Pressure equalizing safety valve for subterranean wells

Details Pressure equalizing safety valve for subterranean wells Pressure equalizing safety valve for subterranean wells

E - Fixed Constructions

21

B

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

Patent

CA 2264759

A subsurface safety valve (10) having a valve member with a pressure equalizing mechanism is provided. The valve member (26) includes a bore (48) therethrough for receiving an equalizing plug (46). A beam (52) is attached to the upper surface of the valve member for transferring downward motion of a flow tube (18) to unseat the equalizing plug (46), and thereby establish fluid communication through the valve member prior to the opening of the valve member. A retention member (50) is attached to the lower surface of the valve member to upwardly bias the equalizing plug within the plug bore of the valve member.

Cette invention se rapporte à une soupape de sûreté (10) conçue pour une utilisation souterraine et comportant un élément doté d'un mécanisme d'équilibrage des pressions. Ledit élément (26) de cette soupape comporte un alésage (48) traversant conçu pour recevoir un bouchon d'équilibrage (46). Une pièce de soutien (52), qui est attachée à la surface supérieure de l'élément de soupape, sert à transférer une force de déplacement vers le bas d'un tuyau (18) d'écoulement de manière à faire sortir de son siège le bouchon d'équilibrage (46), et à établir ainsi la communication fluidique à travers l'élément de la soupape avant l'ouverture de ce dernier. Un élément de retenue (50) est fixé à la surface inférieure de l'élément de soupape de manière à solliciter vers le haut le bouchon d'équilibrage à l'intérieur de l'alésage destiné au bouchon de l'élément de soupape.

Affiliated with

Also associated with

Rating

Pressure equalizing safety valve for subterranean wells does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure equalizing safety valve for subterranean wells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure equalizing safety valve for subterranean wells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1958618