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A FORTRAN program for interpretation of relative permeability from unsteady-state displacements with capillary pressure included

Computers and Geosciences

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DOI: 10.1016/0098-3004(91)90001-T

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Abstract

This paper presents a FORTRAN program for the determination of two-phase relative permeabilities from unsteady-state displacement data with capillary pressure terms included. The interpretative model employed in this program combines the simultaneous solution of a variant of the fractional flow equation which includes a capillary pressure term and an integro-differential equation derived from Darcy's law without assuming the simplified Buckley-Leverett flow. The incorporation of capillary pressure in the governing equations dispenses with the high flowrate experimental requirements normally employed to overcome capillarity effects. An illustrative example is presented herein which implements this program for the determination of oil/water relative permeabilities from a sandstone core sample. Results obtained compares favorably with results previously given in the literature. ?? 1991.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
A FORTRAN program for interpretation of relative permeability from unsteady-state displacements with capillary pressure included
Series title:
Computers and Geosciences
DOI:
10.1016/0098-3004(91)90001-T
Volume
17
Issue:
10
Year Published:
1991
Language:
English
Publisher:
Elsevier
Publisher location:
Amsterdam, Netherlands
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Computers and Geosciences
First page:
1351
Last page:
1357
Number of Pages:
7