Mat supported offshore structure

Details Mat supported offshore structure Mat supported offshore structure

2006-02-21

2006-02-21

Singh, Sunil (Department: 3673)

Hydraulic and earth engineering

Marine structure or fabrication thereof

Floatable to site and supported by marine floor

C405S205000, C405S203000, C405S196000, C114S265000

Reexamination Certificate

active

07001108

ABSTRACT:
A bottom-supported jack-up rig has a hollow ring mat with a central opening for accommodating a lower portion of a hull nested therein when the rig is in transit. The ring mat has a predetermined surface footprint sufficient to provide stability to the rig when embedded in the sea bottom. The mat buoyancy helps support the hull and the legs in a floating position when the rig is in transit, while allowing lowering of the mat to the sea bottom without assistance of a ballasting/de-ballasting means.

REFERENCES:
patent: 3433024 (1969-03-01), Diamond et al.
patent: 3673974 (1972-07-01), Harper
patent: 4080796 (1978-03-01), Edling et al.
patent: 5190410 (1993-03-01), Nunley

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