Oil recovery method using a surfactant

Details Oil recovery method using a surfactant Oil recovery method using a surfactant

1975-09-26

1976-08-31

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166275, 252 855D, E21B 4322

Patent

active

039774716

ABSTRACT:
A method is disclosed for recovering oil from a subterranean oil-bearing formation wherein a liquid solution in injected into and driven through the formation and oil is recovered from the formation. The liquid solution contains an effective amount of a surface-active agent having the general formula: ##EQU1## or ##EQU2## wherein R.sub.1 is a benzene, toluene, or xylene radical having a linear or branched alkyl substituent containing from 6 to 24 carbon atoms;

REFERENCES:
patent: 3431265 (1969-03-01), Wakeman et al.
patent: 3799263 (1974-03-01), Prillieux et al.
patent: 3827497 (1974-08-01), Dycus et al.
patent: 3861466 (1975-01-01), Gale
patent: 3885626 (1975-05-01), Gale et al.
patent: 3885628 (1975-05-01), Reed et al.
patent: 3888308 (1975-06-01), Gale et al.
patent: 3890239 (1975-06-01), Dycus et al.

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