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:
Aug. 02, 2016
Filed:
Jun. 02, 2014
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Eric E. Maidla, Houston, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/06 (2006.01); E21B 7/04 (2006.01); E21B 44/04 (2006.01); E21B 47/12 (2012.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
E21B 7/068 (2013.01); E21B 7/04 (2013.01); E21B 44/04 (2013.01); E21B 47/0006 (2013.01); E21B 47/12 (2013.01);
Abstract
A method and system for directionally drilling a wellbore. The method includes measuring an off-bottom rotating torque applied to a drill string in the wellbore. A steerable drilling motor is oriented proximate a bottom of the drill string in a selected direction, and a surface rotational orientation of the drill string is measured. Torque is applied to the drill string at the surface to maintain the surface rotational orientation. The applied torque is automatically increased and decreased by a selected amount related to the measured off-bottom rotating torque.