Acidizing fluid for stimulation of subterranean formations

Details Acidizing fluid for stimulation of subterranean formations Acidizing fluid for stimulation of subterranean formations

1973-08-30

1976-05-04

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, E21B 4327

Patent

active

039546365

ABSTRACT:
The present invention relates to a composition and method for the acid stimulation of subterranean formations containing a fluid to be recovered. The composition comprises a mixture of an acid which solubilizes at least a portion of the formation, an alcohol in which said acid and carbon dioxide are soluble, and a small proportion of water and carbon dioxide. In practicing the method the composition is prepared as a liquid mixture, introduced into the formation under pressure, allowed to react with the formation and then the pressure is released to recover spent acid.

REFERENCES:
patent: 2024718 (1935-12-01), Chamberlain
patent: 2059459 (1936-11-01), Hund et al.
patent: 3076762 (1963-02-01), Dill
patent: 3396107 (1968-08-01), Hill
patent: 3664422 (1972-05-01), Bullen
patent: 3819520 (1974-06-01), Jones et al.
Kingston, Acidizing Handbook, Pub. 1947 by Gulf Publishing Co., Houston, Texas, pp. 45 and 46.

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