Well treatment with emulsion dispersions

Details Well treatment with emulsion dispersions Well treatment with emulsion dispersions

1979-10-09

1982-11-16

Schofer, Joseph L.

Compositions

Leather or fur treating

252 855R, 252 85P, 166305R, 166308, 166271, C09K 300

Patent

active

043593917

ABSTRACT:
In a method of treating a subterranean formation, a well treatment composition comprising a dispersion of a water-in-oil emulsion in an aqueous medium is injected into the formation. The water-in-oil emulsion has an internal aqueous phase and an external phase containing a liquid hydrocarbon and a surfactant soluble in the hydrocarbon. The compositions can be designed to perform various well treatment applications including hydraulic fracturing and acidizing and can also be used to encapsulate or to transport well treatment materials and chemicals into the wellbore or formation. Treatment methods may also employ dispersions of a reactive simple or multiple emulsion. The distinct phases of the compositions may be selected to form treatment solutions upon mixing. Thus, improved acidizing may be achieved through an in situ reaction format.

REFERENCES:
patent: 3710865 (1973-01-01), Kiel
patent: 3799266 (1974-03-01), Kiel
patent: 3977472 (1976-08-01), Graham et al.
patent: 4098736 (1978-07-01), Li et al.

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