The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 03, 2007

Filed:

Oct. 20, 2004
Applicants:

Diankui Fu, Missouri City, TX (US);

Mohan Panga, Houston, TX (US);

Slaheddine Kefi, Cottenham, GB;

Marieliz Garcia-lopez DE Victoria, Houston, TX (US);

Inventors:

Diankui Fu, Missouri City, TX (US);

Mohan Panga, Houston, TX (US);

Slaheddine Kefi, Cottenham, GB;

Marieliz Garcia-Lopez de Victoria, Houston, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); E21B 43/25 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method is described for treating a subterranean formation with a low viscosity fluid system that contains a viscoelastic surfactant at a concentration too low to viscosify the fluid, but that is concentrated in the formation so that the fluid system gels. The fluid optionally contains a formation-dissolving agent. The fluid is used in matrix acidizing, acid fracturing, and diversion.


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