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.

Date of Patent:
Oct. 25, 2016

Filed:

Jul. 14, 2014
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Patrice Abivin, Houston, TX (US);

Wingki Lee, Houston, TX (US);

Sergey Makarychev-Mikhailov, St. Petersburg, RU;

Michael D. Parris, Richmond, TX (US);

Andrey Mirakyan, Katy, TX (US);

Rasika Prabhu, Houston, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/22 (2006.01); E21B 43/26 (2006.01); C09K 8/88 (2006.01); C09K 8/68 (2006.01); E21B 43/25 (2006.01); C09K 8/03 (2006.01); C09K 8/90 (2006.01); C09K 8/92 (2006.01); C09K 8/70 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
C09K 8/887 (2013.01); C09K 8/03 (2013.01); C09K 8/685 (2013.01); C09K 8/706 (2013.01); C09K 8/90 (2013.01); C09K 8/92 (2013.01); E21B 43/16 (2013.01); E21B 43/25 (2013.01);
Abstract

A method of treating a subterranean formation penetrated by a wellbore includes introducing a treatment fluid comprised at least a crosslinkable component, and a metal crosslinker to the subterranean formation, forming a crosslinked treatment fluid, and de-crosslinking bonds of the crosslinked treatment fluid by manipulating a pH of the treatment fluid with a pH triggering agent, wherein the pH triggering agent is an amine-precursor compound or a derivative thereof.


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