Method and apparatus for a subsea master valve

Details Method and apparatus for a subsea master valve Method and apparatus for a subsea master valve

E - Fixed Constructions

21

B

166/44

E21B 29/00 (2006.01) E21B 29/08 (2006.01) E21B 34/04 (2006.01) F16K 5/06 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1053574

ABSTRACT OF THE DISCLOSURE A control valve apparatus adapted to be positioned within a subsea blowout preventer stack for controlling the flow of fluid from an offshore well includes a ball valve element provided with the capability of cutting coil tubing typically employed in well workover and completion operations. The ball element has a cutting edge that coacts with the valve seat to shear the tubing, and a relief slot that receives the tubing during cutting to prevent the tubing from being placed in double shear. Hydraulically operable means is provided to assist in closure of the ball valve element and consequent cutting of tubing extending into the well, in case of emergency. -1-

273235

Affiliated with

Also associated with

Rating

Method and apparatus for a subsea master 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 Method and apparatus for a subsea master valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for a subsea master valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-54568