Subsurface safety valves and method and apparatus for their oper

Details Subsurface safety valves and method and apparatus for their oper Subsurface safety valves and method and apparatus for their oper

1991-05-13

1992-12-15

Neuder, William P.

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166386, 166324, E21B 3412

Patent

active

051708450

ABSTRACT:
Method and apparatus for pressurizing the top of the valve member of a subsurface safety to equalized pressure thereacross and assist in opening the valve. The apparatus includes a chamber filled with fluid under pressure which is admitted in to the space between the apparatus and a valve when landed in the valve to pressurized the valve. A spring loaded prong on the apparatus urges the valve member of the safety valve to open position. A latch is included which will bypass a top landing nipple and land in a second landing nipple. The subsurface safety valve is provided with means for filling its spring chamber with liquid with the valve closed. When the safety valve is open the spring chamber is isolated to protect the chamber from flow of fluids and solids.

REFERENCES:
patent: 4286661 (1981-09-01), Gazda
patent: 4478286 (1984-10-01), Fineberg
patent: 4674575 (1987-06-01), Guess
patent: 4676307 (1987-06-01), Pringle

Affiliated with

Also associated with

Rating

Subsurface safety valves and method and apparatus for their oper 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 safety valves and method and apparatus for their oper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subsurface safety valves and method and apparatus for their oper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2086818