EP1487693B1 - Konstruktion für den transport, die installation und die zerlegung einer brücke einer festen ölplattform und verfahren zur implementierung der konstruktion - Google Patents

Konstruktion für den transport, die installation und die zerlegung einer brücke einer festen ölplattform und verfahren zur implementierung der konstruktion Download PDF

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Publication number
EP1487693B1
EP1487693B1 EP03722695A EP03722695A EP1487693B1 EP 1487693 B1 EP1487693 B1 EP 1487693B1 EP 03722695 A EP03722695 A EP 03722695A EP 03722695 A EP03722695 A EP 03722695A EP 1487693 B1 EP1487693 B1 EP 1487693B1
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EP
European Patent Office
Prior art keywords
hull
deck
travelling block
bridge
raising
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Expired - Lifetime
Application number
EP03722695A
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English (en)
French (fr)
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EP1487693A1 (de
Inventor
Pierre-Armand Thomas
Pal Teien
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Technip Energies France SAS
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Technip France SAS
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Publication of EP1487693A1 publication Critical patent/EP1487693A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0052—Removal or dismantling of offshore structures from their offshore location
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet

Definitions

  • the present invention relates to a structure for transporting, installing and dismantling a bridge of a fixed offshore oil platform. It also relates to a method for transporting, installing and dismantling a bridge of a fixed oil platform.
  • a fixed oil platform that includes a bridge including operating equipment and living quarters.
  • the bridge is supported by a support column anchored on the sea floor.
  • the first method is to use lifting cranes mounted on barges to transfer the deck of the platform of the transport boat to a superstructure consisting of a support column. This method, which until now is the most widespread, has limitations.
  • the first of these limitations is the capacity of the hoisting cranes which can impose to realize the bridge in several elements which significantly increases the manufacturing cost of this bridge and the cost of the installation and dismantling of said bridge of the oil rig.
  • the second limitation lies in the fact that this method requires to have a relatively large window of time to be able to carry out this operation at sea in good conditions.
  • the second method is to install the oil rig deck as a single block on the support column by floating it above of it. Then, the bridge is disposed on this support column either by a ballast / deballasting system, or by a mechanical system.
  • US 5855455 discloses such a system.
  • the deck of the platform is supported either by a floating support constituted for example by a barge, pontoons or by a U-shaped floating support, or by means of a structure associated with this floating support.
  • the superstructure can be ballasted or unballasted
  • the superstructure having a large ballast capacity, the dismantling operation can proceed relatively quickly.
  • the deballasting capacity of the floating support may be used. This capacity being limited, the operation proceeds slowly.
  • ballasting / deballasting system is the use of a mechanical system to raise or lower the deck of the oil platform. These systems make it possible to carry out the installation or dismantling operation of the deck of the oil platform faster than the systems mentioned above.
  • Another mechanical system consists of a rack and pinion system to raise or lower the deck of the oil platform.
  • the object of the invention is to avoid these drawbacks by proposing a structure for transporting, installing or dismantling a bridge of a fixed oil platform which is designed to facilitate the different operations while allowing to save a lot of time and to avoid any risk of environmental pollution and to increase the security of the personnel responsible for carrying out the various operations.
  • FIG 1 there is shown schematically a fixed oil platform generally designated by reference 1 and comprising a bridge 2 provided with the usual operating equipment and living quarters.
  • This bridge 2 is mounted on a support column 3 whose base is anchored on the seabed 4 by anchoring members 5.
  • the structure 10 comprises a floating hull 11 in the shape of a U equipped with lifting legs 12 of this hull 11 and adapted to bear on the seabed.
  • the shell 11 has two lateral portions 11a and a connecting portion 11b connecting the two side portions 11a.
  • the shell 11 is equipped with four lifting legs 12 arranged in pairs on each lateral branch 11a of said shell 11.
  • the shell 11 may be equipped with three lifting legs 12 distributed in a triangle, a leg 12 being placed on each side portion 11a and a leg 12 being placed on the connecting portion 11b.
  • Each leg 12 ends at its lower end by a shoe 13 intended to bear on the seabed 4.
  • each of these legs 12 has, in this embodiment, a triangular section. These legs 12 may also have a square or circular section.
  • Each leg 12 is formed of three ribs 14 interconnected by a lattice of metal beams 15.
  • Each leg 12 is associated with mechanical means of displacement designated by the general reference 20 ( Figures 3 and 4).
  • the mechanical displacement means 20 are housed in a supporting frame 16, also called by the "jack-house” specialists, which is supported by the shell 11.
  • the mechanical displacement means 20 of each leg 12 comprise, on the one hand, two opposite plates 21 each carried by a rib 14 of the corresponding leg 12 and each comprising, on each lateral face , a series of teeth 22 forming on the two ribs 14 a double rack.
  • the mechanical displacement means 20 also comprise several sets 25 distributed on either side of each plate 21, according to the height thereof.
  • Each set 25 comprises a geared motor unit 26 for driving a pinion 27 which meshes with a series of teeth 22 of the corresponding plate 21.
  • the two sets of teeth 22 of each plate 21 are associated with eight pinions 27 each rotated by a geared motor unit 26.
  • the structure 10 also comprises a shuttle designated by the general reference 30 which is movable along the legs 12 by the shell 11 and which is intended to be applied on the underside of the deck 2 of the oil platform 1, as it is will see later.
  • the shuttle 30 is composed of independent elements 31 the number of which corresponds to the number of legs 12 of the structure 10.
  • the shuttle 30 consists of four independent elements 31, each associated with a lifting leg 12.
  • the shuttle 30 may also consist of a frame-shaped element supported by the lifting legs 12 by means of the mechanical displacement means 20.
  • the element 31 comprises a vertical leg 32 for positioning on a lateral face of the supporting framework 16 of the shell 11 and a horizontal support leg 33 of the bridge 2 during its transport.
  • the vertical branch 32 comprises guide means on the corresponding leg 12 and locking means on this leg 12.
  • the guide means are formed by two opposite flanges 34 formed at the upper part of the vertical branch 32 and extending parallel to the horizontal branch 33 of the element 31.
  • Each flange 34 determines with said vertical branch 32 a housing 35 for a plate 21 of the corresponding leg 12.
  • each element 31 is guided on the corresponding leg 12 by the plates 21.
  • each element 31 are formed, as represented in FIG. 6, by at least one counter-rack 36 and, preferably, by at least one counter-rack 36 for each plate 21.
  • the counter-rack 36 is displaceable by at least one actuating member 37 and, preferably, by two actuating members 37 constituted for example by hydraulic or pneumatic cylinders in order to move the counter-rack 36 between a retracted position and a locking position in engagement on one of the series of teeth 22 of the corresponding leg 12.
  • the assembly constituted by the counter-rack 36 and the actuating members 37 is carried by the element 31 by means of suitable fasteners, not shown.
  • each element 31 of the shuttle 30 is provided with lateral stabilization members of the bridge 2 in the support position of this bridge 2 and which are formed by at least one hydraulic or pneumatic cylinder 38 with horizontal displacement arranged for example in the vertical branch 32 of said element 31.
  • each element 31 is provided with two slides 39 each extending vertically along a lateral edge of the vertical branch 32.
  • Each slide 39 cooperates with a vertical slide 40 fixed on the frame 16 at each lifting leg 12.
  • the slides 39 and 40 are provided on their faces facing a sliding lining formed for example by a "Teflon" gasket.
  • each element 31 comprises, on its upper face, resilient members 41 for supporting the bridge 2 of the oil platform 1.
  • These elastic members 41 are constituted for example by elastomer blocks or by example by airbags or by any other appropriate system.
  • the shell 11 is provided on its upper face with rails 42 extending in the same direction as the lateral portions 11a of said shell 11 and which allow the horizontal sliding of the bridge 2 when the latter has previously placed on said shell 11 between the support position on the elements 31 of the shuttle 30 and a storage position outside the structure 11, as for example on the dock of a port to allow disassembly of the bridge 2 in all safety for the personnel or vice versa ie the transfer of the bridge 2 of the wharf on the elements 31 of the shuttle 30 for the transport of this bridge 2 to the operating site.
  • the shell 11 comprises, at its open portion, a door 43 formed for example of two leaves 44 movable between an open position for the positioning of the structure 10 below the bridge 2 and a closed position during the transfer said bridge 2 by the structure 10.
  • the transport of the bridge 2 by the structure 10 between the operating site and a dock of a port is carried out as follows.
  • the structure 10, with the leaves 44 in the open position is floated below the deck 2 of the platform 1 by positioning the support column 3 of the deck 2 in the U-shaped space formed between the lateral portions 11a of the shell 11. During this positioning, the lifting legs 12 are in the retracted position so that the shoes 13 are arranged below the hull 11. The elements 31 of the shuttle 30 are applied against the shell 11, as shown in particular in FIG. 2.
  • the geared motor units 26 are actuated to drive in rotation the pinions 27 which mesh with the series of teeth 22 of the plates 21 of each lifting leg 12 in order to bring the shoes 13 in contact with the seabed 4.
  • the support column 3 is separated from the bridge 2 for example by cutting the rods of this support column and the assembly constituted by the shell 11, the shuttle 30 and the bridge 2 is raised to separate the bridge 2 of the column support 3 which remains in a vertical position, as shown in FIG. 7C.
  • the hull 11 is floated by the drive in the opposite direction of the pinions 27 which mesh with the series of teeth 22 (Figure 7D) and the pinions 27 are always rotated, which causes, by reaction due to the depression of the hull 11 in the water, the lifting of the lifting legs 12 (FIG. 7E), which makes it possible to releasing the shell 11 supporting the bridge 2 via the shuttle 30 of the operating site on which the support column 3 is still in place, as shown in Figure 7F.
  • the hull 11 supporting the deck 2 is floated ( Figure 71) to a dock of a port ( Figure 7J) and the lifting legs 12 are applied on the bottom to stabilize the hull 11.
  • the cylinders 38 are retracted and a connecting piece 6 is placed between the shell 11 and the dock to ensure continuity between the surface of the shell 11 and said dock. Then, the bridge 2 is unloaded on this platform by for example sliding on the rails 42.
  • the transport structure 10 is floated near the dock and the lifting legs 12 are applied to the bottom to stabilize the hull 11.
  • the connection between the surface of the hull 11 and the dock is provided by the part 6 and the bridge 2 is transferred from the platform to the elements 31 of the shuttle 30 by sliding it on the rails 42.
  • the structure 10 supporting the deck 2 is flown to the vicinity of the operating site and the lifting legs 12 are applied to the seabed so as to lift the deck 2 by means of the hull 11 and the shuttle 30.
  • the elements 31 of the shuttle 30 are locked on the lifting legs 12 by means of the counter-racks 36 which are actuated by the jacks 37 so that these counter-racks 36 engage with the adjacent teeth 22 and thereby locking each element 31 of the shuttle 30 on the lifting legs 12.
  • the hull 11 is floated and the legs 12 of the structure 11 are raised.
  • the bridge 2 is brought above the support column 3 of the oil platform 1 and the lifting legs 12 of the structure 10 are again applied to the seabed.
  • the shell 11 is raised to bring it into contact with the elements 31 of the shuttle 30 and these elements 31 are unlocked, then the shell 11, the shuttle 30 and the bridge 2 are lowered in order to put the bridge 2 on the support column 3 .
  • the bridge 2 is fixed on the support column 3 and the hull 11 and the shuttle 30 are lowered to bring said hull 11 floating, then the lifting legs 12 raised.
  • the structure 10 is then removed from the operating site.
  • the structure according to the invention has the advantage of being able to transport the entire deck of the oil platform directly from the operating site to a fixed site where its dismantling can be carried out safely, without risk of pollution of the environment. marine or conversely between a fixed site and an exploitation site where the bridge is fixed on its support column.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ship Loading And Unloading (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Claims (13)

  1. Konstruktion für den Transport, die Installation und die Zerlegung einer Brücke (2) einer ortsfesten Ölplattform (1) für den Offshore-Betrieb,
    dadurch gekennzeichnet, dass sie aufweist:
    - einen schwimmenden U-förmigen Rumpf (11), die mit zumindest drei Hubbeinen (12) des Rumpfes (11) versehen ist und die dafür vorgesehen sind, sich auf dem Meeresboden abzustützen, wobei jedes Hubbein (12) mit mechanischen Verschiebemitteln (20) verbunden ist, und
    - einen Pendelträger (30), der durch den Rumpf (11) entlang der Hubbeine (12) verschiebbar ist und dafür vorgesehen ist, an der Unterseite der Brücke (2) in einer die Brücke tragenden Position angelegt zu werden, wobei der Pendelträger (30) mit Mitteln (36, 37) für das Verriegeln an den Hubbeinen (12) versehen ist.
  2. Konstruktion nach Anspruch 1,
    dadurch gekennzeichnet, dass die mechanischen Verschiebemittel (20) aufweisen, nämlich einerseits zwei gegenüberliegende Platten (21), die von dem entsprechenden Hubbein (12) getragen werden und jeweils an jeder Seitenfläche eine Reihe von Zähnen (22) aufweisen, und andererseits zumindest zwei gegenüber liegende Einheiten (25), die von dem Rumpf (11) getragen werden und jeweils von einem Ritzel (27) gebildet sind, das zur Drehung angetrieben ist und mit einer der Reihen von Zähnen (22) zusammenwirkt.
  3. Konstruktion nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass der Pendelträger (30) von zumindest drei unabhängigen Elementen (31) gebildet ist, die durch Führungsmittel (34) jeweils mit einem Hubbein (12) verbunden sind und Organe (38) aufweisen, um die Brücke (2) in einer die Brücke tragenden Position seitlich zu stabilisieren.
  4. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass jedes Element (31) des Pendelträgers (30) einen senkrechten Schenkel (32), der für die Anordnung an dem Rumpf (11) vorgesehen ist und die Führungsmittel (34) und die Verriegelungsmittel (36, 37) trägt, und einen waagrechten Schenkel (33) zum Tragen der Brücke (2) aufweist.
  5. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass die Führungsmittel gebildet sind von zwei gegenüberliegenden Vorsprüngen (24), die jeweils mit dem senkrechten Schenkel (32) einen Sitz (35) für eine Platte (21) des entsprechenden Hubbeins (12) begrenzen.
  6. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass die Verriegelungsmittel zumindest eine Gegenzahnstange (36) aufweisen, die durch zumindest ein Betätigungsorgan (37) zwischen einer versenkten Position und einer Blockierposition im Eingriff mit einer der Reihen von Zähnen (22) des entsprechenden Hubbeins (12) verschiebbar ist.
  7. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass die Stabilisierungsorgane für jedes Element (31) des Pendelträgers (30) zumindest einen horizontal verschiebbaren Hydraulik- oder Pneumatik-Zylinder (38) aufweisen.
  8. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass jedes Element (21) des beweglichen Trägers (30) zumindest eine Gleitführung (39) aufweist, die an dem senkrechten Schenkel (32) montiert ist und für das Zusammenwirken mit einer Gleitführung (40) vorgesehen ist, die an dem Rumpf (11) montiert ist.
  9. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass der waagrechte Schenkel (33) jedes Elements (31) des beweglichen Trägers (30) an seiner Oberseite elastische Organe (41) für das Aufliegen der Brücke (2) aufweist.
  10. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass der Rumpf (11) Schienen (42) für das horizontale Gleiten der Brücke (2) zwischen der Position, in der sie auf den Elementen (31) des Pendelträgers (30) getragen wird, und einer Position, in der sie außerhalb der Elemente (31) des beweglichen Trägers gelagert ist.
  11. Konstruktion nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass der Rumpf (11) im Bereich seines offenen Teils eine Tür (43, 44) aufweist, die zwischen einer geöffneten Stellung für das Anordnen der Konstruktion unterhalb der Brücke (2) und einer Stellung, die während des Transports der Brücke (2) geschlossen ist, beweglich ist.
  12. Verfahren zum Zerlegen und zum Transportieren einer Brücke (2) einer ortsfesten Ölplattform (1) von einer Betriebsstätte zu einem Pier zum Demontieren der Brücke (2),
    dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    - eine Transportkonstruktion (10) mit einem schwimmenden U-förmigen Rumpf (11), der versehen ist mit zumindest drei Hubbeinen (12) des Rumpfes (11) und einem beweglichen Träger (30), der durch den Rumpf (11) entlang der Hubbeine (12) verschiebbar ist, wird unter der Brücke (2) angeordnet,
    - die Hubbeine (12) werden auf dem Meeresboden aufgesetzt,
    - der Rumpf (11) und der Pendelträger (30) werden angehoben, um den beweglichen Träger (30) in Kontakt mit der Brücke (2) zu bringen,
    - die Brücke (2) wird von ihrer Tragsäule (3) getrennt,
    - die Brücke (2) wird mit Hilfe des Rumpfes (11) und des beweglichen Trägers (30) angehoben,
    - der Pendelträger (30) wird an den Hubbeinen (12) der Konstruktion (10) verriegelt und die Brücke (2) wird auf dem beweglichen Träger (30) seitlich stabilisiert,
    - der Rumpf (11) wird abgesenkt, um ihn zum Schwimmen zu bringen,
    - die Abwärtsbewegung des Rumpfes (11) wird fortgeführt, um als Reaktion die Aufwärtsbewegung der Hubbeine (12) der Konstruktion (10) zu bewirken,
    - die die Brücke (2) tragende Konstruktion (10) wird verschoben, um die Brücke (2) von der Tragsäule (3) zu lösen,
    - die Hubbeine (12) werden auf dem Meeresboden aufgesetzt, und der Rumpf (11) wird angehoben, um ihn in Kontakt mit dem beweglichen Träger (30) zu bringen,
    - der Pendelträger (30) wird an den Hubbeinen (12) der Konstruktion (10) entriegelt,
    - der den beweglichen Träger (30) und die Brücke (2) tragende Rumpf (11) wird abgesenkt, um ihn zum Schwimmen zu bringen,
    - die Hubbeine (12) werden von der Konstruktion (10) abgenommen,
    - die die Brücke (2) tragende Konstruktion wird schwimmend zum Demontagepier (10) gebracht,
    - die Hubbeine (12) werden auf dem Boden aufgesetzt, um den Rumpf (11) zu stabilisieren,
    - die Brücke (2) wird von der Konstruktion (10) gelöst,
    - die Verbindung zwischen der Oberfläche des Rumpfes (11) und dem Pier wird bewirkt und
    - die Brücke (2) wird am Pier abgeladen.
  13. Verfahren zum Transport und zur Installation einer Brücke (2) einer festen Ölplattform (1) von einem Pier zu einer Betriebsstätte,
    dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    - eine Transportkonstruktion (10) mit einem schwimmenden U-förmigen Rumpf (11), der versehen ist mit zumindest drei Hubbeinen (12) des Rumpfes (11) und einem beweglichen Träger (30), der durch den Rumpf (11) entlang der Hubbeine (12) verschiebbar ist, wird in die Nähe des Piers gebracht,
    - die Hubbeine (12) werden auf dem Boden aufgesetzt, um den Rumpf (11) zu stabilisieren,
    - die Verbindung zwischen der Oberfläche des Rumpfes (11) und dem Pier wird hergestellt,
    - die Brücke (2) wird vom Pier auf den beweglichen Träger (30) der Konstruktion (10) übertragen, und die Brücke (2) wird auf dem beweglichen Träger (30) seitlich stabilisiert,
    - die Hubbeine (12) werden hochgefahren,
    - die Konstruktion (10) wird schwimmend in die Nähe der Betriebsstätte gebracht,
    - die Hubbeine (12) werden auf dem Meeresboden aufgesetzt,
    - die Brücke (2) wird mit Hilfe des Rumpfes (11) und des beweglichen Trägers (30) angehoben,
    - der Pendelträger (30) wird an den Hubbeinen (12) der Konstruktion (10) verriegelt, und der Rumpf (11) wird abgesenkt, um ihn zum Schwimmen zu bringen,
    - die Hubbeine (12) werden von der Konstruktion (10) abgenommen,
    - die Brücke (2) wird oberhalb einer Tragsäule (3) der Ölplattform (1) angeordnet, und die Hubbeine (12) werden auf dem Meeresboden aufgesetzt,
    - der Rumpf (11) wird angehoben, um ihn in Kontakt mit dem beweglichen Träger (30) zu bringen, und der Pendelträger (30) wird entriegelt,
    - der Rumpf (11), der Pendelträger (30) und die Brücke (2) werden abgesenkt, um die Brücke (2) auf die Tragsäule (3) zu setzen,
    - die Brücke (2) wird an der Tragsäule (3) befestigt,
    - der Rumpf (11) und der Pendelträger (30) werden abgesenkt, um den Rumpf (11) zum Schwimmen zu bringen,
    - die Hubbeine (12) werden von der Konstruktion (10) abgenommen und
    - die Konstruktion (10) wird von der Betriebsstätte weggebracht.
EP03722695A 2002-03-22 2003-03-06 Konstruktion für den transport, die installation und die zerlegung einer brücke einer festen ölplattform und verfahren zur implementierung der konstruktion Expired - Lifetime EP1487693B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0203637 2002-03-22
FR0203637A FR2837461B1 (fr) 2002-03-22 2002-03-22 Structure de transport, d'installation et de demantelement d'un pont d'une plate-forme petroliere fixe et procede de mise en oeuvre d'une telle structure
PCT/FR2003/000723 WO2003080425A1 (fr) 2002-03-22 2003-03-06 Structure de transport, d'installation et de demantelement d'un pont d'une plate-forme petroliere fixe et procede de mise en oeuvre d'une telle structure

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EP1487693A1 EP1487693A1 (de) 2004-12-22
EP1487693B1 true EP1487693B1 (de) 2007-05-09

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EP03722695A Expired - Lifetime EP1487693B1 (de) 2002-03-22 2003-03-06 Konstruktion für den transport, die installation und die zerlegung einer brücke einer festen ölplattform und verfahren zur implementierung der konstruktion

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US (1) US7513713B2 (de)
EP (1) EP1487693B1 (de)
AT (1) ATE361871T1 (de)
AU (1) AU2003229859A1 (de)
DE (1) DE60313755D1 (de)
DK (1) DK1487693T3 (de)
FR (1) FR2837461B1 (de)
NO (1) NO330967B1 (de)
WO (1) WO2003080425A1 (de)

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Publication number Publication date
FR2837461B1 (fr) 2004-06-18
DE60313755D1 (de) 2007-06-21
NO330967B1 (no) 2011-08-29
AU2003229859A1 (en) 2003-10-08
EP1487693A1 (de) 2004-12-22
NO20043773L (no) 2004-11-17
US7513713B2 (en) 2009-04-07
ATE361871T1 (de) 2007-06-15
US20050158125A1 (en) 2005-07-21
FR2837461A1 (fr) 2003-09-26
DK1487693T3 (da) 2007-09-17
WO2003080425A1 (fr) 2003-10-02

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