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INTEGRATED SEISMIC RESERVOIR CHARACTERIZATION AND MODELING: A GULF OF MEXICO 3D CASE HISTORY

By
REBECCA B. LATIMER
REBECCA B. LATIMER
Jason Geosystems 14811 St. Mary’s Lane, Suite 225 Houston, Texas 77079
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PAUL VAN RIEL
PAUL VAN RIEL
Jason Geosystems 14811 St. Mary’s Lane, Suite 225 Houston, Texas 77079
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Published:
December 01, 1996

ABSTRACT

A quantitative, detailed description of reservoir architecture and properties, which honors all available well log, seismic, and geologic information, can strongly improve the economics of reservoir development and enhance production. Spatial distribution of reservoir properties can be determined by stepping through a workflow which starts where standard workstation seismic and geologic interpretation ends. In order to obtain the most accurate and detailed results, one must design a multidisciplinary workflow that quantitatively integrates well log, petrophysical and seismic information. The main steps are:

  • Seismic well calibration;

  • 3D seismic lithology inversion;

  • 3D geologic modeling, utilizing interpolated well control;

  • Detailed interpretation of reservoir stratigraphic units, using a seismic lithology inversion cube merged with the geologic model;

  • Estimation of reservoir parameters such as average porosity and net pay from the lithology cube.

Following this workflow through a Gulf of Mexico 3D case study shows how the reservoir’s stratigraphic and lithologic properties are more accurately determined than would be possible with standard seismic interpretation and seismic attribute analysis. The seismic lithology analysis allows for delineation of depositional systems tracts, which can be superimposed upon the seismic interpretation. The method also identifies lithologic changes away from well control. These results are directly related to reservoir properties and are used to support the optimization of the development drilling program.

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Contents

GCSSEPM

Stratigraphic Analysis Utilizing Advanced Geophysical, Wireline and Borehole Technology for Petroleum Exploration and Production

Jory A. Pacht
Jory A. Pacht
Seis-Strat Servies, Inc. Sugar Land, Texas
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Robert E. Sheriff
Robert E. Sheriff
University of Houston Houston, Texas
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Bob F. Perkins
Bob F. Perkins
GCSSEPM Foundation West Hartland, Connecticut
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SEPM Society for Sedimentary Geology
Volume
17
ISBN electronic:
978-0-9836097-6-6
Publication date:
December 01, 1996

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