Composition for acidizing subterranean formations

Details Composition for acidizing subterranean formations Composition for acidizing subterranean formations

1977-10-27

1979-10-23

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, 252 855R, E21B 4327

Patent

active

041720415

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

REFERENCES:
patent: 3252904 (1966-05-01), Carpenter
patent: 3415319 (1968-12-01), Gibson
patent: 3502149 (1970-03-01), Pence
patent: 3727689 (1973-04-01), Clampitt
patent: 3923666 (1975-12-01), Dill

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