Sulfonate dimer surfactant additives for steam foam drives...

Details Sulfonate dimer surfactant additives for steam foam drives... Sulfonate dimer surfactant additives for steam foam drives...

E - Fixed Constructions

21

B

31/14

E21B 43/22 (2006.01) C09K 8/592 (2006.01) E21B 43/24 (2006.01)

Patent

CA 1218227

ABSTRACT OF THE DISCLOSURE An improved steam injection process for recovering hydrocarbons from a subterranean formation, The process includes the use of alpha-olefin sulfonate dimer surfactants in the steam to form a foam-steam drive medium which is injected into the formation through at least one injection well to enhance the recovery of hydrocarbons from at least one production well.

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