Method for constructing an ice platform

Heat exchange – With valve or movable deflector for heat exchange fluid flow – With by-pass of heat exchanger or heat exchanger section

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61 53, 62260, 165 45, E02D 522, E02B 1700

Patent

active

039902536

ABSTRACT:
A work platform for oil drilling, oil production, or other purposes is constructed in arctic waters by locating a natural ice island of suitable area and thickness, and moving it to the desired platform location. The ice island is anchored to the sea floor by installing at least one, but preferably a number of, generally cylindrical sheaths beneath it which extend from the island to the sea floor below. The sheaths are filled with water, and a thermosiphon is installed interiorly of the sheath. As the thermosiphon extracts heat from the water within the sheath, the water is converted to ice, and eventually the entire body of water within the sheath is frozen, thereby forming a column of ice which anchors the island to the sea floor in the desired location.

REFERENCES:
patent: 3732918 (1973-05-01), Culbertson
patent: 3750412 (1973-08-01), Fitch et al.
patent: 3798912 (1974-03-01), Best et al.

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