Rotary directional drilling apparatus and method of use

Details Rotary directional drilling apparatus and method of use Rotary directional drilling apparatus and method of use

2011-02-01

2011-02-01

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

Reexamination Certificate

active

07878267

ABSTRACT:
An apparatus for steering a drill string is disclosed herein, the apparatus comprising a drilling motor comprising a rotor, a stator, and at least one fluid passage for flowing drilling fluid to the stator. A blade is fixedly disposed on the exterior surface of the stator. A diverter valve controls the flow rate of drilling fluid to the stator, to provide counter rotational movement to the stator with respect to the rotor. Placement and movement of the blade is thereby controlled. When the blade is rotated such that it remains stationary with respect to a fixed point in a borehole, the drill bit is turned. When the blade is counter-rotated in a constant motion with respect to the rotor, the drill bit continues to drill in a straight direction.

REFERENCES:
patent: 5706905 (1998-01-01), Barr
patent: 5778992 (1998-07-01), Fuller
patent: 6209664 (2001-04-01), Chaffaut
patent: 6394193 (2002-05-01), Askew
patent: 7188685 (2007-03-01), Downton
patent: 2006/0243493 (2006-11-01), El-Rayes et al.
patent: 2009/0095528 (2009-04-01), Hay et al.

Affiliated with

Also associated with

Rating

Rotary directional drilling apparatus and method of use does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary directional drilling apparatus and method of use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary directional drilling apparatus and method of use will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2642932