E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/04 (2006.01) E21B 4/02 (2006.01) E21B 7/06 (2006.01) E21B 21/10 (2006.01) E21B 23/04 (2006.01)
Patent
CA 2189834
A subterranean drilling assembly for linear and nonlinear drilling. A downhole motor-based bottomhole assembly with a bit deflection device includes a torque compensation device and is secured to the drill string via a swivel to permit independent rotation of the string and the bottomhole assembly. In the case of a drill pipe string, the string may be rotated continuously during both linear and nonlinear drilling to reduce drag. In the case of a tubing string, the bottomhole assembly is rotated by the torque compensation device during straight drilling. In both cases, the torque compensation device is employed to adjust TFO for nonlinear drilling when the bottomhole assembly is not rotated. In an alternative embodiment, a torque-sensitive clutch is employed in lieu of the torque compensation device to provide rotational orientation to, and rotation o~ the bottomhole assembly.
Ehlers Ralph
Williams Michael P.
Baker Hughes Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
Method and apparatus for navigational drilling with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for navigational drilling with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for navigational drilling with a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1959328