Well apparatus actuating means having pressure accumulator means

Details Well apparatus actuating means having pressure accumulator means Well apparatus actuating means having pressure accumulator means

1980-04-07

1982-11-30

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166319, 166321, 166323, 166374, 166387, E21B 3410, E21B 4312

Patent

active

043611885

ABSTRACT:
Well apparatus, in which a pressured fluid accumulator is used to perform a function when the apparatus is disposed downhole in a well, such as to operate a valve to control fluid flow through a tubing string in which the apparatus is disposed. The accumulator is pressure-charged after the apparatus is run into the well by exposing the accumulator to casing pressure, so that the accumulator will thereafter be at a constant pressure. Performance of functions is accomplished by varying the casing pressure to above or below accumulator pressure, and using the pressure differential between the casing and accumulator to operate an actuator, such as a piston, to perform the function. The accumulator pressure may be made as desired by adjustment of the casing pressure at the time the accumulator is charged with pressure after the apparatus has been run into the well.

REFERENCES:
patent: 3045759 (1962-07-01), Garrett et al.
patent: 3827501 (1974-08-01), Johnson et al.

Affiliated with

Also associated with

Rating

Well apparatus actuating means having pressure accumulator means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well apparatus actuating means having pressure accumulator means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well apparatus actuating means having pressure accumulator means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-192475