Method and apparatus for installation of an offshore platform

Details Method and apparatus for installation of an offshore platform Method and apparatus for installation of an offshore platform

1985-01-31

1986-08-26

Husar, Cornelius J.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Floatable to site and supported by marine floor

405195, 405203, 405221, E02B 1708, E02D 2100, E02D 2500

Patent

active

046079823

ABSTRACT:
A method and apparatus are disclosed for use in the installation of a platform structure upon the upper elements of a previously-installed substructure. The platform structure is mounted on a barge positionable between the upper elements of the previously-installed substructure. The barge can be flooded and lowered a sufficient distance to allow leg elements of the platform structure to contact and mate with leg support elements of the substructure.
Impacts between the structures during the mating operation are absorbed by resilient neoprene pads carried by the leg supports. After the platform structure rests upon the leg supports, and the barge is removed, the platform structure can be lowered and leveled by draining a select volume of sand from the leg supports.

REFERENCES:
patent: 3859806 (1975-01-01), Guy et al.
patent: 4055264 (1977-10-01), Abbott
patent: 4121393 (1978-10-01), Renault et al.
patent: 4222683 (1980-09-01), Schaloske et al.
patent: 4252468 (1981-02-01), Blight
patent: 4405262 (1983-09-01), Nagashima
patent: 4436454 (1984-03-01), Ninet et al.
patent: 4453859 (1984-06-01), Sedillot et al.

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