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:
Jun. 09, 2015
Filed:
Mar. 31, 2011
Applicants:
Leiming LI, Sugar Land, TX (US);
Lijun Lin, Sugar Land, TX (US);
Inventors:
Leiming Li, Sugar Land, TX (US);
Lijun Lin, Sugar Land, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/22 (2006.01); E21B 33/13 (2006.01); C09K 8/68 (2006.01); E21B 43/247 (2006.01);
U.S. Cl.
CPC ...
C09K 8/685 (2013.01); E21B 43/247 (2013.01); C09K 2208/24 (2013.01); C09K 2208/26 (2013.01);
Abstract
A method of treating a portion of a subterranean formation comprises providing a treatment fluid comprising a carrier fluid, a viscosifying agent, a breaker, and a breaker aid wherein the breaker aid slowly releases a catalyst, wherein the viscosifying agent and the breaker in the carrier fluid have an initial viscosity and the catalyst and the breaker cooperate to decrease the viscosity of the treatment fluid below half of the initial viscosity after at least 30 minutes; and treating the subterranean formation.