Downhole sub with hydraulically actuable sleeve valve

Details Downhole sub with hydraulically actuable sleeve valve Downhole sub with hydraulically actuable sleeve valve

E - Fixed Constructions

21

B

E21B 34/14 (2006.01) E21B 33/126 (2006.01) E21B 34/10 (2006.01)

Patent

CA 2719561

A method for opening a port through the wall of a ported sub including: providing a sub with a port through its tubular side wall; providing a hydraulically actuable valve to cover the port, the valve being actuable to move away from a position covering the port to thereby open the port; increasing pressure within the sub to create a pressure differential across the valve to move the valve toward the low pressure side, while the port remains closed by the valve; thereafter, reducing pressure within the sub to reduce the pressure differential; and driving the valve to move it away from a position covering the port.

L'invention porte sur un procédé pour ouvrir un orifice à travers la paroi d'un raccord double femelle porté, comprenant les opérations consistant à : procurer un raccord double femelle avec un orifice à travers sa paroi latérale tubulaire ; procurer une soupape actionnable de façon hydraulique pour recouvrir l'orifice, la soupape étant actionnable pour s'éloigner d'une position recouvrant l'orifice pour ainsi ouvrir l'orifice ; augmenter la pression à l'intérieur du raccord double femelle pour créer un différentiel de pression à travers la soupape pour déplacer la soupape vers le côté basse pression, tandis que l'orifice reste fermé par la soupape ; ensuite, réduire la pression à l'intérieur du raccord double femelle pour réduire le différentiel de pression ; et entraîner la soupape pour l'éloigner d'une position recouvrant l'orifice.

Affiliated with

Also associated with

Rating

Downhole sub with hydraulically actuable sleeve 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 Downhole sub with hydraulically actuable sleeve valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole sub with hydraulically actuable sleeve valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1581053