Marine structure
AssigneeA/S Hoyer-Ellefsen
InventorKjell Vigander
Life of this patent
Estimating the term…
Abstract
An offshore structure is provided for handling cryogenic fluids such as liquefied natural gas. The structure comprises a lower section of concrete and an upper section which projects up from the lower section above the sea level to support a deck superstructure. The lower section is formed of a plurality of cells and at least one of the cells houses an insulated tank for the storage of low temperature fluids. The tank or tanks are completely submerged when in operation and are rigidly supported by the associated cell. Each tank comprises a primary and secondary barrier with insulation associated therewith and the tank(s) communicates with the deck superstructure through an access tunnel system.
Claims8
An offshore structure for handling of cryogenic fluids, such as liquefied natural gas, comprising a lower section of concrete and an upper section projecting up from the lower section above the sea level to support a deck superstructure, the lower section being formed of a plurality of cells, at least one of said cells housing an insulated tank for storage of low temperature fluids, the insulated tank housed by said at least one cell being completely submerged in operation and being rigidly supported by said at least one cell, said storage tank also comprising at least a primary and secondary barrier with insulation associated therewith, and said offshore structure further comprising an access tunnel system providing communication between the storage tank and the deck superstructure.
Dependencies are inferred from the claim text.