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. 24, 2015
Filed:
Dec. 01, 2005
Applicants:
Michel Michaux, Verrieres le Buisson, FR;
Bruno Drochon, Missouri City, TX (US);
Sylwia Komocki, Chatenay Malabry, FR;
Inventors:
Michel Michaux, Verrieres le Buisson, FR;
Bruno Drochon, Missouri City, TX (US);
Sylwia Komocki, Chatenay Malabry, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/00 (2006.01); C08L 41/00 (2006.01); C08L 33/24 (2006.01); C08L 29/00 (2006.01); C08L 25/02 (2006.01); C08G 61/02 (2006.01); C08L 65/00 (2006.01); C08F 283/00 (2006.01); C08L 77/00 (2006.01); C08G 18/62 (2006.01); C04B 40/00 (2006.01); C04B 28/02 (2006.01); C09K 8/487 (2006.01);
U.S. Cl.
CPC ...
C04B 40/0039 (2013.01); C04B 28/02 (2013.01); C09K 8/487 (2013.01);
Abstract
It is proposed a new fluid loss control agent useful for the cementation of oil or gas wells. This fluid loss control agent consists of a mixture of a styrene-butadiene latex and a high molecular weight water-soluble polymer such as a copolymer AMPS-Am. The addition of the water-soluble polymer allows drastic reduction of the quantity of latex required to achieve fluid loss control performance and even gas migration control.