Shear-stabilized emulsion flooding process

Details Shear-stabilized emulsion flooding process Shear-stabilized emulsion flooding process

C - Chemistry, Metallurgy

09

K

31/13, 134/43

C09K 8/584 (2006.01)

Patent

CA 1168034

ABSTRACT Additional amounts of crude oil are recovered from a subterranean formation by flooding with a translucent emulsion comprising an upper- or middle-phase microemulsion as an external phase and a polymer-containing brine solution as an internal phase. The translucent emulsion tends to coalesce into its component phases under conditions of no shear, but is stabilized by low shears such as those imposed on fluids flowing through a subterranean formation.

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