Composition for acidizing subterranean formations

Details Composition for acidizing subterranean formations Composition for acidizing subterranean formations

1977-10-27

1979-03-27

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, 252 855R, 252316, E21B 4327

Patent

active

041464869

ABSTRACT:
Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-dispersible biopolysaccharide, 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 biopolysaccharide and said acid, and a reducing agent capable of reducing said metal and causing said gelation.

REFERENCES:
patent: 3236305 (1966-02-01), Parks
patent: 3252904 (1966-05-01), Carpenter
patent: 3727688 (1973-04-01), Clampitt
patent: 3757863 (1973-09-01), Clampitt et al.
patent: 3908760 (1975-09-01), Clampitt et al.
patent: 4021355 (1977-05-01), Holtmyer et al.

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