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. 17, 2011
Filed:
Nov. 16, 2006
Applicants:
Ashley Johnson, Cambridge, GB;
John Cook, Cambridge, GB;
Paul Wand, Cambs, GB;
Steven Hart, Yate, GB;
Inventors:
Ashley Johnson, Cambridge, GB;
John Cook, Cambridge, GB;
Paul Wand, Cambs, GB;
Steven Hart, Yate, GB;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A steerable drilling system comprises a rotary drill bitsecured to a housing, a secondary rotary drill componentcarried by the housing and rotatable therewith, the second rotary drill componenthaving a gauge dimension greater than that of the rotary drill bit, and a drive arrangement operable to displace the secondary rotary drill componentrelative to the housingwhile maintaining an axisof the secondary rotary drill componentsubstantially parallel to an axisof the housing