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:
Jan. 29, 2013
Filed:
Oct. 15, 2010
Scott Boone, Houston, TX (US);
Brian Ellis, Houston, TX (US);
Beat Küttel, Spring, TX (US);
John Thomas Scarborough, Houston, TX (US);
Chris Papouras, Houston, TX (US);
Scott Boone, Houston, TX (US);
Brian Ellis, Houston, TX (US);
Beat Küttel, Spring, TX (US);
John Thomas Scarborough, Houston, TX (US);
Chris Papouras, Houston, TX (US);
Canrig Drilling Technology Ltd., Magnolia, TX (US);
Abstract
Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the hydraulic motor via monitoring a drilling operation parameter indicative of a difference between the actual toolface orientation and a desired toolface orientation, and then adjusting a position of the quill by an amount that is dependent upon the monitored drilling operation parameter.