Method and apparatus for artificial lift from multiple productio

Details Method and apparatus for artificial lift from multiple productio Method and apparatus for artificial lift from multiple productio

1975-09-12

1976-08-17

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

166106, 1661055, E21B 4300, E21B 3900

Patent

active

039748782

ABSTRACT:
A relatively large power fluid tubing is run downhole and connected to a relatively small power fluid tubing. The small power fluid tubing is connected to the valve assembly of a downhole pump. The small diameter tubing and pump is enclosed within a production tubing having the lower end thereof sealed to the pump inlet, with the lower end of the pump being placed in fluid communication with formation fluid. The upper end of the production tubing is vented and supported from the relatively large diameter power fluid tubing. A packer is disposed below the vent. Production from the pump occurs through an annulus which is formed between the small power tubing and the production tubing. Produced fluid from the pump flows through the annulus, through the vent, and up through the borehole annulus, while power fluid flows to the valve assembly of the pump engine by means of the series connected large and small power fluid tubing.

REFERENCES:
patent: 2242166 (1941-05-01), Bennett
patent: 2338903 (1944-01-01), Coberly
patent: 3170520 (1965-02-01), Arutunoff
patent: 3453963 (1969-07-01), Roeder
patent: 3517741 (1970-06-01), Roeder
patent: 3559740 (1971-02-01), Scaggs
patent: 3625288 (1971-12-01), Roeder
patent: 3703926 (1972-11-01), Roeder
patent: 3833060 (1974-09-01), Craggs et al.
patent: 3865516 (1975-02-01), Roeder
patent: 3894583 (1975-07-01), Morgan

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