Process for the extraction of crude oil from an underground...

Details Process for the extraction of crude oil from an underground... Process for the extraction of crude oil from an underground...

E - Fixed Constructions

21

B

31/26

E21B 43/22 (2006.01) C09K 8/60 (2006.01) C09K 8/90 (2006.01)

Patent

CA 1314703

23443-360 Abstract of the Disclosure Disclosed is a process for the extraction of crude oil from an underground deposit using surfactants. Mixtures of alkyl (poly)glycosides and conventional co-solvents are used as the surfactants. The alkyl (poly)glycosides have the formula: R - O - Zn (I) (in which R is a linear or branched, saturated or unsaturated aliphatic hydrocarbon radical, Z is a hexose or pentose unit, and n is a number on average of 1 to 10). Crude oil can be efficiently extracted even from deposits whose salinities and temperatures vary widely.

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