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Reservoir Characterization of A Permian Giant: Yates Field, West Texas

By
Scott W. Tinker
Scott W. Tinker
Marathon Oil Company, Petroleum Technology Center, Littleton, Colorado; and Marathon Oil Company, Mid Continent Region, Midland, Texas
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Denise H. Mruk
Denise H. Mruk
Marathon Oil Company, Petroleum Technology Center, Littleton, Colorado; and Marathon Oil Company, Mid Continent Region, Midland, Texas
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Published:
January 01, 1995

ABSTRACT

The Yates Field reservoir characterization project provided the geologic framework, data, and tools that support the ongoing reservoir management of Yates Field. Geologic and engineering data, including 1800 wells with digital log data; 23,000 ft of quantified core analysis and description; and six decades of production data were integrated, analyzed, and output in a format that could be used for field evaluation, management, and simulation.

The Yates Field reservoir characterization products include quantified, standardized, digital core descriptions for 118 cores in the field; a digital tops database for every well in the field; a digital cave location database; 2-D digital cross sections through every well in the field; 2-D structure and isochore maps for major and internal marker horizons, net and gross reservoir maps, net and gross shale maps, secondary calcite distribution maps, cave distribution maps, and fracture distribution maps; and a 6.8 million cell, 3-D geologic model of the complete reservoir that includes log, core, and production data.

The reservoir characterization project resulted in a quantified description of the heterogeneous matrix and fracture network in Yates Field. The efficient, ongoing management of this classic dual-porosity system has stabilized production from this 68-year-old, 4.2 billion barrel field.

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Contents

SEPM Short Course Notes

Hydrocarbon Reservoir Characterization: Geologic Framework and Flow Unit Modeling

Emily L. Stoudt
Emily L. Stoudt
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Paul M. Harris
Paul M. Harris
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SEPM Society for Sedimentary Geology
Volume
34
ISBN electronic:
9781565761032
Publication date:
January 01, 1995

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