Conformance correction to improve hydrocarbon recovery from a su

Details Conformance correction to improve hydrocarbon recovery from a su Conformance correction to improve hydrocarbon recovery from a su

1986-12-10

1987-09-15

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

E21B 33138

Patent

active

046933107

ABSTRACT:
A non-crosslinking salt of a monovalent cation is added to a gelation solution comprising an acrylamide polymer and a redox crosslinking system to render the viscosity and uniformity of the resulting gel less sensitive to the concentrations of the gel components. The gel is used for conformance correction treatments of subterranean hydrocarbon-bearing formations to reduce the permeability of a high permeability zone adjacent a low permeability zone.

REFERENCES:
patent: Re29716 (1978-08-01), Clampitt et al.
patent: 3749172 (1973-07-01), Hessert et al.
patent: 3757863 (1973-09-01), Clampitt et al.
patent: 3762476 (1973-10-01), Gall
patent: 3909423 (1975-09-01), Hessert et al.
patent: 3926258 (1975-12-01), Hessert et al.
patent: 4110230 (1978-08-01), Hessert et al.
patent: 4148746 (1979-04-01), Klemmensen et al.

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