A mooring buoy

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 22/04 (2006.01) B63B 22/00 (2006.01)

Patent

CA 2440248

In a method for releasing a mooring buoy (3) from a float- ing structure (1) the buoy is lowered by means of a chain (3) to a fist equilibrium position where the net buoyancy of the buoy is balanced by the weight of mooring lines (4) and risers (5). The chain (3) is lowered further by a sec- ond winch line (6) while the chain moves through a guide in the buoy until an upper stopper on the chain abuts the buoy. By further paying out of the second winch line (6), the weight of the chain is gradually transferred to the buoy and pulls it down to a second equilibrium position at a substantial depth safe from e.g. drifting icebergs. The second winch line (6) is disconnected from the chain and retrieved to the floating structure (1).

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