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:
Aug. 14, 2012
Filed:
Sep. 13, 2007
Applicants:
Jean-philippe Caritey, Le Plessis Robinson, FR;
Mélanie Cady, Villebon sur Yvette, FR;
Inventors:
Jean-Philippe Caritey, Le Plessis Robinson, FR;
Mélanie Cady, Villebon sur Yvette, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/138 (2006.01); E21B 43/22 (2006.01); C09K 8/58 (2006.01); C09K 8/588 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compositions having shear-gelling and shear-thickening properties are based on an amphiphilic polymer combined with hydrophilic particles and polyethyleneoxide. The hydrophilic particles preferably consist of a hydrous sodium lithium magnesium silicate. The amphiphilic polymer may be a synthetic polymer, a hydrophobically modified biopolymer, or both. The compositions may be employed in enhanced oil recovery operations.