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:
Jun. 30, 2020
Filed:
Jul. 29, 2015
Halliburton Energy Services, Inc., Houston, TX (US);
Daniel Martin Winslow, Spring, TX (US);
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Abstract
Systems and methods of counteracting downhole reactive forces within a directional drilling tool are disclosed. The directional drilling tool includes a steering mechanism for selectively pivoting a bit shaft with respect to an elongate housing. A preloaded flexible member may be provided between an upper end of the bit shaft and an elongate housing to counteract reactive forces applied by a geological formation on a drill bit at a lower end of the bit shaft. Where sufficient reactive forces are transmitted through the bit shaft to overcome the preload, the flexible member will be induced to flex, permitting some movement of the upper end of the bit shaft. This movement limits the force that may be applied by the steering mechanism, which can extend the useful life of the directional drilling tool and may permit the power required to drive the drill bit to be maintained at a consistent value.