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AssigneeTechnip Energies France
InventorsCyrille DECHIRON, Patrice BASTET
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Floating intervention vessel intended to temporarily moor itself on an offshore wind turbine platform, associated intervention assembly and facility The invention relates to a vessel comprising a float (80) and a wind turbine intervention assembly, carried by the float (80) The float (80) comprises a buoyant body (86) and a fastening baseplate (88) protruding from the buoyant body (86) along a fastening axis (A-A′) on a lower surface of the offshore wind turbine platform. The buoyant body (86) defines a ballast-receiving volume, the vessel comprising a ballast controller configured to control the amount of ballast received in the ballast-receiving volume to raise an upper contact surface (94) of the baseplate (88) to place it in contact with a lower surface of the offshore wind turbine platform, the float (80) being monohull.
An offshore intervention floating vessel (50), intended to temporarily moor itself on an offshore wind turbine platform (14) to perform an installation and/or maintenance intervention on a wind turbine (20), the floating vessel (50) comprising:
The floating vessel (50) according to any of the preceding claims, wherein the lifting device (100) comprises at least one lifting and/or handling unit (104) selected from an intervention crane (112), a forklift (110), a wind turbine blade gripper (111), and/or a motion compensation device (113).
The floating vessel (50) according to any of the preceding claims, wherein the lifting device (100) comprises a fixed mast (104) formed from a lattice of beams (108) assembled together, the mast (104) protruding vertically above the buoyant body (86).
The floating vessel (50) according to any of the preceding claims, wherein the float (80) comprises at least one propeller thruster (92) arranged below the buoyant body (86) and/or under the baseplate (88).
The floating vessel (50) according to any of the preceding claims, wherein each horizontal section of the buoyant body (86) has a maximum axial dimension, taken along the fastening axis (A-A′), less than 0.75 times the maximum transverse dimension of the horizontal section, preferably less than 0.50 times the maximum transverse dimension of the horizontal surface, the maximum transverse dimension being taken perpendicular to the fastening axis (A-A′).
An offshore intervention assembly (10), comprising a ship (52) having a hull (54) defining at least one storage space for wind turbine equipment, and a floating vessel (50) according to any of the preceding claims, wherein the floating vessel (50) is movable relative to the ship (52) between a transport position of the floating vessel (50) to the offshore wind turbine platform (14), wherein the baseplate (88) of the float (80) is held secured against a lower surface (68) of the hull (54) and an intervention position, wherein the floating vessel is disposed away from the ship (52) to intervene on an offshore wind turbine platform (14).
Dependencies are inferred from the claim text.