Method and apparatus for deploying a structure below the...

Details Method and apparatus for deploying a structure below the... Method and apparatus for deploying a structure below the...

F - Mech Eng,Light,Heat,Weapons

16

L

61/5.3

F16L 1/16 (2006.01)

Patent

CA 1156845

A B S T R A C T METHOD AND APPARATUS FOR DEPLOYING A STRUCTURE BELOW THE SURFACE OF A BODY OF WATER Flotation means, for example, buoys, are attached to an off- shore structure, such as a pipeline under construction. The flotation means move with the structure towards the sea bottom easing the descent. As the structure 1, 30 reaches a predetermined depth, the floating action of the flotation means 2, 35 on the structure is removed causing the structure 1, 30 to be heavier. To remove the floating action of the flotation means 2, the flotation means 2 may be constructed of prebuckled pipe segments 7, 8, which collapse at said predetermined water depth. In another embodiment of the invention the flotation means 35 are secured to the structure 30 by fastening means 38 comprising a prebuckled pipe segment which collapse at a predetermined water depth thereby releasing the flotation means 35 from the structure 30. Figures 1 and 3.

368816

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