Foam flow through an oil-wet porous medium. A laboratory study

J. M. Sanchez, R. D. Hazlett

Research output: Contribution to conferencePaperpeer-review

Abstract

A laboratory study of the steady generation and flow of gas and surfactant solution through an oil-wet porous medium indicates that foam is formed and is effective in reducing gas permeability. A comparison of the flow characteristics of foam in oil-wet and water-wet media has shown that gas permeability reduction in both systems, at similar surfactant concentrations, is approximately equal in magnitude. The ability to form stable foam in-situ in an oil-wet porous medium appears to result from the alteration of the initially hydrophobic surface to hydrophilic by two mechanisms: (1) surface tension lowering and, (2) surfactant adsorption. No alteration in either the liquid or gas relative permeability was found to occur with added surfactant when a residual mineral oil was present in the oil-wet system.

Original languageEnglish
Pages19687579-19687588
Number of pages10
Publication statusPublished - 1989
Externally publishedYes
EventProceedings: SPE Annual Technical Conference and Exhibition 1989 - San Antonio, TX, USA
Duration: Oct 8 1989Oct 11 1989

Conference

ConferenceProceedings: SPE Annual Technical Conference and Exhibition 1989
CitySan Antonio, TX, USA
Period10/8/8910/11/89

ASJC Scopus subject areas

  • General Engineering

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