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.
Patent No.:
Date of Patent:
Jan. 05, 2016
Filed:
Mar. 12, 2013
Applicant:
Ecolab Usa Inc., Naperville, IL (US);
Inventors:
Jingshe Song, Sugar Land, TX (US);
Jesse Vincent Mello, Missouri City, TX (US);
Lulu Song, Sugar Land, TX (US);
Assignee:
Ecolab USA Inc., Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
C09K 8/68 (2013.01); E21B 43/26 (2013.01); C09K 2208/30 (2013.01);
Abstract
The present invention is directed to fracturing fluids having temperature-sensitive viscosities. The fracturing fluids may include a mixture of a hydrophobically associative polymer (HAP) and a surfactant in an aqueous medium, wherein the surfactant imparts a critical solution temperature (CST) to the fluid. The fluid is more viscous at temperatures lower than the CST as compared to temperatures above the CST.