Abstract: A device (10) for performing an under water operation on an at least partially submerged structure (40) or in the vicinity of the at least partially submerged structure includes a base (15) including at least one coupling (20) for coupling the device to the structure; at least a first articulated movable arm (30) directly or indirectly connected at a proximal end thereof (31) to the base, the first movable arm including a tool (60) connected to a distal end (29) of the first movable arm, where the tool is movable in a three dimensional working range about the base, where the base includes at least one rail (22A, 22B), and where the movable arm (30) includes a support carriage (32) which engages with the rail in order to allow the movable arm to move along the rail.

Abstract: The invention relates to a pipeline laying vessel (1) for laying a pipeline (2) at a seabed (3) and comprising a tower (4) comprising a firing line (5) along which in use the pipeline is laid and at least one work station (6) for connecting a pipe section (7) to a suspended pipeline and a method of laying pipeline at a sea bed with such a pipe laying vessel.

Abstract: The invention relates to a pipeline laying vessel (1) for laying a pipeline (2) at a seabed (3) and comprising a tower (4) comprising a firing line (5) along which in use the pipeline is laid and at least one work station (6) for connecting a pipe section (7) to a suspended pipeline and a method of laying pipeline at a sea bed with such a pipe laying vessel.

Abstract: The present invention relates to a pipeline-laying vessel (1) comprising: a hull assembly (8) for providing buoyancy to the pipeline-laying vessel (1); a tower assembly (2) extending upwardly from the hull assembly (8) for supporting a part of the pipeline (10) which is to be laid; a pipeline guiding assembly (60) provided at a position below the tower assembly (2) and configured to guide the pipeline (10). The pipeline guiding assembly (60) is coupled to the hull assembly (8) for transferring a force exerted by the pipeline (10) on the pipeline guiding assembly (60) to the hull assembly (8).