Large bore retrievable well safety valve

Details Large bore retrievable well safety valve Large bore retrievable well safety valve

1988-10-11

1989-08-08

Massie, IV, Jerome W.

Wells

Valves, closures or changeable restrictors

Fluid operated

166166, 166332, 251 62, E21B 3410

Patent

active

048543870

ABSTRACT:
A retrievable well subsurface safety valve having a valve seat and an arculate valve closure member on the bottom of the housing for increasing fluid flow through the bore of the housing. A nose, separate from the housing, is adapted to be connected in the well conduit below the bottom of the housing for protecting the valve closure member. The subsurface safety valve may be rotationally oriented to connect a flow control passageway to a port in the well conduit. A landing nipple includes a port for receiving hydraulic control fluid, a latching recess for latching the valve housing, and a latching recess for latching the nose, and orientation mechanism for rotating the safety valve relative to the port.

REFERENCES:
patent: 4161219 (1979-07-01), Pringle
patent: 4252197 (1981-02-01), Pringle
patent: 4437522 (1984-03-01), Krause, Jr. et al.
patent: 4531587 (1985-07-01), Fineberg
patent: 4585067 (1986-04-01), Blizzard et al.
patent: 4597445 (1986-07-01), Knox
patent: 4660646 (1987-04-01), Blizzard
patent: 4691776 (1987-09-01), Pringle

Affiliated with

Also associated with

Rating

Large bore retrievable well safety 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 Large bore retrievable well safety valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large bore retrievable well safety valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-898915