Process for recovering oil

Details Process for recovering oil Process for recovering oil

E - Fixed Constructions

21

B

31/14

E21B 43/22 (2006.01) B01F 17/04 (2006.01) C09K 8/594 (2006.01) E21B 43/24 (2006.01)

Patent

CA 1316681

T 8170 A B S T R A C T PROCESS FOR RECOVERING OIL An improved process for recovering oil by flowing a mixture of steam and steam foam surfactant into an oil-containing subterranean reservoir, the improvement provided by using surfactants enriched in olefin disulfonate. The surfactants may be used in either a steam drive or a steam soak process. Disulfonate-enriched steam foam surfactants and mixtures are also described. T9/t8170.doc

574939

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