Guidelineless system for riser entry/reentry that permits quick

Details Guidelineless system for riser entry/reentry that permits quick Guidelineless system for riser entry/reentry that permits quick

1982-01-18

1983-08-23

Pate, III, William F.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

E21B 7128

Patent

active

043998720

ABSTRACT:
A guidelineless riser entry/reentry system which permits a safe and quick release of a riser column from a subsea installation. The system includes two guide funnels mounted on opposite sides of the subsea installation at the upper end thereof for the purpose of engaging respective telescopic posts mounted at the lower end of the riser column. With the posts in an extended position, the riser may be appropriately maneuvered to position the posts in their respective guide funnels. In this way, the riser is properly positioned on and orientated with respect to the subsea installation. The riser may then be disconnectably connected to the subsea installation and the posts moved into a retracted position so that the riser may be rapidly removed from the subsea installation.

REFERENCES:
patent: 3534984 (1970-10-01), Shney
patent: 3602301 (1971-08-01), James
patent: 4031544 (1977-06-01), Lapertinn
patent: 4080025 (1978-03-01), Garnier et al.
patent: 4167215 (1979-09-01), Thorne

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