Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent
1996-02-21
1998-03-03
Graysay, Tamara L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
With anchoring of structure to marine floor
4051951, 114264, B63B 3544
Patent
active
057227977
ABSTRACT:
A floating caisson for offshore drilling and production that includes means for increasing the natural period of the caisson and reducing heave, pitch, and roll without increasing the overall length of the caisson. The caisson is self buoyant by means of buoyancy tanks and is held in position by mooring lines. The caisson has a center well through which drilling and/or production risers pass. One or more plates extend radially from the caisson below the water surface. The plates provide additional mass and resistance to environmentally induced motions and thus increase the natural period of the caisson beyond the periods of maximum wave energy. This allows the caisson to be designed with a shallower draft than a caisson without the plates that would normally be used in deep water.
REFERENCES:
patent: 3191388 (1965-06-01), Ludwig
patent: 3224401 (1965-12-01), Kobys
patent: 3510892 (1970-05-01), Monnereau et al.
patent: 3540396 (1970-11-01), Horton
patent: 3548602 (1970-12-01), Monnereau
patent: 3648638 (1972-03-01), Blenkarn
patent: 4626137 (1986-12-01), Willemsz
patent: 4906139 (1990-03-01), Chiu et al.
patent: 4987896 (1991-01-01), Yamashita et al.
Deep Oil Technology, Inc.
Edwards Robert J.
Graysay Tamara L.
Lagman Frederick L.
LaHaye D. Neil
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