Page 23 - Petrophysics

depletion and repressurization, stress and critical borehole pressure in vertical
and horizontal wells, critical pore pressure, and estimation of unconfined
compressive rock strength from porosity data.
The Appendix, covering petrophysics laboratory experiments, is essentially
the same because the basic methods for the experimental study of petrophysics
have not changed very much. A recently developed general method for
calculation of relative permeability, however, was included in Experiment 12.
The procedure is applicable to both constant rate and constant pressure unsteady
state displacement.

Djebbar Tiab
Erle C. Donaldson

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