Pumping system comprising a high-capacity positive-displacement

Details Pumping system comprising a high-capacity positive-displacement Pumping system comprising a high-capacity positive-displacement

1994-12-16

1996-10-08

Vrablik, John J.

Rotary expansible chamber devices

With removal or accommodation of solid foreign material in...

With filter

418 48, 418102, F04C 200, F04C 500, F04C 1500

Patent

active

055624332

ABSTRACT:
The present invention relates to a system for pumping an effluent produced by a geologic formation at the bottom of a well, comprising a pump located in the well and rods connecting the pump to the surface. The pump includes at least a stator and a rotor. The rods are rotated by surface means driving the rotor into rotation to pump the fluid and to drive the fluid towards the surface through an annular pipe external to the rods. The system includes a mechanism for holding the rotor in the stator and for transmitting the rotation of the rods to the rotor. The pump includes means suited for allowing injection, from discharge area (26), of at least part of the effluent produced into the mechanism so as to ensure the lubrication thereof.

REFERENCES:
patent: 1917821 (1933-07-01), Branstrator
patent: 2255918 (1941-09-01), Downs
patent: 2267459 (1941-12-01), Hait
patent: 2463341 (1949-03-01), Wade
patent: 3677665 (1972-07-01), Corkill
patent: 3753628 (1973-08-01), Becker
patent: 3802803 (1974-04-01), Bogdanov et al.

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