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. 08, 2015
Filed:
Dec. 09, 2011
Applicants:
Michael Jensen, Richmond, TX (US);
Ruben Martinez, Houston, TX (US);
Inventors:
Michael Jensen, Richmond, TX (US);
Ruben Martinez, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/02 (2006.01); E21B 4/00 (2006.01); E21B 4/18 (2006.01); E21B 23/14 (2006.01); E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
E21B 4/02 (2013.01); E21B 4/006 (2013.01); E21B 4/18 (2013.01); E21B 23/14 (2013.01); E21B 29/00 (2013.01); E21B 29/002 (2013.01);
Abstract
A rotatable downhole cutting tool configured for enhanced drive consistency in low power circumstances. The tool is equipped with a hydraulic axial drive actuator suitable for use in wireline deployment. The actuator itself includes a reciprocating piston with a ball screw that threadably interfaces a ball nut for dampening the axial drive imparted by the piston. As such, even though hydraulically driven at generally well under about 10 horsepower, bounce in the axial drive is substantially eliminated.