Self diverting matrix acid

Details Self diverting matrix acid Self diverting matrix acid

2007-11-27

2007-11-27

Gay, Jennifer H. (Department: 3676)

Wells

Processes

Material placed in pores of formation to treat resident...

C166S282000, C166S307000

Reexamination Certificate

active

11292029

ABSTRACT:
A method is described for treating a subterranean formation with a low viscosity fluid system that contains a surfactant or mixture of surfactants that does not divert fluid flow in the formation, but that develops the ability to divert flow as the fluid flows through the formation. The fluid optionally contains a formation-dissolving agent. The fluid is used in matrix acidizing, acid fracturing, and diversion.

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U.S. Appl. No. 10/969,110—Self Diverting Matrix Acid.

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