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:
Feb. 28, 2012
Filed:
Jul. 09, 2009
Control of the properties of cement slurries of normal densities with optimized polymers combination
Applicants:
Tariq Mehmood Khan, Paris, FR;
Bernard Piot, Montrouge, FR;
Siti Humairah Abd Rahman, Selangor, MY;
Inventors:
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/42 (2006.01); C04B 7/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses a cement slurry composition for cementing a well comprising: an hydraulic cement, water and a combination made of a cellulosic polymer and an acrylamido-methyl-propane sulfonate co- or ter-polymer, wherein the density of said cement slurry is above 1700 kg/m.
Khan, Tariq. (2012). Control of the properties of cement slurries of normal densities with optimized polymers combination (U.S. Patent No. 8124569). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8124569
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