An apparatus for installation and protection of subsea cables comprises at least a first tubular member (1) and at least a second tubular member (2). Both these are arranged to be installed subsea with a subsea foundation (3). This allows passage of cable (29) through it. The first tubular member (1) is arranged telescopically within the second tubular member (2) so as to extract outwardly towards seabed (5) from an end portion (7), with respect to the second tubular member (2), only up to a prefixed length. This ensures that a continuous conduit for the cable is obtained through the scour protection of the foundation (3). The present invention also includes a methodology for installation of the apparatus and a method for installing a cable through the scour protection of the foundation, by using the apparatus.
F16L 1/19 - Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying the pipes being J-shaped
F16L 1/26 - Repairing or joining pipes on or under water
F16L 1/16 - Laying or reclaiming pipes on or under water on the bottom
F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
F16L 1/20 - Accessories therefor, e.g. floats or weights
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 9/02 - Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottomCoverings therefor, e.g. tile
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
2.
Apparatus and a method for transportation, installation and retrieval of marine structures
An apparatus (1′) for transportation, installation and retrieval of marine structures (10) is disclosed and illustrated. It comprises at least two suitably connected vessels (1,2) with adjustable buoyancy, each having a first end (5) and a second end (8). The apparatus is equipped with lifting mechanism for lifting a marine structure on and from it. The vessels (1,2) are connected to each other at each said first end (5) at an angle (4) and are free at each said second end (8), thus forming a V-shape. The invention also embraces the methodology for transportation, installation and retrieval of marine structures, using the apparatus (1′).
B63B 9/00 - Methods of designing, building, maintaining, converting, refitting, repairing, or determining properties of, vessels, not otherwise provided for
B63B 35/42 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting marine vessels with adjustable draught
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
B63C 7/04 - Salvaging of disabled, stranded, or sunken vesselsSalvaging of vessel parts or furnishings, e.g. of safesSalvaging of other underwater objects in which the lifting is done by hauling using pontoons or the like
B63B 1/14 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently
A gravity-based structure (1) for supporting offshore installations comprising a foundation (4). The foundation (4) has a basal portion (11). The basal portion (11) has a plurality of openings (10) for drainage of water. There is at least one first layer (7) of filter material, with a gradation suitable for draining water entrapped beneath the basal portion (11) to the openings (10). The layer (7) is installed on the seabed (8) beneath the foundation (4). The foundation has a downwardly extending skirt (5) that is adapted to penetrate into the seabed beneath the filter material layer (7).
E02D 27/42 - Foundations for poles, masts, or chimneys
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02D 3/00 - Improving or preserving soil or rock, e.g. preserving permafrost soil
A gravity-based structure (1) for supporting offshore installations comprising a foundation (4). The foundation (4) has a basal portion (11). The basal portion (11) has a plurality of openings (10) for drainage of water. There is at least one first layer (7) of filter material, with a gradation suitable for draining water entrapped beneath the basal portion (11) to the openings (10). The layer (7) is installed on the seabed (8) beneath the foundation (4). The foundation has a downwardly extending skirt (5) that is adapted to penetrate into the seabed beneath the filter material layer (7).
A gravity-based structure (1) for supporting offshore installations comprising a foundation (4). The foundation (4) has a basal portion (11). The basal portion (11) has a plurality of openings (10) for drainage of water. There is at least one first layer (7) of filter material, with a gradation suitable for draining water entrapped beneath the basal portion (11) to the openings (10). The layer (7) is installed on the seabed (8) beneath the foundation (4). The foundation has a downwardly extending skirt (5) that is adapted to penetrate into the seabed beneath the filter material layer (7).
An apparatus for installation and protection of subsea cables comprises at least a first tubular member (1) and at least a second tubular member (2). Both these are arranged to be installed subsea with a subsea foundation (3). This allows passage of cable (29) through it. The first tubular member (1) is arranged telescopically within the second tubular member (2) so as to extract outwardly towards seabed (5) from an end portion (7), with respect to the second tubular member (2), only up to a prefixed length. This ensures that a continuous conduit for the cable is obtained through the scour protection of the foundation (3). The present invention also includes a methodology for installation of the apparatus and a method for installing a cable through the scour protection of the foundation, by using the apparatus.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
E21B 41/00 - Equipment or details not covered by groups
F16L 1/18 - Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying
H02G 9/02 - Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottomCoverings therefor, e.g. tile
7.
AN APPARATUS AND A METHOD FOR TRANSPORTATION, INSTALLATION AND RETRIEVAL OF MARINE STRUCTURES
An apparatus (1') for transportation, installation and retrieval of marine structures (10) is disclosed and illustrated. It comprises at least two suitably connected vessels (1,2) with adjustable buoyancy, each having a first end (5) and a second end (8). The apparatus is equipped with lifting mechanism for lifting a marine structure on and from it. The vessels (1,2) are connected to each other at each said first end (5) at an angle (4) and are free at each said second end (8),thus forming a V-shape. The invention also embraces the methodology for transportation, installation and retrieval of marine structures, using the apparatus (1').
B63B 9/00 - Methods of designing, building, maintaining, converting, refitting, repairing, or determining properties of, vessels, not otherwise provided for
B63B 9/04 - Rebuilding ships, e.g. increasing tonnage
B63B 35/42 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting marine vessels with adjustable draught
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
A support structure for installation on a seabed, comprising a foundation (2), and a column (1) secured to and extending up from the foundation and capable of supporting at least an equipment unit, the foundation (2') comprising a circumferential skirt (7) which extends downwards, thereby defining at least one compartment underneath the foundation (2). The skirt comprises a corrugated material, and is preferably constructed of corrugated steel plates.
A method of obtaining vertical alignment of a support member (5) suitable for carrying an equipment unit such as a wind turbine or the like, and which is configured for connection to a foundation (1) installed on a seabed (B). The method comprises the steps of: a) measuring the foundation's angle of inclination (α); b) transferring the angle of inclination (α) to a first end of the support member (5); c) forming an end piece (8) having an angular orientation with respect to the support member longitudinal axis (y) which corresponds to the angle of inclination, and d) installing the support member via its first end to the foundation; whereby the support member assumes a vertical orientation.
Provision is made for a platform (1) according to the invention to be able to be installed at the intended site thereof without the aid of floating cranes or helicopters. The intended site in the vicinity of the installations to be protected, such as maritime oil fields, oil-producing installations or wind farms, should also be selected to be dependent on the range of the installed sensors and defence devices. The platform (1) can be installed on the sea bottom, with it subsequently being possible to lift this platform (1) again and put it into operation again at another intended site. Nor are any floating cranes or helicopters needed for this new positioning. The platform (1) according to the invention is stable in all states: during the floating phase to the intended site and equally during the use phase after installation on the sea bottom. The design of the platform (1) is selected such that it is suitable over a wide range of water depths, for example for depths between ten and thirty metres, but equally also for other water depths.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
F41H 11/00 - Defence installationsDefence devices Means for clearing or detecting landmines
11.
SYSTEM AND METHOD FOR ACCURATE POSITIONING OF STRUCTURES IN SEA UNDER EXPOSURE TO WAVES AND CURRENTS
A system and a method for positioning a structure (1), floating in a body of water, at a desired position (P) comprises at least two anchors (7, 8; 1e, 1f) positioned on the seabed. Each anchor comprises respective connection lines (2, 3) for attachment to the structure, and a tug (5) connected to the structure. Each connection line (2, 3) comprises individual adjustment means (15). The length of the individual positioning lines may be adjusted individually and selectively during the positioning.
A buoyancy element (6, 7) for releasable connection to a structure (1) floating in a body of water (W) is characterized by a lower support element (19) and compartments (11 -14) fluidly interconnected via openings (60). One of said compartments is a central compartment (11) which via a control means (11b) and a duct (11a) is selectively fluidly connected with water surrounding the buoyancy element, whereby the buoyancy element (6, 7) is connected to the structure (1) only by means of the hydrostatic pressure exerted by the water onto the buoyancy element (6, 7). A device (8) for increasing the buoyancy and stability of a structure (1) floating in a body of water (W), for releasable connection to said structure is characterized by a wall (24a, 24b) encircling a portion (2a) of the structure and extending upwards from a support region (3; 30) on the structure to a distance above the water and thereby defining a compartment (25) between the wall section and the portion of the structure, whereby the water plane area and buoyancy for the combined device and structure are enhanced. A buoyant compounded structure, capable of being transported in a semi- submersible state in a body of water, comprises a plurality of buoyant individual structures (l a-c) having respective individual water plane areas and connection means (30; 31, 30a-c, 33) and abutment regions (9, 34, 35, 34', 35 '). The connection means are releasably connected between each of said individual structures at a vertical distance from said abutment regions, whereby the compounded structure comprises one, substantially rigid, body having a floating stability which is better than the floating stability of the individual structures when such individual structures are disconnected from each other.
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
Goods & Services
Machines and machine tools; motors and engines (except for
land vehicles); machine coupling and transmission components
(except for land vehicles); agricultural implements other
than hand-operated; incubators for eggs; all aforementioned
goods related to foundations for marine energy converters
and also goods for foundation of marine energy converters. Vehicles; apparatus for locomotion by land, air or water;
all aforementioned goods related to foundations for marine
energy converters. Building construction; repair; installation services; all
aforementioned services related to foundations for marine
energy converters, and also services for foundation of
marine energy converters.
A support system for an offshore structure such as a wind turbine, comprises a lower column (1) for supported via its first end by the seabed (S); at least one mooring arrangement (3a,b, 4a,b, 5a,b) connected at a first end to the lower column (1) and at a second end to at least one respective anchor means (6a,b, 7a,b, 8a,b). Each mooring arrangement comprising at least a tubular portion (12a,b) attached via connection means (18a,b) in an end-to-end relationship to a flexible portion (15a,b). Each mooring arrangement comprises at least two tubular portions (12a,b) attached to the lower column (1) and arranged substantially in a side-by-side relationship and via respective connection means (18a,b) attached in an end-to-end relationship to two respective flexible portions (15a,b), each flexible portion being connected to respective anchors (6a,b).
A device for installation on a seabed (S) below a body of water (W) comprises a first wall element (23; 5; 7a-c) having a second wall element (22; 2; 4a-c) extending from and along the periphery of the first wall element, the first and second wall elements thereby defining an open compartment (20; 9; 3a-c). The second wall element is adapted for penetration into the seabed (S) whereby the compartment is closed by said wall elements and the seabed. A sealing means (F) is provided in the compartment (20; 9; 3a-c) and extending to the second wall element (22; 2; 4a-c), thereby defining a membrane (F) between the compartment and the seabed. The sealing means (F) comprises a membrane which is impervious to water. A foundation base (1) comprise a plurality of devices, connected via a central structure (5; 13, 13'). It is also provided an autonomous fluid control device (11) for controlling the flow of a first fluid and a second fluid, comprising a chamber (14) having a first opening (15) and a second opening (16). A closure element (17) is movable within the chamber (14) and adapted for selectively closing and opening the first opening (15) and the second opening (16), and comprising a material having a bulk density which is greater than the density of first fluid and less than the density of the second fluid. The closure element (17) may comprise a spherical element.
An arrangement (1) for placement on a seabed (3) below a body of water (2), for support of a device for the production of electric power from wind, comprises a column (6; 6') having a first end provided with connecting means (8) that project above the body of water when the arrangement is installed on the seabed. At a portion that is below the surface of the body of water when the arrangement is installed on the seabed, the column is connected to three legs (5a-c), the legs at a second end being connected to respective foundations (4a-c) designed for installation on and transfer of forces to the seabed. Each foundation comprises a compartment (11) defined by a plate member (10) which at its periphery is connected to a skirt (9) that extends downwards from the plate element when the foundation is installed on the seabed, such that a substantially closed space (H ') is formed in the compartment. Furthermore, each foundation (4a-c) comprises a ballasting compartment (12) defined by a lower plate member (10) which at its periphery is connected to a portion (13) of the respective leg (5a-c) and an upper partition (29) in the respective leg, and provided with means (27) for the supply of ballast liquid.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
A buoyant stabilizing device (82; 90) for a hollow unstable foundation (1) to be maneuvered in a body of water (W) comprises at least a lower support section (84; 94a,b) for buoyantly supporting the element (1), and a plurality of columns (83a-d; 93) extending in a generally upward direction when the stabilizing devise is floating in the water. The columns comprise one or more hollow compartments for holding ballast water. Preferably, the device comprises modules, wherein each module (90a,b) comprises a shape which is complementary with a corresponding region on the element (1) and with abutment means (91) on the element, whereby the device buoyantly supports the element (1).
A foundation (1) for installation on a seabed (B) below a body of water (W), having a bottom part (6), a main body (5) and a connection portion (15) for a support structure and/or an equipment unit and comprising a first ballast compartment (13; 13b) and a second ballast compartment (16; 13a); a portion (20') of the first ballast compartment (13; 13b) in a region of its upper end having an opening (19) between the first and second ballast compartments; a channel (20) extending between a region above the second ballast compartment (16) and into the first ballast compartment (13); and a conduit (18) extending between the second ballast compartment (16; 13a) and the exterior of the foundation (1). The invention also comprises a method of assembling the foundation and a method of installing the foundation ion a seabed.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
A support structure for use in the offshore wind farm industry, and a method of manufacturing and installing same, comprising a foundation (4; 4') for installation on a seabed (3) below a body of water (2) and a tower (7) connected to and extending upwards from the foundation and being capable of supporting at least an equipment unit (5). The foundation (4; 4') comprises a bottom slab element (14) and a wall (23, 54) extending upwards from the bottom slab element (14), thereby defining a first cavity (15) for holding ballast (19) and for providing buoyancy during tow-out and installation. The foundation (4; 4') comprises a circumferential skirt (18) extending downwards from the bottom slab (14), thereby defining at least one compartment 17a-c underneath the foundation (4; 4').
A support structure for use in the offshore wind farm industry, and a method of manufacturing and installing same, comprising a foundation (4; 4') for installation on a seabed (3) below a body of water (2) and a tower (7) connected to and extending upwards from the foundation and being capable of supporting at least an equipment unit (5). The foundation (4; 4') comprises a bottom slab element (14) and a wall (23, 54) extending upwards from the bottom slab element (14), thereby defining a first cavity (15) for holding ballast (19) and for providing buoyancy during tow-out and installation. The foundation (4; 4') comprises a circumferential skirt (18) extending downwards from the bottom slab (14), thereby defining at least one compartment 17a-c underneath the foundation (4; 4').
A tower structure (1) for use in a body of water, comprising a hollow outer section (2) with a first end (4) equipped with an opening. An inner section (3) is telescopically accommodated in the cavity of the outer section (2) and is telescopically movable in the outer section (2) from a position in which essentially the whole of the inner section is accommodated in the outer section to a position in which a length of the inner section projects above the first end of the outer section. The inner section comprises a plurality of chambers (6, 6') fluid-connected via ducts (10') and openings (9), and where at least one chamber is fluid-connected via at least one duct (10) to a source for a ballasting fluid (8), whereby the chambers (6) can selectively be filled with ballasting fluid.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
