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10 - Geopressure Prediction Using Basin History Modeling
Nader C. Dutta, Ran Bachrach, Tapan Mukerji, Stanford University, California
Book:

Quantitative Analysis of Geopressure for Geoscientists and Engineers

Published online:

10 February 2021

Print publication:

11 March 2021, pp 368-391
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Summary

This chapter describes examples of basin modeling in 1D and 2D and shows the power of basin models to predict pore pressure. The fundamental conservation laws and partial differential equations used in basin modeling are presented. Mathematical derivations for 1D shale-on-shale and sand-on-shale compaction and pore pressure models are given in detail. While seismic models for pore pressure prediction predict pore pressure given present-day geology, basin modeling provides an alternate technique that describes the pore pressure distribution using transient models that depend on fluid and heat flow during geologic times along with other phenomena, such as changes in facies and geologic structures in paleotimes. So this approach not only tells us what the pore pressure is today but allows us to investigate the effect of uncertainties in geology in the past and their imprint on the present-day pressure distribution.