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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: Generation of Abnormal Pressures Through Organic Matter Transformations: ABSTRACT

Author(s): James A. Momper

Article Type: Meeting abstract


Adequately heated hydrogen-rich organic matter will generate fluids in sufficient quantity to considerably exceed the volume-reduction of remaining kerogen. Resulting volume increases cause high fluid pressures in laminae of sealed, confined argillaceous rocks where organic matter is concentrated, forming or re-opening partings and fractures for oil migration and expulsion.

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Copyright 1997 American Association of Petroleum Geologists