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. 02, 2008
Filed:
Sep. 17, 2007
Applicants:
Emmanuel Rioufol, Lons, FR;
Brian W. Cho, Kanagawa-ken, JP;
Mark W. Brockman, Houston, TX (US);
Philippe Gambier, Houston, TX (US);
Inventors:
Emmanuel Rioufol, Lons, FR;
Brian W. Cho, Kanagawa-ken, JP;
Mark W. Brockman, Houston, TX (US);
Philippe Gambier, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method is provided to measure a pressure or other characteristic at a source (e.g. a hydraulic power supply) and in or near a downhole tool. A comparison of the measurements is then made to verify that the system is operating according to desired parameters. In specific applications, the comparison can be made to ensure the supply of hydraulic fluid is reaching the downhole tool.