Subsea wellhead production apparatus with a retrievable subsea c

Details Subsea wellhead production apparatus with a retrievable subsea c Subsea wellhead production apparatus with a retrievable subsea c

1984-04-02

1986-05-20

Leppink, James A.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166344, 137798, 251367, E21B 4301

Patent

active

045894930

ABSTRACT:
A subsea wellhead production apparatus including a retrievable subsea choke having a body having an inlet, an outlet extending therein from its lower surface and a collet connecting flange surrounding the lower end of said body, a passage in said body defining communication between said inlet and said outlet, a valve seat in said body surrounding communication between said inlet and said outlet, a valve member movably mounted in said body to coact with said valve seat to control flow through said communication passage an actuator for moving said valve member toward and away from said valve seat, a flowline body having first and second passages opening on a surface of the body with a collet connecting flange surrounding said surface. An orienting key on said choke body and a muleshoe on said flowline body to orient and align said first passage with said inlet and said second passage with said outlet, and a remotely actuated collet connector surrounding and supported on said flowline body and having collet locking elements in position to engage the collet connecting flange.

REFERENCES:
patent: 2276883 (1942-03-01), Schon et al.
patent: 3688840 (1972-09-01), Curington et al.
patent: 3820558 (1974-06-01), Mueller
patent: 3957079 (1976-05-01), Whiteman
patent: 4046191 (1977-09-01), Neath
patent: 4210208 (1980-07-01), Shanks
patent: 4457489 (1984-07-01), Gilmore

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