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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 63 (1979)

Issue: 8. (August)

First Page: 1424

Last Page: 1424

Title: Smectite-Illite Transformation--Its Role in Generating and Maintaining Geopressure: ABSTRACT

Author(s): W. R. Foster

Article Type: Meeting abstract


The effects of the smectite-illite transformation are incorporated into compaction and fluid mechanical models for shales by connecting the extent of this reaction to their elastic rigidity and permeability coefficents. In this way the reaction partly determines both the thermo-elastic response of a shale body and the equation of motion of its fluid phase. Computer simulation of these model equations reproduces the spectra of geopressure phenomena encountered in the northern Gulf of Mexico.

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Copyright 1997 American Association of Petroleum Geologists