Insert choke and control module therefor

Details Insert choke and control module therefor Insert choke and control module therefor

1988-11-16

1989-07-18

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166339, E21B 2300, E21B 3404, E21B 3416

Patent

active

048484725

ABSTRACT:
An insert choke for a sub-sea oil production module has a body and releasable latch for locking it into a housing of the production module, and a variable choke constriction within the body which can be adjusted by a screw-threaded stem co-operating with a screw threaded member which can be rotated manually, by an ROV, or by an associated choke control module.
The associated module, if used, fits over the insert choke and has releasable latches for locking it to the choke, and gearing and motor(s) for rotating the screw threaded member and adjusting the choke. Hydraulic cylinders and pistons actuate both the releasable latches of the choke within the choke housing and the latches for locking and unlocking the choke to and from the control module.

REFERENCES:
patent: 3071188 (1963-01-01), Raulins
patent: 3163223 (1964-12-01), Bauer et al.
patent: 3179176 (1965-04-01), Goepfent
patent: 3259191 (1966-07-01), McClintock et al.
patent: 4456070 (1984-06-01), Watkins

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