Method and compositions for acidizing and fracturing wells

Details Method and compositions for acidizing and fracturing wells Method and compositions for acidizing and fracturing wells

1982-07-30

1984-10-09

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, E21B 4327

Patent

active

044760337

ABSTRACT:
Gelled-acid compositions suitable for matrix-acidizing or fracture-acidizing of subterranean formations and methods of using the composition in these operations are provided wherein the compositions comprise water, water-dispersible acrylamide-derived polymer, an acid and an aldehyde precursor which hydrolyzes in aqueous acid media to produce aldehydes which in turn react with the polymer and gels the resulting mixture.

REFERENCES:
patent: 3923666 (1975-12-01), Dill
patent: 4191657 (1980-03-01), Swanson
patent: 4349443 (1982-09-01), Block
patent: 4366070 (1982-12-01), Block

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