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:
Oct. 31, 2017
Filed:
Oct. 23, 2013
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Andrey Mirakyan, Katy, TX (US);
Richard D. Hutchins, Sugar Land, TX (US);
Jesse C. Lee, Sugar Land, TX (US);
Syed A. Ali, Sugar Land, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/516 (2006.01); C09K 8/582 (2006.01); C09K 8/52 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
C09K 8/582 (2013.01); C09K 8/52 (2013.01); C09K 8/685 (2013.01); C09K 2208/08 (2013.01); C09K 2208/24 (2013.01);
Abstract
A method of treating a subterranean formation, the method including placing a well treatment fluid comprised of at least an enzyme and a breaker additive in the subterranean formation. Initially, the pH of the well treatment fluid is about 11.5. The breaker additive reduces the pH of the well treatment fluid by at least 1.5 to increase the activity of enzyme and accelerate hydrolysis of a crosslinkable component.