Method and composition for oil recovery by gas flooding

Details Method and composition for oil recovery by gas flooding Method and composition for oil recovery by gas flooding

1985-11-15

1987-06-30

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166272, E21B 4322

Patent

active

046763163

ABSTRACT:
A method and composition for improved enhanced oil recovery of oil from a subterranean hydrocarbon-bearing reservoir by effecting simultaneous mobility and profile control in gas flooding which includes pre-injecting into the reservoir an aqueous solution of a water-soluble polymer in combination with a stable surfactant, followed by injecting a gas into the reservoir under pressure sufficient to effect oil production while recovering oil at a producing well of said reservoir.

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