Microemulsion method for improving the injectivity of a well

Details Microemulsion method for improving the injectivity of a well Microemulsion method for improving the injectivity of a well

1991-02-21

1992-03-17

Suchfield, George A.

Wells

Processes

Placing fluid into the formation

166273, 166275, 252 8554, E21B 4322

Patent

active

050959891

ABSTRACT:
A method for improving the injectivity of an injection well for water or gas injection into an underground hydrocarbon formation which comprises injecting into the formation through an injection well a sufficient amount of a solvent-in-water microemulsion comprising about 0.5% to about 5% by weight of an alkoxylated linear alcohol having about 10 to about 16 carbon atoms in the linear alcohol moiety and an average of about 5 to about 12 alkoxylate groups, about 0.5% to about 5% by weight of an alkylbenzene sulfonate having an alkyl chain of about 8 to about 20 carbon atoms, about 1% to about 10% by weight of an ethylene glycol alkylether solvent, and water.

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patent: 4690217 (1987-09-01), Taggart et al.
patent: 4882075 (1989-11-01), Jones

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