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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: An Integration of Basin Modeling with Fault
Seal
Prediction through Geologic Time
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1Chevron Energy Technology Company
2Rock Deformation Research, USA Inc
3Rock Deformation Research Ltd.
Pressure prediction in structurally and stratigraphically complex
areas using basin modeling approaches requires a good
understanding of structural and diagenetic evolution of the
basin. Typical models in such areas are based on a series of
restorations that provide basic geometric description of the
evolving system. They do not address the evolution of the
mechanical properties of rocks through geologic time. Failure to
appreciate this often leads to the wrong fault and host rock
properties being utilized in the models, significant discrepancies
with calibration data, and questionable charge and pressure
predictions. In this paper, we discuss how such
discrepancies can be utilized to iteratively
improve the representation of fault rock properties.
The proposed approach is an integration of
basin modeling with diagenetic and mechanical
analysis of fault and matrix rock properties.
Examples from the Gulf of Mexico and
Southeast Asia demonstrate how the approach
helped to reduce fault- and seal
-related uncertainty,
which resulted in better hydrocarbon
charge models and better pressure predictions.
ACKNOWLEDGMENTS:We thank Chevron Corporation for permission to present this work.
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