Alpha-olefin sulfonate dimer surfactant cyclic steam stimulation

Wells – Processes – Heating – cooling or insulating

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166309, E21B 4324

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active

046077006

ABSTRACT:
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 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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