Pressure valve assembly for use in gas-lift producing oil-wells

Details Pressure valve assembly for use in gas-lift producing oil-wells Pressure valve assembly for use in gas-lift producing oil-wells

1994-01-26

1995-11-14

Schwadron, Martin P.

Fluid handling

Diverse fluid containing pressure systems

Gas lift valves for wells

166319, F04F 108

Patent

active

054657474

ABSTRACT:
A pressure valve assembly for use in gas-lift producing oil-wells includes a cylindrical body, a first pressure chamber including bellows located in the body, a second pressure chamber in the body having a first port for communication with gas pressure in a lining or casing, a second port for communicating the second chamber with a pipe in the lining, a valve stem connected to the bellows for movement in the second chamber and a gate valve assembly connected to the stem in the second chamber for controlling the gas flow between the first and second ports.

REFERENCES:
patent: 989441 (1911-04-01), Suits et al.
patent: 3028815 (1962-04-01), Canalizo
patent: 3131644 (1964-05-01), Vincent
patent: 3363581 (1968-01-01), Kelley et al.
patent: 4512155 (1985-04-01), Sheinbaum

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