Abstract: The present invention relates to a semi-submersible vessel comprising at least one lower hull section (22) which defines a first water displacing volume; a support structure (24) connected to the at least one lower hull section (22) and extending upward from the at least one lower hull section, wherein the support structure (24) has a waterplane area which is substantially smaller than the waterplane area of the at least one lower hull section; a deck structure (26) connected to the support structure (24), wherein the deck structure (26) is provided at a distance above the at least one lower hull section (22); a ballast system for controllably varying the draft of the vessel such that at a first draft (30) the at least one lower hull section (22) may be provided at least in part above the water-line and at a second draft (28) the support structure may be provided at least partly below the water-line; wherein the assembly of said at least one lower hull section, said support structure and said deck structure c

Abstract: The invention relates to a pipeline assembly and a method of installing a pipeline assembly, wherein the pipeline extends at least in part on a seabed and curves upwardly from the seabed along a curved section thereof, the pipeline extending toward a delivery end provided at the water surface, wherein a connecting device connects the pipeline at a coupling point to an anchoring device at the seabed for preventing the coupling point from moving upward. The invention further relates to a pipeline device comprising at least two pipeline assemblies which are interconnected at a substantial distance from the seabed.

Abstract: The invention relates to a pipeline assembly and a method of installing a pipeline assembly, wherein the pipeline extends at least in part on a seabed and curves upwardly from the seabed along a curved section thereof, the pipeline extending toward a delivery end provided at the water surface, wherein a connecting device connects the pipeline at a coupling point to an anchoring device at the seabed for preventing the coupling point from moving upward. The invention further relates to a pipeline device comprising at least two pipeline assemblies which are interconnected at a substantial distance from the seabed.

Abstract: The present invention relates to a floating production platform for oil and/or gas production in a marine environment, the floating production platform comprising: a floater for providing buoyancy, the floater having suitable motion characteristics for supporting a dry tree riser, at least one riser support point constructed and arranged for supporting at least one dry tree riser which extends between the floating production platform and a seabed, a rotary communication assembly constructed and arranged for providing communication between the floating production platform and a vessel for: transferring a product fluid coming out of the at least one riser to the vessel, and/or transferring other fluids between the floating production platform and the vessel, and/or transferring electrical power via one or more electrical lines between the floating production platform and the vessel, transferring control signals via one or more electrical lines or fibre optic lines between the floating production platform an

Abstract: The present invention relates to a semi-submersible vessel comprising at least one lower hull section (22) which defines a first water displacing volume; a support structure (24) connected to the at least one lower hull section (22) and extending upward from the at least one lower hull section, wherein the support structure (24) has a waterplane area which is substantially smaller than the waterplane area of the at least one lower hull section; a deck structure (26) connected to the support structure (24), wherein the deck structure (26) is provided at a distance above the at least one lower hull section (22); a ballast system for controllably varying the draft of the vessel such that at a first draft (30) the at least one lower hull section (22) may be provided at least in part above the water-line and at a second draft (28) the support structure may be provided at least partly below the water-line; wherein the assembly of said at least one lower hull section, said support structure and said deck structure c

Abstract: The invention relates to a pipeline assembly (1) and a method of installing a pipeline assembly, wherein the pipeline (10) extends at least in part on a seabed (14) and curves upwardly from the seabed along a curved section (15) thereof, the pipeline extending toward a delivery end (36) provided at the water surface (4), wherein a connecting device (27) connects the pipeline at a coupling point (30) to an anchoring device (26) at the seabed for preventing the coupling point from moving upward. The invention further relates to a pipeline device (122) comprising at least two pipeline assemblies which are interconnected at a substantial distance from the seabed.

Abstract: The invention relates to a pipeline assembly and a method of installing a pipeline assembly, wherein the pipeline extends at least in part on a seabed and curves upwardly from the seabed along a curved section thereof, the pipeline extending toward a delivery end provided at the water surface, wherein a connecting device connects the pipeline at a coupling point to an anchoring device at the seabed for preventing the coupling point from moving upward. The invention further relates to a pipeline device comprising at least two pipeline assemblies which are interconnected at a substantial distance from the seabed.