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:
May. 26, 2015

Filed:

Jun. 20, 2012
Applicants:

David Abney, Rowlett, TX (US);

Morgan Crow, Ovilla, TX (US);

Anthony C. Muse, Terrell, TX (US);

Andre Orban, Sugar Lane, TX (US);

Stan Weise, Waxahachie, TX (US);

Inventors:

David Abney, Rowlett, TX (US);

Morgan Crow, Ovilla, TX (US);

Anthony C. Muse, Terrell, TX (US);

Andre Orban, Sugar Lane, TX (US);

Stan Weise, Waxahachie, TX (US);

Assignee:

David L. Abney, Inc., Seagoville, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01); E21B 7/06 (2006.01); E21B 17/02 (2006.01);
U.S. Cl.
CPC ...
E21B 7/04 (2013.01); E21B 7/067 (2013.01); E21B 17/02 (2013.01);
Abstract

An adjustable bent drilling tool capable of changing in situ drilling direction to facilitate horizontal drilling. The drilling tool may be controlled from the surface and eliminates the need to bring the tool to the surface for reconfiguration. In one embodiment, the drilling tool utilizes a communications module to communicate with upstream sections of the tool. The communications module is connected to a programmable electronic control module which controls an electric motor. A hydraulic valve assembly follows the control module, which receives input signals and controls a pilot piston between two fixed points of a mid-assembly typically located adjacent to and downstream of the hydraulic valve assembly on the drill tool. A lower assembly is attached to the drill tool immediately following the mid-assembly, and provides both a safety release sub-assembly as well as a bendable sub-assembly which directs the adjustable drill tool to change drilling angle and direction.


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