Sulfonate dimer surfactant cyclic steam stimulation process...

Details Sulfonate dimer surfactant cyclic steam stimulation process... Sulfonate dimer surfactant cyclic steam stimulation process...

E - Fixed Constructions

21

B

31/14

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

Patent

CA 1230962

ABSTRACT OF THE DISCLOSURE An improved cyclic 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 an injection well to enhance the recovery of hydrocarbons from said well when it is in a production well mode of operation.

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