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:
Nov. 28, 2017
Filed:
Oct. 25, 2013
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Michael Pearce, Cheltenham, GB;
Junichi Sugiura, Bristol, GB;
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01); E21B 17/16 (2006.01); E21B 3/00 (2006.01); E21B 7/06 (2006.01);
U.S. Cl.
CPC ...
E21B 7/04 (2013.01); E21B 3/00 (2013.01); E21B 7/067 (2013.01); E21B 17/16 (2013.01);
Abstract
Rotary steerable drilling apparatus and methods utilizing apparatus comprising a shaft, a multi-angle strike ring axially repositionable along the shaft, an articulated member coupled to the shaft, and a steering member carried by the articulated member. An actuator is operable to maintain an angular offset of the articulated member relative to the shaft by maintaining azimuthally-dependent contact between the multi-angle strike ring and the steering member.