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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 Previous HitEffectiveNext Hit Stress--a Review: ABSTRACT

Author(s): W. R. Purcell

Article Type: Meeting abstract


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

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Copyright 1997 American Association of Petroleum Geologists