Method for plugging high permeability zones in subterranean rese

Details Method for plugging high permeability zones in subterranean rese Method for plugging high permeability zones in subterranean rese

1979-02-07

1980-07-01

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166294, E21B 33138, E21B 4322

Patent

active

042102049

ABSTRACT:
Fresh water solutions of pectic materials are injected into high permeability zones in the subterranean reservoir wherein said materials upon contact with brine solutions form thick gels for the purpose of reducing the permeability of these high permeability zones thereby improving the vertical conformance efficiency of flooding operations within the reservoir.

REFERENCES:
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patent: 2681704 (1954-06-01), Menaul
patent: 3762476 (1973-10-01), Gall
patent: 3844348 (1974-10-01), Stratton
patent: 3848673 (1974-11-01), Clampitt et al.
patent: 3876438 (1975-04-01), Friedman et al.
patent: 3908760 (1975-09-01), Clampitt et al.
patent: 3949811 (1976-04-01), Threlkeld et al.
patent: 4039029 (1977-08-01), Gall
patent: 4120361 (1978-10-01), Threlkeld et al.

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