Methods of using aqueous gels

Details Methods of using aqueous gels Methods of using aqueous gels

1980-05-22

1982-03-30

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166293, 166300, 166302, 166308, 175 65, 252 855C, 252 855D, 252 85A, E21B 4322, E21B 43267, E21B 33138

Patent

active

043219683

ABSTRACT:
Carboxymethylhydroxyethyl cellulose in aqueous brine solutions is gelled by the addition of an alkaline earth metal hydroxide such as calcium hydroxide. The gelled compositions have utility as water diversion agents, pusher fluids, fracturing fluids, drilling muds, work-over fluids, and completion fluids.

REFERENCES:
patent: 3378070 (1968-04-01), Wessler et al.
patent: 3417820 (1968-12-01), Epler et al.
patent: 3611733 (1971-10-01), Eilers et al.
patent: 3727687 (1973-04-01), Clampitt et al.
patent: 3848673 (1974-11-01), Clampitt et al.
patent: 3962099 (1976-06-01), Whitfill
patent: 3996351 (1976-12-01), Bauer et al.
patent: 4025443 (1977-05-01), Jackson
patent: 4110231 (1978-08-01), Swanson
patent: 4151096 (1979-04-01), Jackson

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