Dual directional downhole overpressure valve

Details Dual directional downhole overpressure valve Dual directional downhole overpressure valve

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2721468

Dual directional downhole overpressure valve (1) comprising a valve housing (2) and where a first valve body (4) is forced with a first force against a first valve seat (8), and where a second valve body (6) is forced against a second valve seat (26) positioned in the first valve body (4) with a force smaller than the first force, the first force and the second force acting in opposite directions.

L'invention concerne une soupape de surpression bidirectionnelle de fond de trou (1) qui comprend un boîtier de soupape (2), et dans laquelle un premier corps de soupape (4) est forcé avec une première force contre un premier siège de soupape (8) et un second corps de soupape (6) est forcé contre un second siège de soupape (26) positionné dans le premier corps de soupape (4) avec une force inférieure à la première force, la première force et la seconde force agissant dans des directions opposées.

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