An apparatus and method transports, launches, and recovers an unmanned undersea vehicle (UUV) on a boat. A pair of support rails secures the UUV to the boat during the transport across a body of water on the boat. The support rails support the UUV in sliding movement along the support rails during the launch from the boat into the body of water and during the recovery from the body of water onto the boat. A ramp is deployed that extends the support rails into the body of water through a stern of the boat. The ramp includes a pair of alignment rails for aligning the UUV with the support rails during the recovery. A winch pulls the UUV out of the body of water during the recovery, with the winch pulling the UUV into the alignment rails and then onto the support rails in the boat.

An apparatus and method transports, launches, and recovers an unmanned undersea vehicle (UUV) on a boat. A pair of support rails secures the UUV to the boat during the transport across a body of water on the boat. The support rails support the UUV in sliding movement along the support rails during the launch from the boat into the body of water and during the recovery from the body of water onto the boat. A ramp is deployed that extends the support rails into the body of water through a stern of the boat. The ramp includes a pair of alignment rails for aligning the UUV with the support rails during the recovery. A winch pulls the UUV out of the body of water during the recovery, with the winch pulling the UUV into the alignment rails and then onto the support rails in the boat.

An apparatus and method transports, launches, and recovers an unmanned undersea vehicle (UUV) on a boat. A pair of support rails secures the UUV to the boat during the transport across a body of water on the boat. The support rails support the UUV in sliding movement along the support rails during the launch from the boat into the body of water and during the recovery from the body of water onto the boat. A ramp is deployed that extends the support rails into the body of water through a stern of the boat. The ramp includes a pair of alignment rails for aligning the UUV with the support rails during the recovery. A winch pulls the UUV out of the body of water during the recovery, with the winch pulling the UUV into the alignment rails and then onto the support rails in the boat.

An apparatus and method transports, launches, and recovers an unmanned undersea vehicle (UUV) on a boat. A pair of support rails secures the UUV to the boat during the transport across a body of water on the boat. The support rails support the UUV in sliding movement along the support rails during the launch from the boat into the body of water and during the recovery from the body of water onto the boat. A ramp is deployed that extends the support rails into the body of water through a stern of the boat. The ramp includes a pair of alignment rails for aligning the UUV with the support rails during the recovery. A winch pulls the UUV out of the body of water during the recovery, with the winch pulling the UUV into the alignment rails and then onto the support rails in the boat.

A system for release of mooring loading and unloading lines between a loading and unloading station at sea and a vessel comprises a yoke with mooring tethers, for connection between the yoke and the vessel. A method for quick release comprises disconnecting the lines, connecting them to a winch arrangement; lowering line connectors for parking on a parking structure on the yoke if the swivel is above sea level, or on the sea floor if the swivel is close to the sea floor; lowering the yoke by the winch arrangement after the line connectors are parked on the parking structure if the swivel is above sea level, lowering the yoke with the line connectors if the swivel is close to the sea floor; stopping the winch arrangement when the yoke has landed on the sea floor, and further lowering the mooring tethers on the sea floor by moving the vessel.

A system for release of mooring loading and unloading lines between a loading and unloading station at sea and a vessel comprises a yoke with mooring tethers, for connection between the yoke and the vessel. A method for quick release comprises disconnecting the lines, connecting them to a winch arrangement; lowering line connectors for parking on a parking structure on the yoke if the swivel is above sea level, or on the sea floor if the swivel is close to the sea floor; lowering the yoke by the winch arrangement after the line connectors are parked on the parking structure if the swivel is above sea level, lowering the yoke with the line connectors if the swivel is close to the sea floor; stopping the winch arrangement when the yoke has landed on the sea floor, and further lowering the mooring tethers on the sea floor by moving the vessel.

A cable-direction-adaptive ROV winch applied to non-DP-equipped motherships, includes a non-DP-equipped mothership, an A-shaped support and a winch cable-drawing roller provided on the non-DP-equipped mothership, and an underwater vehicle. A pulley is rotatably connected to the A-shaped support, the underwater vehicle is connected to an umbilical cable, the umbilical cable passes around the pulley to be connected to the winch cable-drawing roller, and a locating unit for guiding the umbilical cable is provided on the non-DP-equipped mothership. The A-shaped support is provided with a rod. The pulley includes a sliding section and a rotating section, and the sliding section is annular and slides on the rod along a direction of the rod. The rod has a groove, and a bulge portion is formed on the sliding section. The rotating section is rotatably connected to an outer circle of the sliding section via a shaft bearing.

A flexible deployment system is used to deploy subsea/downhole well equipment or modules from a multi-purpose vessel without requiring a moon pool and a derrick or tower. The deployment system may include the vessel and a deployment frame disposed on the vessel. The deployment frame includes a protruding section extending as a cantilever beyond an external edge of the vessel, and the protruding section includes an aperture formed therein to facilitate construction of the well equipment or modules through the protruding section. The deployment system also includes an actuation assembly coupled to the protruding section to selectively transition the protruding section to a collapsed, split, or retracted orientation out of a deployment path of the well equipment or modules. The system allows for controlled deployment of well equipment or modules including at least a string of downhole tools or tubulars coupled end to end from the side of the vessel in a single trip.

A flexible deployment system is used to deploy subsea/downhole well equipment or modules from a multi-purpose vessel without requiring a moon pool and a derrick or tower. The deployment system may include the vessel and a deployment frame disposed on the vessel. The deployment frame includes a protruding section extending as a cantilever beyond an external edge of the vessel, and the protruding section includes an aperture formed therein to facilitate construction of the well equipment or modules through the protruding section. The deployment system also includes an actuation assembly coupled to the protruding section to selectively transition the protruding section to a collapsed, split, or retracted orientation out of a deployment path of the well equipment or modules. The system allows for controlled deployment of well equipment or modules including at least a string of downhole tools or tubulars coupled end to end from the side of the vessel in a single trip.

The present invention relates to a method for installing a wind turbine or other tall structure at a target location at sea, the method comprising: providing an installation vessel comprising at least one crane, wherein the crane comprises a lower boom part, a right boom part, and a left boom part, wherein the right boom part and the left boom part are connected to an upper portion of the lower boom part and extend from said upper portion, wherein a space is present between the right and left boom part, lifting a tall structure part, in particular the nacelle assembly, with the crane, wherein in top view the tall structure part is supported at least partially between the right and left boom part by one or more hoist lines extending from the right and left boom part to the tall structure part.