Multiplexed electrohydraulic type of control system for use in u

Details Multiplexed electrohydraulic type of control system for use in u Multiplexed electrohydraulic type of control system for use in u

1992-11-02

1994-03-22

Bui, Thuy M.

Wells

Submerged well

Wellhead

E21B 4300

Patent

active

052955478

ABSTRACT:
This invention concerns a multiplexed electrohydraulic kind of control system consisting of ten undersea control modules, (24), arranged and installed one for each local Xmas tree (14) and satellite Xmas module (18). System links up with a stationary production system by two hydraulic umbilicals, (42), and one electric umbilical, (44), this latter through an electric distribution module, (26), while connection of jumper, (84) of undersea control module, (24), and to electric distribution module, (26) is done by a remotely controlled vehicle (R.O.V.), (30).

REFERENCES:
patent: 4378848 (1983-04-01), Milberger
patent: 4848475 (1989-07-01), Dean et al.
patent: 5025865 (1991-06-01), Caldwell et al.

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