Abnormal pressures as hydrodynamic phenomena
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Abstract
So-called abnormal pressures, subsurface fluid pressures significantly higher or lower than hydrostatic, have excited speculation about their origin since subsurface exploration first encountered them. Two distinct conceptual models for abnormal pressures have gained currency among earth scientists. The static model sees abnormal pressures generally as relict features preserved by a virtual absence of fluid flow over geologic time. The hydrodynamic model instead envisions abnormal pressures as phenomena in which flow usually plays an important role. This paper develops the theoretical framework for abnormal pressures as hydrodynamic phenomena, shows that it explains the manifold occurrences of abnormal pressures, and examines the implications of this approach.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Abnormal pressures as hydrodynamic phenomena |
| Series title | American Journal of Science |
| DOI | 10.2475/ajs.295.6.742 |
| Volume | 295 |
| Issue | 6 |
| Year Published | 1995 |
| Language | English |
| Publisher | American Journal of Science |
| Description | 45 p. |
| First page | 742 |
| Last page | 786 |
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