Physics – Condensed Matter – Materials Science
Scientific paper
1999-02-17
Physics
Condensed Matter
Materials Science
13 pages
Scientific paper
We discuss the problem of trapping and mobilization of nonwetting fluids during immiscible two phase displacement processes in porous media. Capillary desaturation curves give residual saturations as a function of capillary number. Interpreting capillary numbers as the ratio of viscous to capillary forces the breakpoint in experimental curves contradicts the theoretically predicted force balance. We show that replotting the data against a novel macroscopic capillary number resolves the problem for discontinuous mode displacement.
Hilfer Rudolf
Lucian A.
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