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:
Dec. 15, 1981
Filed:
Feb. 04, 1980
Applicant:
Inventors:
Nathandale Farris, Ponca City, OK (US);
Hilbert D Dahl, Pittsburgh, PA (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175 73 ; 175107 ; 175325 ; 175 76 ;
Abstract
A device for providing directional control to a borehole being drilled. The device is used with a drilling system including a drill string, a downhole motor and a bit rotated by the downhole motor. The device exerts a deflecting force perpendicular to the axis of the drill string when a lower than normal thrust is imposed on the drill string, and exerts an opposite perpendicular force when a higher than normal thrust is imposed on the drill string. When normal thrust is being used, the device does not cause deflection in either direction.