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Interfacial effects in immiscible liquid-liquid displacement in porous media

Journal Article · · Soc. Pet. Eng. J.; (United States)
DOI:https://doi.org/10.2118/1442-PA· OSTI ID:6524578
A study was made of the effects of wettability and interfacial tension on the immiscible displacement of a liquid by another liquid for porous media. The influence of viscosity ratio was also investigated. Porous media used were polytetrafluorethylene (TFE) cores prepared by compressing TFE powder under different pressures. It is shown that displacement of a wetting by a nonwetting liquid is always less efficient than the displacement of a non- wetting by a wetting fluid, all other things being equal. In the former case, the recovery efficiency can be increased substantially by either reducing the interfacial tension or increasing the viscosity of the displacing fluid. A qualitative discussion is given on the implications of this work to the recovery of crude oil by waterflooding. (23 refs.)
Research Organization:
Sinclair Oil and Gas Co
OSTI ID:
6524578
Journal Information:
Soc. Pet. Eng. J.; (United States), Journal Name: Soc. Pet. Eng. J.; (United States) Vol. 6:3; ISSN SPTJA
Country of Publication:
United States
Language:
English