Urea as a cosurfactant in enhanced oil recovery processes

Details Urea as a cosurfactant in enhanced oil recovery processes Urea as a cosurfactant in enhanced oil recovery processes

1983-01-27

1985-01-15

Guynn, Herbert B.

Wells

Processes

Distinct, separate injection and producing wells

166274, 252 855D, E21B 4322

Patent

active

044933703

ABSTRACT:
A surfactant system useful for oil recovery comprising salt water, a surfactant, such as a petroleum sulfonate, and urea. Optionally, a C.sub.3 to C.sub.8 alcohol is additionally present as a cosurfactant.

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