A semisubmersible floating platform (1) for supporting at least one wind turbine, comprising four buoyant columns (3), each of them being attached to a ring pontoon (2); a transition piece (4) configured to support one wind turbine, disposed on the buoyant columns (3); and a heave plate (5) assembled to the internal perimeter of the ring pontoon (2). The ring pontoon (2) comprises four pontoon portions forming a quadrilateral-shaped ring pontoon (2) wherein the first end of each column (3) is attached to a respective corner of said quadrilateral-shaped ring pontoon (2). The heave plate (5) is located in the internal perimeter of the ring pontoon (2), both defining a hollow. The pontoon (2) is preferably divided into a plurality of compartments or construction blocks that may be filled with fixed ballast, such as concrete. The transition piece (4) has four arms arranged in star configuration and protruding from a central point at which the wind turbine is located, the connection between the transition piece (4) and the columns (3) being designed to be located above the sea splash zone. Each of the buoyant columns (3) comprises at least one ballast tank configured for allocating sea water in order to adjust the draft and to compensate for the inclination of the platform (1), said at least one ballast tank comprised in each column (3) being independent of the at least one ballast tank of the other columns (3).

A floating device for supporting an offshore wind turbine, comprising a central floating pillar for fixedly receiving a tower of the wind turbine, at least three peripheral floaters, and one leg per floater, each leg extending in a longitudinal direction that runs radially in relation to the central pillar; each leg has a proximal end that is secured to the central pillar, and a distal end that is secured to the floater; the legs include an outer tubular element, which extends in the longitudinal direction of the leg and has a curved cross-section perpendicularly to the longitudinal direction, and an inner tubular element, which extends in the longitudinal direction of the leg and has a polygonal cross-section perpendicularly to the longitudinal direction, the polygonal cross-section being inscribed in the curved cross-section. The invention also relates to a floating wind turbine unit comprising the device and a wind turbine.

We have invented a floating platform with 3 canted columns, a new type of fairlead, and a new method of mooring line makeup and installation method, that can be used for canted columns. The platform includes 3 columns having upper ends projecting above water surface. The columns are canted or inclined inward from the corner of hull toward the central vertical axis. The 3 columns converge at the top of column such that each column will lean against the other 2 columns. Each column has two connection points to the other 2 columns. Horizontally disposed pontoons interconnect adjacent columns at the lower ends. The columns and pontoons form a closed structure hull to support a foundation structure directly above the top of column.

Aspects of the present disclosure relate generally to apparatus for semi-submersibles, including hulls of semi-submersibles. In one implementation, a hull for a semi-submersible includes a pontoon having one or more sides, and a plurality of columns extending upwards from the pontoon and configured to support a topsides. Each one of the plurality of columns has a cross section that is in a plane perpendicular to an axial centerline of the respective one of the plurality of columns. The cross section includes a first portion being rectangular in shape and a second portion being triangular in shape and having an apex that extends inboard from the first portion.

We have invented a floating platform with 3 canted columns, a new type of fairlead, and a new method of mooring line makeup and installation method, that can be used for canted columns. The platform includes 3 columns having upper ends projecting above water surface. The columns are canted or inclined inward from the corner of hull toward the central vertical axis. The 3 columns converge at the top of column such that each column will lean against the other 2 columns. Each column has two connection points to the other 2 columns. Horizontally disposed pontoons interconnect adjacent columns at the lower ends. The columns and pontoons form a closed structure hull to support a foundation structure directly above the top of column.

The invention relates to a semisubmersible float, in particular for an offshore wind turbine, comprising at least four columns, including a central column and three outer columns connected to the central column by arms in the form of a pontoon, the outer columns and the pontoon arms comprising ballasts, is characterized in that the ballasts are filled by gravity and emptied using compressed air.

The invention relates to an improved, in particular simpler, lighter, mechanically more stable and operationally more reliable offshore wind power plant (100) that can float. By means of a cable (110) constructed as a combination of a power line that is held at least virtually without loading and a holding cable that absorbs all the mechanical forces that occur for holding the wind power plant on a single fixed-location anchoring point (111), said power plant can be connected to the anchoring point such that the power plant can move with six degrees of freedom. A coupling (112) is arranged at a single connecting point (118) between the cable and the wind power plant and, to make an electrical connection, is constructed with a sliding coupling and, for mechanical transmission of force, is constructed with a swivel coupling. The wind power plant has a supporting unit (101) constructed as a semi-submersible having ballast units (102) and buoyancy units (103), in particular a floating unit, and a supporting mast (104) which is firmly connected to the supporting unit and has a machine gondola (105) fixedly arranged on the latter and having at least one rotor (106) and at least one electric generator. The highest possible horizontal distance is formed between the connecting point and a substantially vertical plane of rotation of the rotor.

A highly safe large floating structure, and a basic module of a very large floating structure, includes multiple lower floating bodies, an upper structure, and intermediate connection structures. The multiple lower floating bodies include multiple distributed strip-shaped floating bodies. The floating bodies are spaced from each other by a certain distance. The sum of the displacement volumes of the floating bodies is greater than the displacement volume when the floating structure as a whole is fully loaded. The intermediate connection structures include at least multiple connection structures in a first direction, the first direction intersecting the horizontal plane. A connection structure in the first direction corresponds to a single strip-shaped floating body connected to three or more spaced structures. The cross-section width of each intermediate connection structure in the horizontal direction is less than the width of the corresponding strip-shaped floating body.

Apparatus and method for processing of production fluids from a subsea oil or gas well, in order to recover hydrocarbons from the well. In an embodiment, the apparatus is a column stabilised structure having an interconnected array of three columns, with the upper portion protruding above the surface of the sea. The apparatus described has processing facilities in a lower portion of a first column, power generation facilities in a lower portion of a second column and service and utilities in a lower portion of a third column. Further facilities equipment and storage tanks can be located in the columns.

The present invention relates generally to underwater wings for providing lift to boats. More particularly, the invention comprises an underwater wing that attaches to the hull or hulls of a pontoon or tri-toon boat. The purpose of the wing is to provide a designated amount of lift to reduce drag and improve performance of the watercraft. This is different from a traditional hydrofoil, which is designed to lift a boat completely out of the water.