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Book Chapter

Delineation of a Pressure Fault Seal From Shale Resistivities

By
James C. Niemann
James C. Niemann
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;
Mark R. Krolow
Mark R. Krolow
Chevron USA Production Co. New Orleans, Louisiana, U.S.A.
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Published:
January 01, 1997

Abstract

Pressure differentials between fault blocks are definitive evidence of a fluid seal across faults. A method is proposed for using log-derived and calculated pressure gradient values to correlate and map pressures on cross sections to delineate pressure differentials across fault zones. These values were calculated and mapped along a known hydrocarbon sealing fault inferred to be a pressure seal in a field from the Gulf of Mexico. The results indicate that this method can generate a detailed picture of the fluid and pressure history to aid in the docu-mentation and prediction of sealing or leaking relationships along fault zones.

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Contents

AAPG Memoir

Seals, Traps, and the Petroleum System

R.C. Surdam
R.C. Surdam
Institute for Energy Research University of Wyoming Laramie, Wyoming
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American Association of Petroleum Geologists
Volume
67
ISBN electronic:
9781629810775
Publication date:
January 01, 1997

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