Controllable downhole directional drilling tool

Details Controllable downhole directional drilling tool Controllable downhole directional drilling tool

E - Fixed Constructions

21

B

255/6

E21B 7/04 (2006.01)

Patent

CA 1257580

- 1 - Abstract: A directional drilling tool permits the control of the drilling angle of a drill bit through the repeated placement or removal of a ball within the mudstream. The ball activates a clutch mechanism within the directional drilling tour. The clutch mechanism upon activation, locks the exterior of the directional drilling sub to a fixed annular orientation. Simultaneously, there is activated a deflection mechanism to deflect a drive shaft which is normally fixed in an aligned straight position within the tube body, so as to shift the normally straight aligned shaft to a deflected position, causing the bit and the sub to angle for drilling at a controlled angle of off- set from the vertical. A second embodiment utilizes a deflection cam engaging the drive shaft directly to effect the deflection of the shaft.

501754

Affiliated with

Also associated with

Rating

Controllable downhole directional drilling tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controllable downhole directional drilling tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controllable downhole directional drilling tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1287830