Abstract: A system for generating electrical energy comprises a circuit containing a working fluid, an evaporator configured for boiling the working fluid, a turbine driven by the vaporized working fluid, and an electric generator coupled to the turbine for creating electric energy. The system further comprises a condenser for condensing the working fluid which flows from the turbine, and a pump for pumping the working fluid through the circuit. A hydrocarbons pipeline transports hydrocarbons having a hydrocarbon temperature from a well, a seawater intake is configured for taking in seawater having a seawater temperature, and a seawater discharge is configured for discharging the seawater.

Abstract: A method of laying a pipeline (100) on a seabed (9), said method comprising the steps of; constructing a section of pipeline (6) by interconnecting pipe sections (31), positioning the section of pipeline on an underwater storage surface (74), and recovering the section of pipeline from the under water storage surface and spooling the section of pipeline on a reel (2) provided on a vessel (15).

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 trenching device (1) for forming a trench (2) in a seabed (3) to receive an elongate object, such as a pipeline, said trenching device (1) comprising a base frame (6), and a trenching wheel (7) which is connected to the base frame (6) and rotatable about a trenching wheel axis (8) to form the trench (2), wherein the trenching device (1) is configured to push the trenching wheel (7) into the seabed (3) when the trenching wheel (7) is positioned on the seabed (3).

Abstract: A pipeline laying vessel for laying a pipeline (5) on a seabed, which pipeline laying vessel comprises a hull, a positioning device (6) for positioning a pipe section in a firing line (3) along which the pipeline is laid, which positioning device is supported by the hull, and a clamp (17) for holding the pipeline suspended from the vessel, wherein the clamp is located in the firing line, and comprises a support device (18) constructed and arranged to allow the clamp to hold the pipeline in a first mode wherein the clamp has a fixed position relative to the positioning device, and in a second mode (52) wherein the clamp is pivotable relative to the positioning device.

Abstract: A method of laying a pipeline (100) on a seabed (9), said method comprising the steps of: constructing a section of pipeline (6) by interconnecting pipe sections (31), positioning the section of pipeline on an underwater storage surface (74), and recovering the section of pipeline from the under water storage surface and spooling the section of pipeline on a reel (2) provided on a vessel (15).

Abstract: A traction device for paying out and retrieving a flexible line including a line mover, wherein the line mover includes at least one movable friction surface, the friction surface in total defines at least two arc sections configured to move the line along with the arc sections, in use the line is wound around the friction surface such that the line has a first contact area being in contact with the first arc section and a second contact area being in contact with the second arc section, and the traction device includes a line controller coupled to the line between the first contact area and the second contact area and configured to control the velocity with which the line in use is fed to the second arc section, and also a method and use of the traction device.

Abstract: The present invention relates to a pipe section (10), constructed to be joined end-to-end to a same pipe section in order to form a pipeline which is laid from a pipeline laying vessel, the pipe section having a pipe has a greater wall thickness than the wall thickness of a main part of the pipe wall (15), the pipe section comprising a thickened gripping zone (20) which section, wherein the thickened gripping zone has a length (22) and a wall thickness which are constructed and arranged to allow a shear clamp (45) having protrusions (48) to grip the thickened gripping zone in order to suspend the pipeline from the pipeline laying vessel via the thickened gripping zone.

Abstract: A pipeline laying vessel for laying a pipeline (5) on a seabed, which pipeline laying vessel comprises a hull, a positioning device (6) for positioning a pipe section in a firing line (3) along which the pipeline is laid, which positioning device is supported by the hull, and a clamp (17) for holding the pipeline suspended from the vessel, wherein the clamp is located in the firing line, and comprises a support device (18) constructed and arranged to allow the clamp to hold the pipeline in a first mode wherein the clamp has a fixed position relative to the positioning device, and in a second mode (52) wherein the clamp is pivotable relative to the positioning 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 traction device for paying out and retrieving a flexible line including a line mover, wherein the line mover includes at least one movable friction surface, the friction surface in total defines at least two arc sections configured to move the line along with the arc sections, in use the line is wound around the friction surface such that the line has a first contact area being in contact with the first arc section and a second contact area being in contact with the second arc section, and the traction device includes a line controller coupled to the line between the first contact area and the second contact area and configured to control the velocity with which the line in use is fed to the second arc section, and also a method and use of the traction device.

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: A method for manufacturing a double walled pipeline comprises providing a pipeline section including an inner tubular member and an outer tubular member, providing a coupling member, and controlling the stress distribution in the inner tubular member and the outer tubular member by coupling the inner tubular member and the outer tubular member directly to the coupling member.

Abstract: A method and apparatus for joining pipe sections (102, 104) together to form an underwater pipeline. The pipe sections (102, 104) are in an abutting position and have a generally vertical orientation. The apparatus comprises at least two welding equipment carriers (148, 152) and at least two welding heads (110, 112). Each welding head is connected to an equipment carrier (148, 152) by means of at least one umbilical (130, 132). The apparatus further comprises a welding head guide assembly (113) which is adapted to be fixed to one of said upper of lower pipe sections. The welding head guide assembly (113) guides the welding heads about the pipe sections (102, 104). The apparatus further comprises a guiding device (133) which guides the welding equipment carriers (148, 152) around said welding area (115). The welding equipment carriers (148, 152) are movable independently from one another.

Abstract: The present invention relates to a method for laying a pipeline using a vessel (1) comprising a crane (2) comprising the following steps lifting a new pipe section (8) using the crane, placing a new pipe section on an existing pipeline (9), lining up the new pipe section with respect to the existing pipeline, welding the new section to the existing section, lowering the joined new section and the existing pipe, supporting the joined new section so that the crane is free to lift another new section. The invention further relates to a pipe-laying vessel for carrying out such method.

Abstract: The invention relates to a method for positioning an end (19) of a first pipe section (14) relative to an end (20) of a second pipe section (18), the method comprising: (a) prepositioning the end (19) of the first pipe section (14) near the end (20) of the second pipe section (18), defining a connection area (51) comprising the respective ends (19, 20) of the first and second pipe sections (14, 18); (b) performing a measuring process comprising a plurality of measuring steps, each measuring step comprising: (b1) moving a sensing device (86) to a location (89a, 89b, 89c) near the connection area (51); (b2) automatically measuring the location (89a, 89b, 89c) of the sensing device (86) relative to a reference location (87); (b3) automatically measuring point positions (98a, 98b, 98c, 98d) of points on the ends (19, 20) of the first and second pipe sections (14, 18) relative to the sensing device location (89a, 89b, 89c); (c) determining a target position of the end (19) of the first pipe section (14) relative t

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 method for laying a pipeline using a vessel (1) comprising a crane (2) comprising the following steps lifting a new pipe section (8) using the crane, placing a new pipe section on an existing pipeline (9), lining up the new pipe section with respect to the existing pipeline, welding the new section to the existing section, lowering the joined new section and the existing pipe, supporting the joined new section so that the crane is free to lift another new section. The invention further relates to a pipe-laying vessel for carrying out such method.

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).

Abstract: The invention relates to a method for positioning an end (19) of a first pipe section (14) relative to an end (20) of a second pipe section (18), the method comprising: (a) prepositioning the end (19) of the first pipe section (14) near the end (20) of the second pipe section (18), defining a connection area (51) comprising the respective ends (19, 20) of the first and second pipe sections (14, 18); (b) performing a measuring process comprising a plurality of measuring steps, each measuring step comprising: (b1) moving a sensing device (86) to a location (89a, 89b, 89c) near the connection area (51); (b2) automatically measuring the location (89a, 89b, 89c) of the sensing device (86) relative to a reference location (87); (b3) automatically measuring point positions (98a, 98b, 98c, 98d) of points on the ends (19, 20) of the first and second pipe sections (14, 18) relative to the sensing device location (89a, 89b, 89c); (c) determining a target position of the end (19) of the first pipe section (14) relative t