Tension base for tension leg platform

Details Tension base for tension leg platform Tension base for tension leg platform

1995-11-21

1998-01-13

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Tension leg platform

405227, 405224, B63B 3544, E02B 1700

Patent

active

057071780

ABSTRACT:
An offshore platform for supporting a platform deck in deep water. A buoyant base is submerged below the water surface and is retained with base tendons to a foundation on the sea floor. The buoyant base is attachable to the mooring tendons of a tension leg vessel positioned above the buoyant base. The buoyant base can be selectively ballasted to control the tension in the base tendons. Additional buoyant bases and connecting tendons can extend the depth of the total structure beyond depths possible with conventional tension leg structure technology. Mooring lines can be connected between the buoyant base and the sea floor to limit lateral movement of the buoyant base. The buoyant base esentially creates a submerged foundation which reduces the required length of a conventional tension leg platform. The tension leg platform can be detached from the buoyant base and moved to another location.

REFERENCES:
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patent: 3540396 (1970-11-01), Horton
patent: 3550385 (1970-12-01), Lowd et al.
patent: 3927535 (1975-12-01), Giblon
patent: 3982401 (1976-09-01), Loggins
patent: 4512886 (1985-04-01), Hicks et al.
patent: 4674918 (1987-06-01), Kalpins
patent: 4702648 (1987-10-01), Stageboe et al.
patent: 5046896 (1991-09-01), Cole

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