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. 30, 2018
Filed:
Aug. 20, 2015
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Kay Ann Galindo, Montgomery, TX (US);
Samuel James Maguire-Boyle, Houston, TX (US);
Assignee:
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/10 (2006.01); C09K 8/035 (2006.01); C09K 8/528 (2006.01); E21B 21/00 (2006.01); E21B 37/06 (2006.01); E21B 41/02 (2006.01); E21B 33/138 (2006.01);
U.S. Cl.
CPC ...
C09K 8/10 (2013.01); C09K 8/035 (2013.01); C09K 8/528 (2013.01); E21B 21/003 (2013.01); E21B 33/138 (2013.01); E21B 37/06 (2013.01); E21B 41/02 (2013.01); C09K 2208/12 (2013.01); C09K 2208/18 (2013.01); C09K 2208/24 (2013.01); C09K 2208/26 (2013.01); C09K 2208/32 (2013.01); E21B 2021/006 (2013.01);
Abstract
A method includes placing a downhole fluid including an aqueous base fluid and a viscosifying agent that includes a crosslinked borate-modified hydroxyethyl cellulose (mHEC) polymer in a wellbore penetrating a subterranean formation. Viscosifying agents include those whereby modified hydroxyethyl cellulose is crosslinked with a borate crosslinking agent to form a complex that has sufficient viscosifying and suspension properties to enable their use in downhole fluids.