Artificial lift well apparatus

Details Artificial lift well apparatus Artificial lift well apparatus

1975-02-03

1976-02-10

Leppink, James A.

Wells

Screens

Porous material

138114, 166242, E21B 4300, E21B 1714

Patent

active

039372804

ABSTRACT:
Artificial lift apparatus for use in a well having an outer pipe string for flow of a first fluid and an inner pipe string for flow of a second fluid. The apparatus may comprise a tubular receiver for connection in the inner pipe string and having ports for providing communication between the inner and outer pipe string. The receiver may include an inner tubular member and a concentrically surrounding outer tubular member defining an annular passageway therebetween through which at least a portion of the first fluid flow may pass. The apparatus may also include a well tool adapted for movement through the inner pipe string for engagement with the receiver inner tubular member and being provided with at least one valve for controlling fluid flow between the inner and outer pipe strings through the ports.

REFERENCES:
patent: 3379259 (1968-04-01), Metler
patent: 3601320 (1971-08-01), DuPlessis
patent: 3827491 (1974-08-01), Dinning

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