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:
Nov. 14, 2017

Filed:

May. 14, 2013
Applicants:

Donald Keith Trichel, Houston, TX (US);

Andreas Peter, Celle, DE;

Oliver Hoehn, Celle, DE;

Steffen Schulze, Celle, DE;

Inventors:

Donald Keith Trichel, Houston, TX (US);

Andreas Peter, Celle, DE;

Oliver Hoehn, Celle, DE;

Steffen Schulze, Celle, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/00 (2006.01); E21B 47/024 (2006.01); E21B 7/06 (2006.01);
U.S. Cl.
CPC ...
E21B 44/00 (2013.01); E21B 7/062 (2013.01); E21B 47/024 (2013.01);
Abstract

An apparatus for drilling a borehole into an earth formation includes: a drill bit configured to be rotated to drill into the formation; a drill tubular coupled to the drill bit and configured to rotate the drill bit; a steering device coupled to the drill string and configured to impart a force on the drill string to control a direction of drilling; and a controller configured to communicate a control signal to the steering device. The control signal includes information for directing actuation of the steering device for steering the drill bit in an intended drilling direction. The controller is further configured to direct the steering device to provide a compensating force on the drill string that prevents or reduces an azimuthal deviation from the intended drilling direction due to drill bit walking.


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