Oil recovery process involving the injection of thickened water

Details Oil recovery process involving the injection of thickened water Oil recovery process involving the injection of thickened water

C - Chemistry, Metallurgy

09

K

31/22

C09K 8/588 (2006.01)

Patent

CA 1098689

Abstract of the Disclosure Waterflood oil recovery process involving the use of an amphoteric polyelectrolyte as a thickening agent for mobility control. The amphoteric polyelectrolyte is a copolymer of a quaternary vinyl pyridinium sulfonate and a water-insoluble alpha olefin or hydrogenated diene. Specifically disclosed are vinyl pyridinium sulfonate- styrene block copolymers. The amphoteric polyelectrolytes are stable in high temperature and high brine environments.

324099

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