Marine pipelay system and method

Details Marine pipelay system and method Marine pipelay system and method

2011-02-01

2011-02-01

Singh, Sunil (Department: 3672)

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

C405S169000

Reexamination Certificate

active

07878735

ABSTRACT:
The marine pipelaying system for vertical or near vertical laying of an offshore pipeline (20) includes a main supporting structure (5); a pipe connecting station (30), wherein a pipe section (21) is connected to an uppermost end (20a) of a previously launched pipeline; a static clamp (35) adapted for releasably securing the uppermost end of the previously launched pipeline, wherein the static clamp is adapted to support the weight of the<->previously launched pipeline; a mobile clamp (40) adapted for releasably securing the previously launched pipeline at a position below the static clamp, wherein the mobile clamp is adapted to support the weight of the offshore pipeline as the offshore pipeline is released from the static clamp; and a mobile clamp hoist (10) connected to the mobile clamp.

REFERENCES:
patent: 3797570 (1974-03-01), Leutwyler
patent: 4068490 (1978-01-01), Jegousse et al.
patent: 4433938 (1984-02-01), Boon
patent: 5464307 (1995-11-01), Wilkins
patent: 6352388 (2002-03-01), Seguin
patent: 2003/0231931 (2003-12-01), Moszkowski et al.
patent: 2303897 (1997-03-01), None

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