Relative permeability hysteresis in micellar flooding

This paper presents two-phase relative permeability curves for drainage and imbibition measured by the displacement method for (1) excess water-microemulsion, and (2) excess oil-microemulsion. The results show that the relative permeability curves are process dependent, even at the low interfacial t...

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Bibliographic Details
Published in:Journal of petroleum science & engineering 1992-04, Vol.7 (1), p.91-103
Main Authors: Eikje, Eli, Jakobsen, Stein R., Lohne, Arild, Skjæveland, Svein M.
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Crude oil, natural gas, oil shales producing equipements and methods
Energy
Enhanced oil recovery methods
Exact sciences and technology
Fuels
Prospecting and production of crude oil, natural gas, oil shales and tar sands
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Summary:This paper presents two-phase relative permeability curves for drainage and imbibition measured by the displacement method for (1) excess water-microemulsion, and (2) excess oil-microemulsion. The results show that the relative permeability curves are process dependent, even at the low interfacial tension of 0.1 mN/m for microemulsion-water, and 0.005 mN/m for microemulsion-oil. Three-phase displacement experiments are interpreted by Virnovskii's theory, which is an extension of the two-phase JBN-method. The measured three-phase relative permeability curves are compared with those from Stone's method I. A new hysteresis scheme is implemented in a chemical simulator and allows for saturation reversal at any point, with different curvatures for drainage and imbibition. The validity of Virnovskii's theory is demonstrated, also when the relative permeabilities exhibit hysteresis.
ISSN:0920-4105
1873-4715
DOI:10.1016/0920-4105(92)90011-O