Downhole tool for controlling the drilling course of a borehole

Details Downhole tool for controlling the drilling course of a borehole Downhole tool for controlling the drilling course of a borehole

1995-09-08

1997-02-18

Bagnell, David J.

Boring or penetrating the earth

Means traveling with tool to constrain tool to bore along...

Axially spaced opposed bore wall engaging guides

175 45, 1753253, E21B 706, E21B 4708

Patent

active

056033869

ABSTRACT:
A downhole tool connectable to a drill string by a connection atop the tool includes a mandrel for connection with the drill string, the mandrel being rotatable within a body. A plurality of blades are individually extendible radially from the body to engage the wall of a well bore, the radial position of the blades being adjustable between a first retracted position and a second extended position to position the centre line of the mandrel at a desired position relative to the longitudinal axis of the well bore. A positioning system is provided to hold each of the blades at the retracted position, the extended position or at any intermediate position therebetween.

REFERENCES:
patent: 3298449 (1967-01-01), Bachman et al.
patent: 3595326 (1971-07-01), Claycomb
patent: 5220963 (1993-06-01), Patton

Affiliated with

Also associated with

Rating

Downhole tool for controlling the drilling course of a borehole does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Downhole tool for controlling the drilling course of a borehole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole tool for controlling the drilling course of a borehole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1596850