumulative production are the Northwest Shelf San Andres Platform Carbonate play (3.97 Bbbl [6.31 × 108 m3]), the Leonard Restricted Platform Carbonate play (3.30 Bbbl [5.25 × 108 m3), the v Pennsylvanian and Lower Permian Horseshoe Atoll Carbonate play (2.70 Bbbl [4.29 × 108 m3]), and the San Andres Platform Carbonate play (2.15 Bbbl [3.42 × 108 m3]). vi CONTENTS ABSTRACT ........................................................................................................................v EXECUTIVE SUMMARY ............................................................................................ xxi INTRODUCTION ..............................................................................................................1 EXPERIMENTAL METHODS ..........................................................................................5 RESULTS AND DISCUSSION .........................................................................................6 Definition of the Permian Basin ....................................................................................6 Identification of Significant-Sized Reservoirs...............................................................9 Texas........................................................................................................................9 New Mexico...........................................................................................................11 Total Permian Basin Production ............................................................................12 Play Definitions ...........................................................................................................12 Play Designations of Reservoirs ..................................................................................13 Mapping Reservoirs in GIS .........................................................................................18 Texas......................................................................................................................18 New Mexico...........................................................................................................20 Play Boundaries and Play Maps ..................................................................................20 Contents of the CD.......................................................................................................21 References....................................................................................................................22 PLAY SUMMARIES ........................................................................................................27 Ordovician Plays..........................................................................................................34 Ellenburger Selectively Dolomitized Ramp Carbonate.........................................36 Ellenburger Karst-Modified Restricted Ramp Carbonate......................................46 Simpson Cratonic Sandstone .................................................................................56 Silurian Plays ...............................................................................................................63 Fusselman Shallow Platform Carbonate................................................................65 Wristen Buildups and Platform Carbonate ............................................................75 vii Devonian Plays ............................................................................................................84 Devonian Thirtyone Deepwater Chert...................................................................86 Devonian Thirtyone Ramp Carbonate ...................................................................95 Mississippian Play .....................................................................................................101 Mississippian Platform Carbonate .......................................................................101 Pennsylvanian Plays...................................................................................................106 Northwest Shelf Strawn Patch Reef.....................................................................109 Northwest Shelf Upper Pennsylvanian Carbonate...............................................113 Pennsylvanian Platform Carbonate......................................................................121 Pennsylvanian and Lower Permian Horseshoe Atoll Carbonate .........................132 Upper Pennsylvanian and Lower Permian Slope and Basinal Sandstone ...........144 Lower Permian Plays .................................................................................................151 Wolfcamp Platform Carbonate ............................................................................152 Wolfcamp/Leonard Slope and Basinal Carbonate...............................................162 Abo Platform Carbonate ......................................................................................172 Leonard Restricted Platform Carbonate...............................................................180 Bone Spring Basinal Sandstone and Carbonate...................................................200 Spraberry/Dean Submarine-Fan Sandstone .........................................................205 Upper Permian (Guadalupian) Plays .........................................................................213 Northwest Shelf San Andres Platform Carbonate ...............................................216 Eastern Shelf San Andres Platform Carbonate ....................................................226 San Andres Karst-Modified Platform Carbonate.................................................232 San Andres Platform Carbonate...........................................................................241 Upper San Andres and Grayburg Platform Mixed—Central Basin Platform Trend..............................................................................................256 Upper San Andres and Grayburg Platform Mixed—Artesia Vacuum Trend......260 San Andres/Grayburg Lowstand Carbonate ........................................................270 Grayburg Platform Mixed Clastic/Carbonate ......................................................276 Grayburg Platform Carbonate..............................................................................282
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