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:
Dec. 11, 2012
Filed:
Sep. 10, 2010
Applicant:
Joel Rondeau, Antony, FR;
Inventor:
Joel Rondeau, Antony, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus and methods for remotely launching cementing plugs during the primary cementation of a subterranean well. The apparatus includes a flexible sleeve that absorbs force exerted by activation devices as they arrive at a cementing head, thereby preventing premature release of a cementing plug.