WO2019101790A1 - Amarrage de tourelle libérable et procédé d'accouplement et de désaccouplement faisant appel à un navire de service - Google Patents

Amarrage de tourelle libérable et procédé d'accouplement et de désaccouplement faisant appel à un navire de service Download PDF

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Publication number
WO2019101790A1
WO2019101790A1 PCT/EP2018/082071 EP2018082071W WO2019101790A1 WO 2019101790 A1 WO2019101790 A1 WO 2019101790A1 EP 2018082071 W EP2018082071 W EP 2018082071W WO 2019101790 A1 WO2019101790 A1 WO 2019101790A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating structure
handling frame
turret
mooring
mooring device
Prior art date
Application number
PCT/EP2018/082071
Other languages
English (en)
Inventor
Torkjell Lisland
Original Assignee
Scana Offshore As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scana Offshore As filed Critical Scana Offshore As
Publication of WO2019101790A1 publication Critical patent/WO2019101790A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
    • B63B21/508—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets connected to submerged buoy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B2021/001—Mooring bars, yokes, or the like, e.g. comprising articulations on both ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B2021/001—Mooring bars, yokes, or the like, e.g. comprising articulations on both ends
    • B63B2021/002—Yokes, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B2022/028—Buoys specially adapted for mooring a vessel submerged, e.g. fitting into ship-borne counterpart with or without rotatable turret, or being releasably connected to moored vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers

Definitions

  • the invention relates to method for connecting or disconnecting a turret mooring on a floating structure.
  • the invention relates, in particular, to the method of connecting or disconnecting a floating power generator, adapted to be moored to the seabed through a disconnectable turret mooring.
  • the invention also relates to a mooring system for connecting or disconnecting the floating structure to or from the mooring device.
  • the floating power generators are preferable designed with only the necessary equipment installed and have as little extra space as possible.
  • the main purpose of the invention is to simplify disconnection and reconnection of the floating structure having a detachable turret mooring for towing the floating structure near the shore for service and repair.
  • This method and mooring system according to the invention will not only save space on the floating structure, but also decrease the cost and time required for the mooring of these structures. It makes it also possible to use the same service vessel and mooring system on a repeated number of floating structures in an efficient way since all necessary equipment are arranged on the service vessel. Summary of invention
  • the invention relates to a method for connecting a floating structure having a disconnectable turret mooring system, said turret mooring system comprising a turret arranged on the floating structure and a mooring device adapted to be releasably connected to the turret, said method comprising the following sequential steps of
  • the invention further relates to a method for disconnecting a floating structure having a disconnectable turret mooring system, said turret mooring system comprising a turret arranged on the floating structure and a mooring device adapted to be releasably connected to the turret, said method comprising the following sequential steps of
  • the method further comprises the step of pivoting the handling frame between a position where the longitudinal axis of the handling frame is substantially parallel with the sea surface connecting the service vessel to the floating structure, and to a position where the axis through the longitudinal direction of the handling frame is tilted disconnecting the service vessel from the floating structure
  • the floating structure is a floating power generator.
  • the method further comprising the step of connecting a buoyance member to the mooring device prior to the disconnection of the mooring device from the turret.
  • the method further comprises the step of rotating a first handling frame part connected to the service vessel relative a second handling frame part when connected to the floating structure in order to compensate for rolling motion caused by the sea.
  • the method further comprises arranging the guide pulley in a center position above the turret arrangement so that the wire is adapted to extend in a substantially vertically arranged line between the guide pulley and the mooring device when the wire is connected to the mooring device.
  • the method further comprises a connection between the service vessel and the floating structure being a ball and socket connection where a second wire is extending from the floating structure connection through the handling frame towards a winch adapted to pull in the second wire.
  • the method is repeatedly operable to a number of different floating power generators.
  • the invention further relates to a mooring system for connecting or
  • the mooring system comprising a service vessel having a handling frame shaped as an elongate member, said handling frame being hingedly attached to the service vessel at a first end, said handling frame is adapted to be removably attached to the floating structure when connecting or disconnecting the mooring device to the floating structure at an opposite second end.
  • Said mooring system further comprising a winch system coupled to the service vessel for lifting or lowering the mooring device to or from the floating structure in order to connect or disconnect the floating structure and the mooring device.
  • the handling frame having a fixed length.
  • the winch system comprising a guide pulley being arranged on the handling frame or on the floating structure at a position such that a wire extending from the winch to the mooring device is adapted to extend in a substantially vertical line between the guide pulley and the mooring line.
  • the handling frame comprising a rotary joint.
  • the handling frame comprising a socket connection or a ball connection arranged at the free end of the handling frame.
  • the socket or ball connection is adapted to mate with an oppositely arranged ball or socket connection at the floating structure.
  • Figure 1 shows the mooring device fully disconnected from the floating structure and the service vessel.
  • the mooring device is in this figure floating in the sea in a buoyancy equilibrium point.
  • Figure 2 shows the service vessel in a position close to the floating structure in a position prior to the connection with the floating structure.
  • Figure 3 shows the service vessel and the floating structure connected to each other through the handling frame.
  • Figure 4 shows the winch system attached to the mooring arrangement prior to the disconnection or connection of the mooring device to the
  • Figure 5 shows the mooring device disconnected from the floating structure.
  • the arrows P indicates that the mooring device could be lifted towards the floating structure.
  • Figure 6-11 shows another embodiment of the handling frame according to the present invention.
  • the handling frame is connected to the turret through a ball and socket.
  • FIG. 1 shows a floating structure in the form of a floating power generator 10.
  • the floating structure 10 comprises a disconnectable turret arrangement 15.
  • the turret arrangement 15 comprising a turret 5 attached to the floating structure 10 and a mooring device 8 releasably connected to the turret 5.
  • the turret 5 comprising a turret bearing 6a for attachment to the floating structure 10.
  • the turret 5 further comprising a turret connector part 6b.
  • the mooring device 8 comprising a turntable 7a where mooring lines 11 are permanently attached.
  • the mooring lines 11 further extends to the seabed.
  • the opposite ends of the mooring lines 11 are moored to the seabed in conventional ways.
  • the figure shows two mooring lines 11. There could however be one mooring line 11 or more than two mooring lines 11. All these embodiments being in the ambit of the invention.
  • the mooring device 8 further comprises a mooring connector part 7b.
  • the turret connector part 6b is adapted to receive the mooring connector part 7b.
  • the turret connector part 6b and the mooring connector part 7b having locking mechanisms (not shown) adapted to lock the parts 6b, 7b together.
  • the locking mechanism could be a snap connection (not shown) or other suitable connections that could both easy lock the mooring device 8 to the turret 5 in a locked position and at the same time disconnect the mooring device 8 from the turret 5 in a released position.
  • the mooring device 8 having a winch supporting part 9a, 9b.
  • the supporting part 9a, 9b may comprise a bridle 9a and a support line 9b where a first wire or rope 3 from the winch 2 could be connected to the mooring device 8.
  • the pick-up assembly 9c, 9d comprises a floating pick up buoy 9d and a pick- up line 9c that could be connected to the support line 9b.
  • a buoyancy member 12 is further attached to the mooring device 8.
  • the figure 5 shows two disconnectable buoyancy members 12 that are attached to the mooring device 8 prior to disconnection from the turret 5.
  • the buoyancy 12 could also be permanently attached to the mooring device 8 as a possible embodiment of the mooring device 8.
  • the figure further discloses a service vessel 1.
  • the service vessel 1 comprising a winch arrangement 2, 3, 4d and a handling frame 4.
  • the handling frame 4 is hingedly connected to the service vessel 1 through a connection 4a as a typical A-frame and is known per se.
  • the handling frame 4 is adapted to rotate around the connection 4a.
  • the handling frame 4 disclosed in the figure 1 is arranged at the stern part of the service vessel 1.
  • the handling frame 4 may however also be arranged at the bow part of the vessel 1 as a possible embodiment of the invention.
  • the opposite end of the handling frame 4 is adapted to be releasable connected to the floating structure 10.
  • the handling frame 4 could have a shape as an elongate member.
  • the handling frame 4 has a fixed length so that when the handling frame 4 is connected to the floating structure 10, the distance between the service vessel 1 and the floating structure 10 remains constant.
  • the handling frame 4 further comprises a rotary joint 4c arranged on the handling frame 4.
  • the handling frame 4 is thus divided into two parts 4e, 4f one part at each side of the rotary joint 4c.
  • the two parts 4e, 4f are rotatable connected to the rotary joint 4c. This result in that each part 4e, 4f is adapted to move independently due to motion in the sea.
  • the service vessel 1 and the floating structure 10 are thus allowed to move freely in a rolling movement due to wind and waves in the sea.
  • the free end of the handling frame 4 is adapted to be connected to the floating structure 10 through a connection 4b, 10a.
  • the connection 4b, 10a could for instance be performed hydraulically by moving two locking pins (not shown) through the connections 4b, 10a and thereby lock the service vessel 1 and the floating structure 10 together.
  • Other locking mechanism suitable for locking the two parts together could also be used.
  • a locking mechanism adapted to permanently lock or releasable lock two parts together such as the handling frame 4 and the floating structure 10 is known per se.
  • the rotary joint 4c is in the figures positioned in the middle of the handling frame 4 such that each parts 4e, 4f are substantially of equal length. Other positions are however also possible embodiments of the invention.
  • the service vessel 1 further comprises a winch 2 and a first wire 3.
  • the first wire 3 is adapted to extend from the winch 2 via a guide pulley 4d before the first wire 3 is connected to the mooring device 8.
  • the first wire 3 is attached to the support line 9b.
  • the first wire 3 is further extending through the turret 5 before attaching to the mooring device 8, depending on the operation being a connecting operation or a disconnection operation.
  • the guide pulley 4d is attached to the handling frame 4.
  • the guide pulley 4d could be arranged on a frame or bracket 4g protruding from the handling frame
  • the bracket 4g could have various designs not only the design shown in the figures.
  • the guide pulley 4d is however preferably positioned a distance above the turret 5.
  • the guide pulley 4d is more preferably arranged so that the first wire 3 that is extending from the guide pulley 4d, through the center of the turret
  • the first wire 3 follows a vertical line that is congruent with a vertical center axis A through the turret arrangement 15, as shown in figure 4.
  • Figure 2 shows the service vessel 1 in a position prior to the connection with the floating structure 10.
  • the part of the service vessel 1 with the handling frame 4 is positioned nearby the turret mooring arrangement 15 on the floating structure 10.
  • a longitudinal axis B of the handling frame 4 is arranged in a plane inclined relative the sea surface 13 as shown in the figure 2.
  • the handling frame 4 is then lowered down so that the longitudinal axis B of the handling frame 4 is arranged in a plane being substantially parallel with the sea surface 12.
  • the handling frame 4 could be lowered down by a hydraulic cylinder or by other equipment suitable for performing the lifting or lowering of the handling frame 4.
  • the handling frame 4 is lowered down towards a connection point 10a on the floating structure 10.
  • the free end of the handling frame 4 is then connected to the floating structure 10 through a connection 4b, 10a.
  • the connection could for instance be performed hydraulic by moving two locking pins (not shown) through the connections 4b, 10a and thereby lock the service vessel 1 and the floating structure 10 together.
  • Other locking mechanism suitable for locking the two parts together could also be used.
  • a locking mechanism adapted to permanently or releasable locking two parts together such as the handling frame 4 and the floating structure 10 is known per se.
  • the handling frame 4 is designed as a floating quay or member that could be connected to the floating structure 10 through mooring lines (not shown).
  • the mooring lines could be pulled in by winches arranged on the service vessel (1 ).
  • the rotary joint 4c is an optional feature in this
  • connection point 10a where the service vessel 1 is connected to the floating structure 10 is shown in figure 3.
  • Figure 4 shows the position where the first wire 3 is connected to the mooring device 8 or via the support line 9b.
  • the first wire 3 is pulled out from the winch 2.
  • the first wire 3 is further extending over the guide pulley 4d before the first wire 3 is attached to the mooring device 8.
  • the buoyance member or members 12 is connected to the mooring device 8, if the buoyance member(s) 12 is not permanently installed on the mooring device 8.
  • the guide pulley 4d has the purpose to be a guide for the first wire 3 between the winch 2 and the turret arrangement 15 to compensate for the shifting direction that the first wire 3 must perform to have a suitable position, both in relation to the winch and the mooring device 8.
  • FIG. 5 shows the following step where the mooring device 8 with buoyance members 12 are detached from the turret 5 and lowered by the winch arrangement 2, 3, 4d.
  • the buoyancy takes over the weight.
  • the pick-up assembly 9c, 9d represents a connection between the sea surface 13 and the mooring device 8 when the mooring device 8 is resting in its equilibrium position below the sea surface 12.
  • a pick-up buoy 9d makes sure that the mooring device 8 is easy to find when positioned below sea in this resting position. This provides a quick and easy method for obtaining the mooring device 8 for a reconnection with the floating structure 10.
  • the support line 9b between the first wire 3 or pick-up assembly 9c, 9d and the mooring device 8, is not a necessary feature of the invention.
  • the first wire 3 or pick-up assembly 9c, 9d may however be directly connected to the mooring device 8 as an alternative embodiment.
  • An ROV is then required to connect the first wire 3 or the pick-up line 9c to the mooring device 8. This is however more expensive than using the permanently installed support line 9b.
  • the support line 9b facilitate the connection of the first wire 3 and the pick-up assembly 9c, 9d to the mooring device 8.
  • the support line 9b makes the connection possible to perform at sea level instead of at the position where the mooring device 8 is positioned.
  • the pick-up buoy 9d may be picked up and the pick- up line 9c is pulled in until it is possible to replace the pick-up 9c line with the first wire or rope 3.
  • the support vessel 1 may be detached from the floating structure 10.
  • the floating structure 10 may thereafter be moved or towed to the shore for service or repair.
  • the service vessel 1 may easily repeat the operation on other similar floating structures 10 since all the necessary equipment to perform the operation are arranged on the service vessel 1.
  • a similar operation for reconnecting the mooring device 8 to the floating structure 10 could also be performed by the reverse action than the above disclosed operation. This operation is also illustrated by the reverse arrangement of the figures.
  • the figure 1 shows the start position of the operation where the mooring device 8 is fully detached and positioned remotely from the floating structure 10.
  • the mooring device is in its resting position.
  • the vessel 1 is connected to the floating structure 10 as previously disclosed.
  • the mooring device 8 is now floating below the sea surface 13 and is in contact with the sea surface 13 surface through the pick-up buoy 9d and the pick-up line 9c.
  • the first wire 3 from the support vessel 1 is then extended towards the support line 9b or the mooring device 8 in the same way as in the disconnecting operation.
  • the pick-up line 9c is then replaced by the first wire 3 and the mooring device 8 is lifted towards the turret 5 of the floating structure 10. This operation is illustrated in figure 5.
  • the mooring device 8 is then connected to the turret 5 and the first wire 3 is removed.
  • the buoyance member or members 12 may also be removed at the same time. These operations are shown in figure 4 and 3.
  • the support vessel 1 is further removed from the floating structure 10 by unlocking the connection between the handling frame 4 and the floating structure 10.
  • the handling frame 4 is then lifted to a position where the axis B through the longitudinal direction of the handling frame 4 is tilted compared to the sea surface 13 as shown in figure 2.
  • the service vessel 1 has completed the operation and may then move away from the now moored floating structure 10. The service vessel 1 may then move to another floating structure 10 for a connection of disconnection of another mooring device 8 to/from the floating structure 10 as disclosed above.
  • Figure 6-11 shows a different embodiment of the connection between a handling frame 4’ and the floating structure 10 when disconnecting or
  • the figure 6 shows a handling frame 4’ in an inclined position. This position corresponds to the position shown in figure 2. At the free end of the handling frame 4’, there is arranged a socket 4b’. At the top of the handling frame 4’, there is arranged a guide pulley 4d and a bracket 4g. These features are similar to the features disclosed in relation to the first embodiment.
  • the handling frame 4’ has a shape as an elongate member.
  • the handling frame 4’ is also hingedly connected through a connection 4a to the service vessel 1 in a similar way as in the first embodiment.
  • the floating structure 10 has a floating structure connection 10a’ formed as a semicircular or circular ball.
  • the connection 10a’, 4b’ is arranged near the turret mooring arrangement 15 as shown in the figure 7.
  • socket part 10a’ is attached to the floating structure 10 and the circular or semicircular ball 4b' is attached to the service vessel 1 , ie opposite than the connection part as shown in the figures 6-11.
  • Figure 7 shows a next step in the connection process.
  • the handling frame 4’ is lowered so that it is parallel with the sea surface as also described in the first embodiment.
  • a second wire 20 is extended between the connection socket 4b’ and the floating structure connection 10a’.
  • the second wire 20 is fixedly connected to the floating structure 10 at the floating structure connection 10a’.
  • the second wire 20 is then led through the handling frame 4’ and coupled to a winch (not shown) on the service vessel 1 by help of a forerunner (not shown).
  • the second wire 20 is pulled in by the winch and the two connection parts 10a’ and 4b’ are mated together. This is shown in figure 8 and 9.
  • Figure 10 and 11 shows the disconnection step where the mooring device 8 is disconnected from the floating structure 10. These steps are equal to the steps disclosed in relation to the first embodiment where the first wire 3 is led through the turret 5 and connected to the mooring device 8. The first wire 3 is extended via the guide pulley 4d as shown in the figures. The mooring device is then led to a resting position equal to the position shown in figure 1.
  • This embodiment may have a rotary joint (not shown) equal to the rotary joint 4c described in the first embodiment, attached to the handling frame 4’. It is however not a necessary feature as the ball and socket connection 4b’, 10a’ allows the free movement of the floating structure 10 and the service vessel 1’ to compensate for the movement due to waves or wind.

Abstract

L'invention concerne un procédé d'accouplement d'une structure flottante ayant un système d'amarrage libérable (15), qui comprend une tourelle (5) disposée sur la structure flottante (1) et un dispositif d'amarrage (8) conçu pour être accouplé amovible à la tourelle (5). Le procédé comprend les étapes séquentielles suivantes, consistant à déplacer un navire de service comprenant un cadre de manipulation (4, 4') vers la structure flottante (10), à accoupler le cadre de manipulation (4, 4') à la structure flottante (10) de sorte que la structure flottante (10) et le navire de service (1) sont maintenus à une distance fixe le long de l'axe longitudinal du cadre de manipulation, à étendre un premier câble (3) depuis un système de traction (2) situé sur le navire de service (1) par l'intermédiaire d'une poulie de guidage (4d) vers le dispositif d'amarrage (8), ladite poulie de guidage (4d) étant fixée au cadre de manipulation (4) et/ou fixée à la structure flottante (10) dans une position fixe au-dessus de la tourelle (5), à relier le premier câble (3) au dispositif d'amarrage (8), à soulever le dispositif d'amarrage (8) depuis une position de repos au-dessous de la surface de la mer vers la tourelle (5), à accoupler le dispositif d'amarrage (8) à la tourelle (5) et à retirer le navire de service (1) par libération du cadre de manipulation (4, 4').
PCT/EP2018/082071 2017-11-21 2018-11-21 Amarrage de tourelle libérable et procédé d'accouplement et de désaccouplement faisant appel à un navire de service WO2019101790A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20171855 2017-11-21
NO20171855A NO343850B1 (en) 2017-11-21 2017-11-21 Disconnectable turret mooring and method for connecting and disconnecting using a service vessel

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Publication Number Publication Date
WO2019101790A1 true WO2019101790A1 (fr) 2019-05-31

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WO (1) WO2019101790A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023084375A1 (fr) * 2021-11-10 2023-05-19 Exponential Renewables, S.L. Raccord rapide couplant une structure flottante en mer à un système d'amarrage pré-posé et son procédé

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US4359959A (en) * 1980-01-30 1982-11-23 Institut Francais Du Petrole Device for mooring a floating installation to an anchored offshore installation
US4556341A (en) * 1982-11-19 1985-12-03 Shell Oil Company Work platform
US5456622A (en) 1991-11-27 1995-10-10 Den Norske Stats Oleselskap A.S. Method and system for connecting a loading buoy to a floating vessel
US20020129755A1 (en) * 2001-01-12 2002-09-19 Dagfinn Hagen Apparatus for and method of installing subsea components
WO2010071433A2 (fr) * 2008-12-18 2010-06-24 Single Buoy Moorings Inc. Eoliennes de haute mer amovibles dotées d'un système d'amarrage installé au préalable
EP2933181A1 (fr) * 2013-01-21 2015-10-21 MHI Vestas Offshore Wind A/S Procédé de maintenance d'un dispositif de génération d'énergie éolienne flottant

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BR112015001611B1 (pt) * 2012-07-25 2017-09-12 Seahorse Equipment Corp Circuit anchor current tenser and method for tensioning an underwater anchor line
LT2993270T (lt) * 2013-04-30 2017-09-11 Acs Servicios, Comunicaciones Y Energia S.L. Povandeninė konstrukcija, skirta naudoti kaip generatorių bokštų ir pastočių ar panašių įrenginių aktyvioji atrama pakrantės infrastruktūroje

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359959A (en) * 1980-01-30 1982-11-23 Institut Francais Du Petrole Device for mooring a floating installation to an anchored offshore installation
US4556341A (en) * 1982-11-19 1985-12-03 Shell Oil Company Work platform
US5456622A (en) 1991-11-27 1995-10-10 Den Norske Stats Oleselskap A.S. Method and system for connecting a loading buoy to a floating vessel
US20020129755A1 (en) * 2001-01-12 2002-09-19 Dagfinn Hagen Apparatus for and method of installing subsea components
WO2010071433A2 (fr) * 2008-12-18 2010-06-24 Single Buoy Moorings Inc. Eoliennes de haute mer amovibles dotées d'un système d'amarrage installé au préalable
EP2933181A1 (fr) * 2013-01-21 2015-10-21 MHI Vestas Offshore Wind A/S Procédé de maintenance d'un dispositif de génération d'énergie éolienne flottant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023084375A1 (fr) * 2021-11-10 2023-05-19 Exponential Renewables, S.L. Raccord rapide couplant une structure flottante en mer à un système d'amarrage pré-posé et son procédé

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