Aqueous acid solution containing an acrylamido alkanesulfonic ac

Details Aqueous acid solution containing an acrylamido alkanesulfonic ac Aqueous acid solution containing an acrylamido alkanesulfonic ac

1979-01-08

1982-06-01

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, E21B 4327

Patent

active

043326889

ABSTRACT:
Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing sandstone and clay components, and aqueous solution of an acid such as hydrochloric acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer whereupon the acid solution reacts with the acid soluble components of the formation creating passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent production well.

REFERENCES:
patent: 2094479 (1937-09-01), Vandergrift
patent: 2763326 (1956-09-01), Cardwell et al.
patent: 3679000 (1972-07-01), Kaufman
patent: 3826312 (1974-07-01), Richardson et al.
patent: 3892720 (1975-07-01), Jahnke
patent: 3931089 (1976-01-01), Karl
patent: 4206058 (1980-06-01), Tate

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