Protection means for a flexible riser

Details Protection means for a flexible riser Protection means for a flexible riser

2006-10-03

2006-10-03

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

C405S224300, C405S216000, C166S359000, C166S367000

Reexamination Certificate

active

07114885

ABSTRACT:
The invention relates to flexible risers for transfer of hydrocarbons between a sea bed installation and a vessel (10) floating at the sea surface. The riser (18) is provided with means (20) for protecting the riser (18) from impacts. The protection means (20) covers at least the upper part of the riser (18) and is retractable to an inactive position. When in operation, the riser protection means (20) is either suspended from the vessel (10) or from a submerged turret buoy, forming part of a mooring system for the vessel (10).

REFERENCES:
patent: 3612176 (1971-10-01), Bauer et al.
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patent: 4403658 (1983-09-01), Watkins
patent: 4505615 (1985-03-01), Evans
patent: 4505618 (1985-03-01), Yashima
patent: 4624318 (1986-11-01), Aagaard
patent: 2066758 (1981-07-01), None
patent: 2320268 (1998-06-01), None
patent: 308027 (1994-10-01), None

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