Active drill stabilizer assembly

Details Active drill stabilizer assembly Active drill stabilizer assembly

1979-11-15

1980-12-30

Pate, III, William F.

Boring or penetrating the earth

Automatic control

175 45, 175 76, 33178F, E21B 4400

Patent

active

042417961

ABSTRACT:
The present disclosure concerns an active drill stabilizer assembly for arrangement in a drill string directly behind a conventional or modified drill bit that utilizes drilling fluid as a sensing and working deviation/correction energy source. In a sensing loop of the present invention, the drilling fluid passes through groups of pitch and yaw sensor outlet ports and orifices that direct the fluid against the bore-hold side wall. The flow through the orifices is proportional to the gaps between the outlet ports and the well bore side wall and grouping of the sensors provides for an "averaging effect" to the fluid flow that ignores local side wall surface irregularities and produces an instantaneous venturi throat pressure for each axis.

REFERENCES:
patent: 2358769 (1944-09-01), Aller
patent: 3313360 (1967-04-01), Frisby
patent: 3823787 (1974-07-01), Hawarth et al.
patent: 3853186 (1974-12-01), Dahl
patent: 3997008 (1976-12-01), Kellner
patent: 4016747 (1977-04-01), Rader
patent: 4164871 (1979-08-01), Cole et al.

Affiliated with

Also associated with

Rating

Active drill stabilizer assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active drill stabilizer assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active drill stabilizer assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2871