Composition and method for temporarily reducing permeability of

Details Composition and method for temporarily reducing permeability of Composition and method for temporarily reducing permeability of

1985-12-27

1987-12-29

Guynn, Herbert B.

Compositions

Leather or fur treating

166282, 166283, 252 8553, E21B 4327, E21B 4326

Patent

active

047159677

ABSTRACT:
This invention relates to a composition and method of temporarily reducing the permeability of subterranean formations penetrated by a wellbore. In particular, it relates to an inexpensive, low molecular weight condensation product of hydroxy acetic acid with itself or compounds containing other hydroxy-, carboxylic-acid-, or hydroxycarboxylic-acid moieties and method for preventing fluid loss during well treatment.

REFERENCES:
patent: 3302719 (1967-02-01), Fischer
patent: 3898167 (1975-08-01), Crowe
patent: 3989632 (1976-11-01), Fischer et al.
patent: 4526695 (1985-07-01), Erbstoesser et al.
Korshak et al., Polyesters, Pergamon Press, New York, 1965 (translated from Russian), pp. 86-105.

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