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:
Nov. 14, 2017
Filed:
Apr. 07, 2014
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Eli Allen Schnoor, Kingwood, TX (US);
Aaron Gene Russell, Humble, TX (US);
Lucas Fontenelle, Houston, TX (US);
Jeremy Holtsclaw, Kingwood, TX (US);
Ali Alwattari, Humble, TX (US);
Dipti Singh, Kingwood, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/00 (2006.01); C09K 8/035 (2006.01); C09K 8/512 (2006.01); C09K 8/514 (2006.01); C09K 8/90 (2006.01); C09K 8/88 (2006.01); C09K 8/68 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
E21B 37/00 (2013.01); C09K 8/035 (2013.01); C09K 8/512 (2013.01); C09K 8/514 (2013.01); C09K 8/685 (2013.01); C09K 8/887 (2013.01); C09K 8/90 (2013.01); C09K 8/905 (2013.01); C09K 2208/26 (2013.01); E21B 43/26 (2013.01);
Abstract
A method is provided for improved degradation of metal-crosslinked polymer gels, which are useful in oil and gas treating operations. In this method a polysaccharide having a higher degree of substitution than the polymer in the polymer gel is added to the gel. The polysaccharide removes the crosslinking metal ion from the gel to thus break down the gel and reduce its viscosity.