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The AAPG/Datapages Combined Publications Database
AAPG Special Volumes
Abstract
Chapter from:
Pressures
in Hydrocarbon Environments
Edited by Formation
Pressures: Origin, Prediction, Hydrocarbon Field Development, and Ecological Problems
Chapter 6
Formation Pressures: Origin, Prediction, Hydrocarbon Field Development, and Ecological
Problems
V.I. Slavin1 E.M. Smirnova
VNIGRI, St. Petersburg, Russia
1Present Affiliation: Consulting Petroleum Geologist, Berlin, Germany
Abstract
formation pressures (AHFP) require a good understanding of the origin of AHFP and the
development of predictive methods. We classify the causes of AHFP into two genetic groups:
(1) a syn-sedimentary group characterized by undercompaction of rocks and (2) a
post-sedimentary group characterized by secondary decompaction of rocks. The choice of
methods for the prediction and evaluation of AHFP should be based on the origin of
abnormal pressure and the lithology of the rocks. The reservoir properties of rocks in
AHFP zones suggest that large, in-place resources of hydrocarbons may be present in
complex low-permeability clastic and carbonate reservoirs despite low rates of production.
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