Enhanced oil recovery method employing an aqueous polymer

Details Enhanced oil recovery method employing an aqueous polymer Enhanced oil recovery method employing an aqueous polymer

1988-04-08

1989-06-06

Schofer, Joseph L.

Wells

Processes

Distinct, separate injection and producing wells

166274, 166275, 252 8554, E21B 4322

Patent

active

048362824

ABSTRACT:
A stable latex composition possessing a viscosity of less than about 50 cp. comprised of an ethylacrylate/methylacrylic acid/acrylic acid polymer and co-surfactant system comprising a nonylphenol polyethylene oxide ether sulfate and a propoxylated, ethoxylated propylene glycol nonionic surfactant block polymer useful for increasing the viscosity of water that is injected into subterranean petroleum bearing formations for the enchanced recovery of the petroleum.

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