Subsurface well safety valve with light weight components

Details Subsurface well safety valve with light weight components Subsurface well safety valve with light weight components

1989-10-02

1990-12-18

Dang, Hoang C.

Wells

Valves, closures or changeable restrictors

Fluid operated

166323, 166332, 251368, E21B 3410

Patent

active

049779575

ABSTRACT:
A subsurface well safety valve having a housing with a valve seat positioned in the housing and a valve closure member movable between open and closed positions. A flow tube is telescopically movable in the housing for controlling the movement of the valve closure member, a biasing member in the housing acts on the flow tube moving the valve to a closed position, and a hydraulic piston and cylinder assembly actuates the flow tube. The flow tube and/or the valve closure member are made of a light weight material, and allow the use of smaller and less expensive springs. The low weight flow tube reduces the required output of the biasing member and/or allows the valve to be set deeper.

REFERENCES:
patent: 2591174 (1952-04-01), Martin
patent: 3035642 (1962-05-01), Page
patent: 3095900 (1963-07-01), Newhall
patent: 4161219 (1979-07-01), Pringle
patent: 4254832 (1981-03-01), Patton et al.
patent: 4716968 (1988-01-01), Pringle

Affiliated with

Also associated with

Rating

Subsurface well safety valve with light weight components does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1420537