Sistema e metodo di trasferimento di tubi di pipeline, in particolare da una nave porta-tubi a una nave posa-pipeline o a una struttura offshore

A system (1) for the offshore crane transfer of pipe joints (2) from a pipe carrier vessel (3) to a pipe laying vessel (4) comprises a pipe carrier vessel (3) having a pipe transfer station (5), a pipelay vessel (4) having a pipe landing station (6), a boom crane (7) positioned on the pipelay vessel (4) with a spreader bar (13) hangingly connected to a crane hook (11), wherein the spreader bar (13) comprises electrically controlled pipe connectors (26) to connect a pipe joint (2) to the spreader bar (13), motor driven flywheels (32) rotating about dedicated flywheel axes (33), and an electrically controlled flywheel adjusting system (34) for adjusting an orientation of the flywheel axis (33) with respect to the spreader bar (13) to generate and apply a yaw rotation moment about a vertical yaw rotation axis (17) to the spreader bar (13).