Downhole circulation pump

Details Downhole circulation pump Downhole circulation pump

1986-04-28

1987-06-02

Novosad, Stephen J.

Boring or penetrating the earth

With below-ground tool drive prime mover

With means to anchor prime movers support to bore wall

175107, 418 48, E21B 402, E21B 420

Patent

active

046695559

ABSTRACT:
A pump for circulating fluids downhole. The rotor of a positive displacement pump transmits torque from the upper drill string section to a tool attached to the lower end of the pump. Bow springs prevent the stator portion of the pump from rotating in the wellbore. Fluid is counterflowed up the interior of the drill string by the positive displacement pump through a check valve into a settling chamber. Cuttings or other solids settle out of the fluid and the fluid is then pumped out through one or more discharge ports to the lowermost end of the drill string.

REFERENCES:
patent: 2828945 (1958-04-01), New
patent: 3766992 (1973-10-01), Tiraspolsky et al.
patent: 3912426 (1975-10-01), Tschirky
patent: 3982858 (1976-09-01), Tschirky
patent: 3999901 (1976-12-01), Tschirky
patent: 4011917 (1977-03-01), Tiraspolsky et al.
patent: 4059165 (1977-11-01), Clark
patent: 4221036 (1980-09-01), McCoy et al.
patent: 4305474 (1981-12-01), Farris et al.
patent: 4397619 (1983-08-01), Alliquander et al.
patent: 4492276 (1985-01-01), Kamp
patent: 4493383 (1985-01-01), Williams et al.
patent: 4592427 (1986-06-01), Morgan
"Bull Dog Bailer", Bull Dog Tool Inc. (brochure).

Affiliated with

Also associated with

Rating

Downhole circulation pump 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 circulation pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole circulation pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-606754