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.

Date of Patent:
Dec. 10, 2013

Filed:

Jan. 15, 2013
Applicant:

Canrig Drilling Technology Ltd., Houston, TX (US);

Inventors:

Scott Boone, Houston, TX (US);

Brian Ellis, Houston, TX (US);

Beat Kuttel, Houston, TX (US);

John Thomas Scarborough, Houston, TX (US);

Chris Papouras, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Apparatus and methods to steer a hydraulic motor when elongating a wellbore having a non-vertical component that includes a quill adapted to transfer torque, rotation, or position between a drive assembly and a drillstring, a bottom hole assembly (BHA) including a toolface orientation detector and at least one measurement while drilling (MWD) instrument or wireline-conveyed instrument, and a controller configured to transmit operational control signals to minimize friction between a drillstring and a wellbore, wherein the instrument is configured to detect pressure between an external surface of the BHA and an inner diameter of the wellbore.


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