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. 27, 2012
Filed:
Aug. 27, 2010
Applicants:
Joel Rondeau, Antony, FR;
André Salvaire, Montigny le Bretonneux, FR;
Inventors:
Joel Rondeau, Antony, FR;
André Salvaire, Montigny le Bretonneux, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Equipment for servicing subterranean wells, and in some cases, an apparatus and method for remotely launching cementing plugs during the primary cementation of a subterranean well. The top plug and bottom plug are launched by different mechanisms, thereby preventing premature release of the top plug during a cementing operation.