Tubing hanger with a preloaded lockdown

Details Tubing hanger with a preloaded lockdown Tubing hanger with a preloaded lockdown

1992-04-10

1993-09-28

Dang, Hoang C.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166208, E21B 33043

Patent

active

052479978

ABSTRACT:
An improved subsea tubing hanger having a body with an external shoulder for landing on a seat within a subsea wellhead housing, locking ring carried on the hanger to engage an interior recess of the wellhead housing with an actuator ring for setting the locking ring. A preloading mechanism includes a biconical radially movable split ring hydraulically actuated by an axially movable conical ring cooperates with the locking ring to prevent any movement of the tubing hanger when engaged.

REFERENCES:
patent: 3489213 (1970-01-01), Hutchison
patent: 3543847 (1970-12-01), Haeber
patent: 3693714 (1972-09-01), Baugh
patent: 4067062 (1978-01-01), Baugh
patent: 4067388 (1978-01-01), Mouret et al.
patent: 4691780 (1987-09-01), Galle, Jr. et al.
patent: 5060724 (1991-10-01), Brammer et al.
patent: 5076356 (1991-12-01), Reimert
patent: 5110144 (1992-05-01), Burton et al.
patent: 5145006 (1992-09-01), June
patent: 5174376 (1992-12-01), Singletham

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