Method and composition for acidizing subterranean formations

Details Method and composition for acidizing subterranean formations Method and composition for acidizing subterranean formations

1975-12-24

1977-10-25

Guynn, Herbert B.

Compositions

Leather or fur treating

166282, 166307, 252 855R, 252316, E21B 4327

Patent

active

040555020

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 polymer of acrylamide, an acid, and a flavotannin gelling agent. In a preferred embodiment, said compositions also comprise a gelation promoter, e.g., sodium dichromate or potassium dichromate.

REFERENCES:
patent: 3216962 (1965-11-01), Gatza
patent: 3252904 (1966-05-01), Carpenter
patent: 3301323 (1967-01-01), Parsons
patent: 3679000 (1972-07-01), Kaufman
patent: 3727689 (1973-04-01), Clampitt
patent: 3768565 (1973-10-01), Persinski et al.
patent: 3868328 (1975-02-01), Boothe et al.

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