Abstract: A cutting system is used for cutting a hollow cylindrical support beam which forms part of a support structure of a sea platform. The cutting system comprises a fixating device to fixate the cutting system in an operation position around an outer wall of the support beam, and a drilling device to drill a series of through holes in the outer wall and around the support beam. The drilling device is movable along a drill track and around the support beam by a drill driver.

Abstract: The present invention relates to a lifting device for lifting an upper part of a sea platform, the sea platform comprising a support structure and a top side, the lifting device being constructed to be positioned on a lifting vessel, the lifting device comprising: a base frame constructed to rest on the lifting vessel, at least one console frame connected to the base frame via a flexible connection system, a suspension system connected to the console frame and comprising a leg connector, wherein the suspension system is constructed to allow freedom of movement of the leg connector relative to the console frame, wherein the flexible connection system forms a flexible connection between the console frame and the base frame and allows a predetermined movement of the console frame.

Abstract: A cutting system is used for cutting a hollow cylindrical support beam which forms part of a support structure of a sea platform. The cutting system comprises a fixating device to fixate the cutting system in an operation position around an outer wall of the support beam, and a drilling device to drill a series of through holes in the outer wall and around the support beam. The drilling device is movable along a drill track and around the support beam by a drill driver.

Abstract: The present invention relates to a lifting device for lifting an upper part of a sea platform, the sea platform comprising a support structure and a top side, the lifting device being constructed to be positioned on a lifting vessel, the lifting device comprising: a base frame constructed to rest on the lifting vessel, at least one console frame connected to the base frame via a flexible connection system, a suspension system connected to the console frame and comprising a leg connector, wherein the suspension system is constructed to allow freedom of movement of the leg connector relative to the console frame, wherein the flexible connection system forms a flexible connection between the console frame and the base frame and allows a predetermined movement of the console frame.

Abstract: The invention provides a lifting device (1) for lifting a leg of at least one part of a sea platform comprising a support structure and a top side, wherein the lifting device comprises: a base structure (2) to be mounted on a vessel; a gripping device (3) to grip the leg, wherein the gripping device is movably supported with respect to the base structure; a support device (4) mounted on the base structure, and a lifting beam (5), wherein a first end of the lifting beam is configured to be supported at a support location of the support device and wherein a second end of the lifting beam opposite to the first end is configured to be connected to the gripping device.

Abstract: The invention provides a lifting device (1) for lifting a leg of at least one part of a sea platform comprising a support structure and a top side, wherein the lifting device comprises: a base structure (2) to be mounted on a vessel; a gripping device (3) to grip the leg, wherein the gripping device is movably supported with respect to the base structure; a support device (4) mounted on the base structure, and a lifting beam (5), wherein a first end of the lifting beam is configured to be supported at a support location of the support device and wherein a second end of the lifting beam opposite to the first end is configured to be connected to the gripping device.

Abstract: A stinger (1) for a pipeline laying vessel, the stinger includes at least one track (3) which in use at least partly surrounds a firing line along which the pipeline (5) is laid, and at least one pipeline support (6) for supporting the pipeline, which pipeline support is movable along said track.

Abstract: A pipeline laying vessel (1) for laying a pipeline (2) on a seabed, said vessel (1) comprising a J-lay system (4) defining a firing line (5) along which the pipeline (2) is laid, the J-lay system (4) comprising an alignment device (6) for aligning a pipe section (7) with the pipeline (2) suspended from the J-lay system (4) with a sufficient level of accuracy to allow the pipe section (7) to be welded to the pipeline (2), the alignment device (6) being constructed to maintain the alignment during at least a part of the welding operation of the pipe section (7) to the pipeline (2), wherein the alignment device (6) is movable between a first position (10) in the firing line (5) and a second position (11) outside the firing line (5), and the alignment device (6) is constructed to engage a pipe section (7) in the second position (11) and to be moved into the first position (10) together with the engaged pipe section (7).

Abstract: A J-lay system constructed to be positioned on board a pipeline-laying vessel, comprising a fixed pipeline support (12) and a movable pipeline support (12) configured for supporting a pipeline (10) which is suspended form the pipeline-laying vessel, —the movable pipeline support (12) comprising: —at least a first movable support member (20A) configured for engaging a first collar (16A) on the pipeline (10), —at least a second movable support member (20B) configured for engaging a second collar (16B) on the pipeline (10), —the fixed pipeline support (12) comprising: —at least a first fixed support member (20A) configured for engaging a third collar on the pipeline (10), —at least a second fixed support member (20B) configured for engaging a fourth collar on the pipeline (10), wherein the first (20A) and second fixed support member (20B) configured for engaging a fourth collar on the pipeline (10).

Abstract: A stinger (1) for a pipeline laying vessel, the stinger includes at least one track (3) which in use at least partly surrounds a firing line along which the pipeline (5) is laid, and at least one pipeline support (6) for supporting the pipeline, which pipeline support is movable along said track.

Abstract: The present invention relates to a pipeline guide assembly for a pipeline laying vessel, the pipeline guide assembly comprising:—a plurality of segments (20) pivotably interconnected via hinges (38) in an end-to-end relationship, each segment comprising at least one pipeline support (34) constructed to support a pipeline, wherein the pipeline supports provide a firing line (24) along which a pipeline can be launched,—a curvature mechanism (32) comprising at least one actuator (68, 68a, 68b, 68c, 68d), the curvature mechanism constructed for pivoting each segment relative to the next segment such that in use the segments provide a curved firing line, wherein the pipeline supports limit the curvature of the pipeline as it is launched along said curved firing line. The present invention also relates to a vessel comprising the stinger. The present invention also relates to a method of laying a pipeline utilizing the stinger of the invention.

Abstract: A vessel (1) for laying a pipeline, the vessel comprising a hull structure (3) comprising one or more floaters (4), a tower (5) defining a firing line (6) when positioned in a pipelaying position, the tower (5) being pivotable relative to the hull structure (3) about a tower pivot axis (7), and an A & R means (8) for abandoning and/or recovering the pipeline, wherein the tower (5) is pivotable about said tower pivot axis (7) substantially independent from the A & R means (8) and the A & R means (8) is configured to operate while the tower (5) is pivoted about said tower pivot axis (7).

Abstract: A pipeline laying vessel includes a J-lay system which defines a firing line. The J-lay system includes at least one lowering device for lowering a pipe section or pipeline in the firing line from an upper position to a lower position. The vessel further includes a first pipe-moving device and a second pipe-moving device, where the first pipe-moving device is configured for moving a pipe section from a first remote position remote from the firing line to a firing line position in the firing line, and the second pipe-moving device is configured for moving a pipe section from a second remote position remote from the firing line to the firing line position in the firing line. A method for laying a pipeline uses the above mentioned pipeline laying vessel.

Abstract: A pipeline laying vessel (1) for laying a pipeline (2) on a seabed, said vessel (1) comprising a J-lay system (4) defining a firing line (5) along which the pipeline (2) is laid, the J-lay system (4) comprising an alignment device (6) for aligning a pipe section (7) with the pipeline (2) suspended from the J-lay system (4) with a sufficient level of accuracy to allow the pipe section (7) to be welded to the pipeline (2), the alignment device (6) being constructed to maintain the alignment during at least a part of the welding operation of the pipe section (7) to the pipeline (2), wherein the alignment device (6) is movable between a first position (10) in the firing line (5) and a second position (11) outside the firing line (5), and the alignment device (6) is constructed to engage a pipe section (7) in the second position (11) and to be moved into the first position (10) together with the engaged pipe section (7).

Abstract: A J-lay system constructed to be positioned on board a pipeline-laying vessel, comprising a fixed pipeline support (12) and a movable pipeline support (12) configured for supporting a pipeline (10) which is suspended form the pipeline-laying vessel,—the movable pipeline support (12) comprising:—at least a first movable support member (20A) configured for engaging a first collar (16A) on the pipeline (10),—at least a second movable support member (20B) configured for engaging a second collar (16B) on the pipeline (10),—the fixed pipeline support (12) comprising:—at least a first fixed support member (20A) configured for engaging a third collar on the pipeline (10),—at least a second fixed support member (20B) configured for engaging a fourth collar on the pipeline (10), wherein the first (20A) and second fixed support member (20B) configured for engaging a fourth collar on the pipeline (10).

Abstract: The present invention relates to a pipeline guide assembly for a pipeline laying vessel, the pipeline guide assembly comprising:—a plurality of segments (20) pivotably interconnected via hinges (38) in an end-to-end relationship, each segment comprising at least one pipeline support (34) constructed to support a pipeline, wherein the pipeline supports provide a firing line (24) along which a pipeline can be launched,—a curvature mechanism (32) comprising at least one actuator (68, 68a, 68b, 68c, 68d), the curvature mechanism constructed for pivoting each segment relative to the next segment such that in use the segments provide a curved firing line, wherein the pipeline supports limit the curvature of the pipeline as it is launched along said curved firing line. The present invention also relates to a vessel comprising the stinger. The present invention also relates to a method of laying a pipeline utilizing the stinger of the invention.

Abstract: A vessel (1) for laying a pipeline, the vessel comprising a hull structure (3) comprising one or more floaters (4), a tower (5) defining a firing line (6) when positioned in a pipelaying position, the tower (5) being pivotable relative to the hull structure (3) about a tower pivot axis (7), and an A & R means (8) for abandoning and/or recovering the pipeline, wherein the tower (5) is pivotable about said tower pivot axis (7) substantially independent from the A & R means (8) and the A & R means (8) is configured to operate while the tower (5) is pivoted about said tower pivot axis (7).