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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: Concepts of Effective Stress--a Review: ABSTRACT

Author(s): W. R. Purcell

Article Type: Meeting abstract


Many modifications have been made in expressions for effective stress since the concept was first introduced by Previous HitsoilTop scientists almost 40 years ago. There is no single definition of effective stress applicable to all stress-dependent processes. Problems are encountered in estimating earth stresses. There is a need to develop effective stress laws for porous materials containing two fluids at different pressures.

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Copyright 1997 American Association of Petroleum Geologists