Composition for acidizing subterranean formations

Details Composition for acidizing subterranean formations Composition for acidizing subterranean formations

1977-10-27

1979-10-02

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, 252 855R, E21B 4327

Patent

active

041697979

ABSTRACT:
Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operation, are provided. Said compositions comprise water, a water-soluble cellulose ether, an acid, a water-soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said cellulose ether and said acid, and a reducing agent capable of reducing said metal and causing said gelation.

REFERENCES:
patent: 2778427 (1957-01-01), Cardwell et al.
patent: 3727688 (1973-04-01), Clampitt
patent: 3845822 (1974-11-01), Clampitt et al.
patent: 4021355 (1977-05-01), Holtmyer et al.

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