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Mechanisms of the displacement of one fluid by another in a network of capillary ducts

Published online by Cambridge University Press:  20 April 2006

R. Lenormand
Affiliation:
Institut de Mécanique des Fluides de Toulouse, 2 rue Charles Camichel, 31071 Toulouse Cedex, France
C. Zarcone
Affiliation:
Institut de Mécanique des Fluides de Toulouse, 2 rue Charles Camichel, 31071 Toulouse Cedex, France
A. Sarr
Affiliation:
Institut de Mécanique des Fluides de Toulouse, 2 rue Charles Camichel, 31071 Toulouse Cedex, France

Abstract

The mechanisms of displacement of one fluid by another are investigated in an etched network.

Experiments show that both fluids are simultaneously present in a duct, the wetting fluid remaining in the extreme corners of the cross-section. Calculation of displacement pressures are in good agreement with experiments for drainage, imbibition and removal of blobs. The results may be related to some flow behaviour exhibited in porous media.

Type
Research Article
Copyright
© 1983 Cambridge University Press

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