Block copolymers useful for enhanced oil recovery processes

Details Block copolymers useful for enhanced oil recovery processes Block copolymers useful for enhanced oil recovery processes

1988-09-16

1989-10-03

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166275, 166295, 166300, 252 8554, 523130, E21B 33138, E21B 4322

Patent

active

048710210

ABSTRACT:
Polymers and gels useful for permeability control in subterranean formations, said polymers having structural forms of ABA triblocks and (AB).sub.n multiblock are disclosed.

REFERENCES:
patent: 3867295 (1975-02-01), Schwab et al.
patent: 3954915 (1976-05-01), Schwab et al.
patent: 3984333 (1976-10-01), Van de Kraats et al.
patent: 4653585 (1987-03-01), Chung et al.
patent: 4776398 (1988-10-01), Chu et al.

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