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:
May. 03, 2011
Filed:
Aug. 17, 2007
Mark Milkovisch, Cypress, TX (US);
Alexander F. Zazovsky, Houston, TX (US);
Stephane Briquet, Houston, TX (US);
Christopher S. Del Campo, Houston, TX (US);
Raymond V. Nold, Iii, Beasley, TX (US);
Jonathan W. Brown, Nolsy le Rol, FR;
Kenneth L. Havlinek, Houston, TX (US);
Mark Milkovisch, Cypress, TX (US);
Alexander F. Zazovsky, Houston, TX (US);
Stephane Briquet, Houston, TX (US);
Christopher S. Del Campo, Houston, TX (US);
Raymond V. Nold, III, Beasley, TX (US);
Jonathan W. Brown, Nolsy le Rol, FR;
Kenneth L. Havlinek, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Apparatus and methods to control fluid flow in a downhole tool are disclosed. A disclosed example system includes a hydraulically actuatable device having a cavity for receiving pressurized hydraulic fluid stored by a reservoir, a first and a second hydraulic pump, a motor and means for selectively flowing hydraulic fluid from the outlet of at least one of the first and second pumps to the at least one cavity. The first and second hydraulic pumps include an inlet fluidly coupled to the reservoir and an outlet fluidly coupled to the cavity, and the motor is operatively coupled to at least one of the pumps.