Enhanced oil recovery process

Details Enhanced oil recovery process Enhanced oil recovery process

1987-06-03

1988-09-06

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166294, E21B 33138, E21B 4322

Patent

active

047685921

ABSTRACT:
A process for recovery of hydrocarbons from a porous reservoir comprising injecting substantially simultaneously into the reservoir a gas and an aqueous liquid including at least one surface active agent present in an amount up to about 50 percent of the critical micellar concentration such that menisci are formed in certain ones of the pore spaces of the reservoir to an extent that oil droplets lodged in others of the pore spaces are swept by the injected mixture toward a production well.

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Pirson, Sylvain J., Oil Reservoir Engineering, second edition, McGraw-Hill Book Company, Inc., 1958, pp. 68-75.

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