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Book Chapter

Reservoir Characterization of the Fullerton Clear Fork Field, Andrews County, Texas

By
F. Jerry Lucia
F. Jerry Lucia
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Stephen C. Ruppel
Stephen C. Ruppel
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Rebecca H. Jones
Rebecca H. Jones
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Jeffrey A. Kane
Jeffrey A. Kane
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Fred Wang
Fred Wang
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Hongliu Zeng
Hongliu Zeng
Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin Austin, Texas 78713-8924
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Published:
December 01, 2006

Abstract

This paper is a summary of the six-step methodology used to build a full-field reservoir model of the Fullerton Clear Fork Field in Andrews County, Texas. (1) Three Leonardian sequences and three high-frequency sequences are defined on the basis of vertical facies successions observed in core material and interpreted on cross sections. Studies of analog outcrops in the Apache Mountains, West Texas, are integrated into the interpretation to verify the stratigraphic architecture. (2) The sequences are subdivided into high-frequency cycles and flow layers suitable for distributing petrophysical properties and correlated to more than 1,000 wells. (3) Vertical profiles of porosity, permeability, and initial water saturation (Swi) are calculated from wireline logs using the rock-fabric approach. Because only gamma-ray and porosity logs were available, the stratigraphic framework was used to map the spatial distribution of rock fabrics. (4) The rock fabrics were converted to petrophysical class and, together with porosity from wireline logs, used in class-specific transforms to calculate permeability and Swi. (5) The full-field model was constructed by distributing the calculated petrophysical properties laterally within high-frequency cycles. The resulting patterns vary considerably from sequence to sequence. (6) A flow simulation model was then constructed in a portion of the field in a similar manner. Areas of upswept hydrocarbons were located by reconstructing field history and simulating production history.

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Contents

GCSSEPM

Reservoir Characterization: Integrating Technology and Business Practices

Roger M. Slatt
Roger M. Slatt
Houston, Texas
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Norman c. Rosen
Norman c. Rosen
Houston, Texas
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Michael Bowman
Michael Bowman
Houston, Texas
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John Castagna
John Castagna
Houston, Texas
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Timothy Good
Timothy Good
Houston, Texas
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Robert Loucks
Robert Loucks
Houston, Texas
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Rebecca Latimer
Rebecca Latimer
Houston, Texas
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Mark Scheihing
Mark Scheihing
Houston, Texas
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Hu Smith
Hu Smith
Houston, Texas
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SEPM Society for Sedimentary Geology
Volume
26
ISBN electronic:
978-0-9836096-4-3
Publication date:
December 01, 2006

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