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:
Sep. 01, 2015
Filed:
Jul. 10, 2009
Reinhart Ciglenec, Katy, TX (US);
Steven G. Villareal, Houston, TX (US);
Albert Hoefel, Sugar Land, TX (US);
Peter Swinburne, Houston, TX (US);
Michael J. Stucker, Sugar Land, TX (US);
Jean-marc Follini, Houston, TX (US);
Reinhart Ciglenec, Katy, TX (US);
Steven G. Villareal, Houston, TX (US);
Albert Hoefel, Sugar Land, TX (US);
Peter Swinburne, Houston, TX (US);
Michael J. Stucker, Sugar Land, TX (US);
Jean-Marc Follini, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A while-drilling tool comprising a motor, a transmission coupled to the motor, and a pump comprising a first piston disposed in a first chamber and a second piston disposed in a second chamber and coupled to the first piston. A planetary roller-screw is coupled between the pump and the transmission. A valve block is configured to fluidly communicate with the first and second pump chambers, a borehole in which the while-drilling tool is configured to be positioned, and a formation penetrated by the borehole.