Intermediate fluid systems for long distance oil displacement

Details Intermediate fluid systems for long distance oil displacement Intermediate fluid systems for long distance oil displacement

1975-03-07

1976-02-17

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166252, 166274, 252 855D, E21B 4322

Patent

active

039385914

ABSTRACT:
Micellar systems which are neither oil-external nor water-external can be formed from petroleum sulfonates, e.g., crude oil sulfonates formulated with water and, optionally, cosurfactants, e.g., hexanol. Because such micellar systems resist uptake of both oil and water, they are suitable for long distance displacement in which injection wells are spaced at least about 300 feet from production wells.

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patent: 3827496 (1974-08-01), Schroeder
dreher et al., Journal of Petroleum Technology, 12/71, "On Determining the Continuous Phase in Microemulsions," pp. 1437, 1438.

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