Method of treating an underground formation

Details Method of treating an underground formation Method of treating an underground formation

1998-08-06

2000-07-11

Tsay, Frank

Wells

Processes

Cementing, plugging or consolidating

166300, E21B 33138

Patent

active

060858427

ABSTRACT:
A method of treating an underground formation is provided, the method including sequential steps of:
(a) contacting the formation with an aqueous medium;
(b) contacting the formation with a hydrocarbon fluid;
(c) contacting the formation with a solvent in the form of a glycol ether;
(d) contacting the formation with a consolidation solution of between 30 and 60 % m of monomeric and/or polymeric organic polyepoxides having more than one epoxy group per molecule and between 5 and 20% m of a curing agent in the solvent; and
(e) contacting the formation with a viscosified fluid containing aliphatic hydrocarbons.

REFERENCES:
patent: 3481403 (1969-12-01), Gidley et al.
patent: 3552493 (1971-01-01), Bezemer
patent: 3741308 (1973-06-01), Veley
patent: 3915232 (1975-10-01), Gruesbeck et al.
patent: 4428426 (1984-01-01), Davies et al.
patent: 5423381 (1995-06-01), Surles et al.
International Search Report of Mar. 24, 1997.

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