Micromodel studies of three‐fluid porous media systems: Pore‐scale processes relating to capillary pressure‐saturation relationships

W. E. Soll, Michael Anthony Celia, J. L. Wilson

Research output: Contribution to journalArticle

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Abstract

An experimental approach to study physical processes affecting fluid behavior in three‐fluid porous media systems was designed and implemented. These experiments were designed to provide quantitative evidence of important pore‐scale displacement processes. A unique experimental approach using a two‐dimensional synthetic porous medium (micromodel) and digital image analysis (DIA) enabled both measurement of three‐fluid capillary pressure‐saturation relationships and analysis of fluid behavior at the pore level. Experiments were pressure controlled, and were designed to mimic measurements typically performed on laboratory cores. Only quasi‐static measurements were made, with a focus on capillary pressure‐saturation relations. Different orders of fluid infiltration with respect to wettability were studied. DIA made it possible to obtain quantitative information about the experiments, including fluid saturations, saturation changes between pressure steps, and movement of apparently isolated fluids through films. The results provide insights into important pore‐scale mechanisms and provide a basis for three‐fluid pore‐scale computations.

Original languageEnglish (US)
Pages (from-to)2963-2974
Number of pages12
JournalWater Resources Research
Volume29
Issue number9
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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