Temporary plugging agent

Details Temporary plugging agent Temporary plugging agent

1992-11-02

1993-12-21

Neuder, William P.

Wells

Processes

Cementing, plugging or consolidating

252 8552, E21B 3313

Patent

active

052714640

ABSTRACT:
The present invention provides a method of temporarily plugging or sealing a subterranean formation by introducing a rapidly viscosifying liquid hydrocarbon into the formation. The method is accomplished by admixing a first component comprising an alkyl orthophosphate acid ester and an alkali metal hydroxide present in an amount sufficient to at least partially neutralize said ester and a second component comprising an amine complex resulting from the reaction of an aqueous source of aluminum or ferric ions and a C.sub.8 -C.sub.18 surface active amine in the presence of a water miscible organic solvent with the liquid hydrocarbon. The mixture rapidly viscosifies to a level sufficient to temporarily plug or seal a subterranean formation or wellbore into which it is introduced.

REFERENCES:
patent: 3613788 (1971-10-01), Kautsky
patent: 3619427 (1971-11-01), Kautsky

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