Hydraulically actuated control fluid communication nipple

Details Hydraulically actuated control fluid communication nipple Hydraulically actuated control fluid communication nipple

1984-06-25

1986-01-28

Leppink, James A.

Wells

Valves, closures or changeable restrictors

Destructible element

166 72, 166242, 166318, 166323, 166334, E21B 3410

Patent

active

045665400

ABSTRACT:
A hydraulic actuated communication nipple for switching control fluid from one location to a second location in a well tool. A body having a longitudinal bore includes a control fluid passageway adapted to be connected to the well surface. A vertical moving sleeve in the body opens communication from the fluid passageway to the bore and is connected to a hydraulic piston in the fluid passageway which includes a bypass opening normally passing fluid through the passageway. A ball dropped down the control line seats on the piston, closes the fluid passage, moves the sleeve, and opens the fluid passageway to the bore. The piston also actuates a vertical moving plug to seal off the outlet with a metal-to-metal seal. A dual communication nipple may be provided which are internally connected by a line to move the fluid displaced by a piston.

REFERENCES:
patent: 3799258 (1974-03-01), Tausch
patent: 3882935 (1975-05-01), Calhoun
patent: 4119146 (1978-10-01), Taylor
patent: 4249599 (1981-02-01), Krause
patent: 4411316 (1983-10-01), Carmody
patent: 4460046 (1984-07-01), Pringle

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