Shear-stabilized emulsion flooding process

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

1980-06-19

1982-06-29

Guynn, Herbert B.

Compositions

Leather or fur treating

166273, 166274, E21B 4322

Patent

active

043371590

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.

REFERENCES:
patent: 3885628 (1975-05-01), Reed et al.
patent: 3981361 (1976-09-01), Healy
patent: 3983940 (1976-10-01), Carpenter et al.
patent: 4059154 (1977-11-01), Braden et al.
patent: 4125156 (1978-11-01), Glinsmann
patent: 4240504 (1980-12-01), Reed
Healy et al., Article in Society of Petroleum Engineers Journal, 1976, pp. 147-160.

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