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. 30, 2021
Filed:
Aug. 05, 2015
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Bipin Jain, Kuala Lumpur, MY;
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/14 (2006.01); C04B 28/04 (2006.01); C09K 8/467 (2006.01); C04B 28/18 (2006.01); C04B 28/34 (2006.01); E21B 43/26 (2006.01); C04B 28/32 (2006.01); C04B 28/00 (2006.01); C04B 28/14 (2006.01); E21B 33/138 (2006.01); C04B 28/06 (2006.01); C04B 24/26 (2006.01); C04B 103/00 (2006.01); C04B 103/46 (2006.01);
U.S. Cl.
CPC ...
E21B 33/14 (2013.01); C04B 24/2611 (2013.01); C04B 28/006 (2013.01); C04B 28/04 (2013.01); C04B 28/06 (2013.01); C04B 28/14 (2013.01); C04B 28/18 (2013.01); C04B 28/32 (2013.01); C04B 28/34 (2013.01); C09K 8/467 (2013.01); E21B 33/138 (2013.01); E21B 43/26 (2013.01); C04B 2103/0049 (2013.01); C04B 2103/465 (2013.01); Y02P 40/10 (2015.11); Y02W 30/91 (2015.05);
Abstract
Expansive cements for use in cementing subterranean wells comprise water, an inorganic cement and one or more particulate materials that swell upon contact with a water immiscible fluid. The cements may further comprise a water immiscible fluid. Such cements are designed to seal microannuli arising from the presence of water immiscible fluids on casing surfaces, borehole wall surfaces or both.