Device for restraining lateral movement of subsea equipment

Details Device for restraining lateral movement of subsea equipment Device for restraining lateral movement of subsea equipment

1977-06-06

1979-01-30

Blix, Trygve M.

Ships

Floating platform

166341, 175 5, 214 1P, 267140, B63B 3544

Patent

active

041366336

ABSTRACT:
A device is disclosed for restraining lateral movement of large underwater equipment, such as a blowout preventer (BOP) stack for use on subsea wells, when retrieving or running such equipment through the well of a floating vessel. A plurality of rollers are angularly positioned about the well, each roller being capable of rolling longitudinally (vertically) along the equipment. Each roller is connected to shock absorbers for cushioning lateral movement of the equipment and to a piston cylinder for moving each roller toward and away from the equipment.

REFERENCES:
patent: 2952979 (1960-09-01), Rolando
patent: 3528497 (1970-09-01), Lehman
patent: 3895677 (1975-07-01), Bokenkamp

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