Equalizer valve

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 34/10 (2006.01) E21B 21/10 (2006.01) E21B 34/14 (2006.01) F16K 31/122 (2006.01)

Patent

CA 2485973

A dirty fluid valve (10) for sealing high differential fluid pressures in a drilling environment and methods for using the valve (10) are disclosed. One embodiment of the valve (10) includes a seal cartridge (20) having several openings for directing a fluid path through the cartridge (20), a spring (30) connected at one end of the seal cartridge (20) and extending through the fluid path, and a seal member (24) connected to the other end of the spring (30). The seal (24) is actuatable between an open position and a closed position so that it covers one of the openings in the seal cartridge (20) when it is in the closed position, thereby sealing off the fluid flow through the seal cartridge (20) fluid path. The spring (30) provides a pre-loading force to the seal member (24) so that the seal member (24) always has sufficient contact with the surfaces surrounding the opening that the seal covers.

L'invention concerne une vanne pour fluide sale permettant l'étanchéification de hautes pressions de fluide différentielles dans un environnement de forage ainsi que des procédés d'utilisation d'une telle vanne. Dans un mode de réalisation, la vanne comprend une cartouche hermétique ayant plusieurs ouvertures permettant de diriger un trajet de fluide à travers la cartouche, un ressort relié à une extrémité de la cartouche hermétique et s'étendant à travers le trajet de fluide et un élément d'étanchéité relié à l'autre extrémité du ressort. Le joint peut bouger entre une position ouverte et une position fermée de manière à recouvrir une des ouvertures pratiquées dans la cartouche hermétique en position fermée, ce qui a pour effet d'éviter que le fluide ne s'écoule à travers le trajet de fluide de la cartouche hermétique. Le ressort exerce une force de précharge sur l'élément d'étanchéité de manière que ce dernier soit toujours suffisamment en contact avec les surfaces entourant l'ouverture que le joint d'étanchéité recouvre.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Equalizer valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1441637

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.