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:
Aug. 14, 2012

Filed:

Oct. 28, 2009
Applicants:

Yiyan Chen, Sugar Land, TX (US);

Oscar Bustos, Katy, TX (US);

Philip F. Sullivan, Bellaire, TX (US);

Inventors:

Yiyan Chen, Sugar Land, TX (US);

Oscar Bustos, Katy, TX (US);

Philip F. Sullivan, Bellaire, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/00 (2006.01); E21B 43/25 (2006.01); E21B 43/26 (2006.01); E21B 43/27 (2006.01); C09K 8/52 (2006.01); C09K 8/68 (2006.01); C09K 8/86 (2006.01);
U.S. Cl.
CPC ...
Abstract

A well treatment composition is formed from a fluid mixture of a viscoelastic surfactant and a liquid carrier fluid. The fluid mixture has rheological properties wherein the mixture exhibits shear-thickening behavior when the shear rate is increased from a first shear rate to a second higher shear rate. The fluid mixture may further include a shear activation additive that interacts with the viscoelastic surfactant to facilitate the shear-thickening behavior. The method is accomplished by introducing the fluid mixture into a wellbore formed in a subterranean formation. In certain applications, the fluid mixture may be recycled by bringing the fluid mixture to the surface and reintroducing the fluid into the same or a different wellbore.


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