Self-elevating offshore structure

Details Self-elevating offshore structure Self-elevating offshore structure

2006-12-12

2006-12-12

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

C405S209000, C405S198000, C405S199000

Reexamination Certificate

active

07147403

ABSTRACT:
A self-elevating offshore structure supports a deck for production operations at sea in the absence of an elevating hull. A non-buoyant deck is supported by braces and truss legs above wave action. The legs move in relation to the legs and the braces, elevating the deck and the braces supporting the deck. The offshore structure is transported to a deployment site by a buoyant vessel and then released from the vessel once the legs are embedded into the sea bottom.

REFERENCES:
patent: 3044269 (1962-07-01), Tourneau
patent: 4065934 (1978-01-01), Dysarz
patent: 4161376 (1979-07-01), Armstong
patent: 5855455 (1999-01-01), Williford et al.
patent: 6293734 (2001-09-01), Thomas et al.

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