Downhole valve

Details Downhole valve Downhole valve

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 23/00 (2006.01) E21B 34/10 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2389621

The invention is a downhole valve (100) that includes a body (12), a flow tube assembly (102) that includes an upper tube member (108) and a lower tube member (110), and a flapper valve (10). The flapper valve (10) is pivotally attached to the body (12) and is positioned between the upper tube member (108) and the lower tube member (110) when the flapper valve (10) is in a closed position that blocks fluid flow in an internal bore of the body (12). The flapper valve (10) is moved from the closed position to an open position in response to an upward movement of the upper tube member (108) and the lower tube member (110). When the flapper valve (10) pivots to the open position, the lower tube member (110) moves adjacent to and forms a seal with the upper tube member (108), forming an unobstructed internal bore.

L'invention concerne une soupape de fond (100) comprenant un corps (12), un ensemble de tubes d'écoulement (102) comportant un tube supérieur (108) et un tube inférieur (110) ainsi qu'un clapet à battant (10). Ce clapet (10) est fixé, de façon à pouvoir pivoter, au corps (12) et est placé entre le tube supérieur (108) et le tube inférieur (110) lorsque le clapet à battant (10) est dans une position fermée bloquant le débit du fluide dans un orifice interne du corps (12). Le clapet à battant (10) passe d'une position fermée à une position ouverte en réaction à un mouvement vers le haut du tube supérieur (108) et du tube inférieur (110). Lorsque le clapet à battant (10) pivote dans une position ouverte, le tube inférieur (110) se déplace à côté du tube supérieur et est scellé au tube supérieur (108), formant ainsi un orifice interne dégagé.

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