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:
Mar. 17, 2015
Filed:
Dec. 19, 2011
Wei Wang, Sugar Land, TX (US);
Colin Longfield, Sugar Land, TX (US);
David Merlau, Friendswood, TX (US);
Sebastian Ives, Pearland, TX (US);
Brad Bailey, Katy, TX (US);
Belinda D. Manning, Pearland, TX (US);
Wei Wang, Sugar Land, TX (US);
Colin Longfield, Sugar Land, TX (US);
David Merlau, Friendswood, TX (US);
Sebastian Ives, Pearland, TX (US);
Brad Bailey, Katy, TX (US);
Belinda D. Manning, Pearland, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure differential between atmospheric and hydrostatic chambers of the tool. Yet, the intermediate volumetric mechanism, whether in the form of a discrete chamber or a hydraulic line system, minimizes stresses of the differential pressure on tool hydraulics. Thus, failure rates are substantially reduced. So, for example, the tool may be reliably employed in downhole environments which present differential pressures in excess of about 30,000 PSI.