EP2640923B1 - Turm in einem wasserkörper zur erschliessung einer flüssigkeit und zugehöriges installationsverfahren - Google Patents

Turm in einem wasserkörper zur erschliessung einer flüssigkeit und zugehöriges installationsverfahren Download PDF

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Publication number
EP2640923B1
EP2640923B1 EP11796754.7A EP11796754A EP2640923B1 EP 2640923 B1 EP2640923 B1 EP 2640923B1 EP 11796754 A EP11796754 A EP 11796754A EP 2640923 B1 EP2640923 B1 EP 2640923B1
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EP
European Patent Office
Prior art keywords
section
buoy
passage
water
intermediate section
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP11796754.7A
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English (en)
French (fr)
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EP2640923A1 (de
Inventor
Ange Luppi
Gilles Cousin
Romain Vivet
René Maloberti
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Technip Energies France SAS
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Technip France SAS
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Publication of EP2640923A1 publication Critical patent/EP2640923A1/de
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Publication of EP2640923B1 publication Critical patent/EP2640923B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0107—Connecting of flow lines to offshore structures

Definitions

  • the present invention relates to a fluid exploitation tower according to the preamble of claim 1:
  • Such towers are intended to convey fluid produced in the bottom of a body of water to the surface, across the body of water.
  • This fluid consists in particular of liquid and / or gaseous hydrocarbons and water collected in production wells formed in the bottom of the body of water.
  • Such a tower generally comprises a lower connecting pipe to the production assembly disposed on the bottom of the body of water, a substantially vertical riser, a buoy holding the riser in its upright position, and an anchor element of a lower point of the riser.
  • the tower further includes a flexible upper link pipe connecting the riser to a floating surface assembly.
  • the hydrocarbons produced by the bottom assembly are conveyed successively through the lower connecting pipe, the riser and the upper connecting pipe to a surface assembly such as a ship, a platform or a barge, where they can be recovered or transported.
  • This type of tower has a relatively simple structure, since its holding in vertical position is ensured exclusively by the anchoring element in the bottom of the expanse of water, and by the tension generated by the buoyancy of the buoy connected to the upper point of the riser.
  • a tower of the aforementioned type is for example described in GB 2,024,766 .
  • the upper flexible pipe is generally connected to the riser via a gooseneck-shaped connection section.
  • This connection is made in the body of water after installation and immersion of the buoy, which makes connection operations very complex.
  • An object of the invention is therefore to obtain a fluid transport tower through a body of water, simple structure, easy to install, especially in great depths, or when the body of water is agitated.
  • the subject of the invention is a tower according to claim 1.
  • the subject of the invention is also a process according to claim 10
  • the method according to the invention may comprise one or more of the features of claims 11 to 14
  • upstream and downstream refer to the normal direction of circulation of a fluid in a pipe.
  • a first fluid operating installation 10 in a body of water 12, installed by an implementation method according to the invention, is shown schematically on the Figure 1 .
  • This installation is intended to convey a fluid collected in the bottom 14 of the body of water 12 to the surface 16 of the body of water.
  • the collected fluid is for example a gaseous or liquid hydrocarbon from a well (not shown) formed in the bottom 14 of the body of water.
  • the body of water 12 is a lake, a sea or an ocean.
  • the depth of the water extent 12, taken between the surface 16 and the bottom 14 opposite the installation 10 is greater than 30 m and is for example between 30 m and 3500 m.
  • the installation 10 comprises a fluid production assembly 18 situated on the bottom of the body of water, hereinafter referred to as the "bottom assembly", a first tower 20 according to the invention, and a surface assembly 22 intended to recover and store the fluid collected in the production assembly 18 conveyed through the tower 20.
  • the bottom assembly 18 comprises for example at least one wellhead and / or a production line (not shown) located on the bottom 14 of the body of water.
  • the surface assembly 22 is a floating assembly. It is for example formed by a ship, a barge, a floating platform, or a floating unit for the recovery, storage and treatment of hydrocarbons, designated by the acronym "FPSO”.
  • the surface assembly is alternatively a floating storage and regasification unit designated by the acronym "FSRU”.
  • the surface assembly 22 floats on the body of water in the vicinity of the bottom assembly 18.
  • the tower 20 comprises a fluid transport pipe 24 connecting the bottom assembly 18 to the surface assembly 22, an anchoring element 25 of the pipe 24, fixed in an anchoring region on the bottom 14, and a buoy 26 for holding under tension at least one intermediate section of the transport pipe 24 in a substantially vertical configuration in the body of water 12.
  • the transport pipe 24 comprises, from bottom to top on the Figure 1 , a lower section 28 for connection to the bottom assembly 18, an intermediate section formed by a substantially vertical riser 30, a connection section 32 and an upper section 34 for connection to the surface assembly 22.
  • the transport pipe 24 is flexible over substantially its entire length, taken between the bottom assembly 18 and the surface assembly 22, with the possible exception of the connecting section 32.
  • the lower section 28 is formed for example by a lower connecting hose 36 extending in a bent or inclined manner with respect to the bottom 14 of the body of water 12.
  • the lower hose 36 is connected upstream to the assembly of bottom 18, and is connected downstream to the riser 30.
  • the riser 30 extends substantially vertically along a vertical axis AA 'in the body of water 12, between a lower upstream point 38, connected to the anchoring element 25 and an upper downstream point 40, connected to the buoy 26.
  • the riser 30 is formed by a flexible pipe 41 over substantially its entire length.
  • the flexible pipe 41 may be a "bundle" type composite bundle comprising at least one fluid transport tube and a set of electrical or optical cables suitable for transporting electrical or hydraulic power, or information between the bottom 14 and the surface 16 of the body of water
  • a flexible pipe has a relatively small minimum bending radius ("MBR" or "bending radius”), for example a few meters, which makes it particularly suitable for being wound and unrolled in a reversible manner without deformation.
  • MRR minimum bending radius
  • the length of the riser 30, taken between the upper point 40 and the lower point 38 is greater than 20 m and is for example between 500 m and 3500 m.
  • connection means on the connection section 32 are for example formed by a connection flange intended to be fixed on a corresponding flange of the section 32.
  • the riser 30 is provided, in the vicinity of the downstream point 40, with a first guide member 42A from the upstream point in the buoy 26 and advantageously with a first stiffener 42B intended to prevent excessive torsion of the riser 30 during his commitment through the buoy 26.
  • the guide member 42A is mounted around the riser 30. It is formed for example by at least one vertebra fixed around the flexible pipe 41 forming the riser 30.
  • the stiffener 42B is releasably fixed around the flexible pipe 41 forming the riser 30. As will be seen below, it is adapted to engage the buoy 26 and to allow the sliding of the flexible pipe through the stiffener 42B.
  • connection section 32 is formed by a rigid pipe section. As will be seen below, this section 32 is carried by the buoy 26. It has a general shape of U returned or omega. It thus has an upstream end 44A provided with an upstream connecting means to the riser 30, in particular an upstream connection flange and a downstream end 44B provided with a downstream connection means to the upper section 34, in particular a flange. downstream connection.
  • the ends 44A, 44B are arranged opposite the buoy 26.
  • connection section 32 is formed by a flexible pipe as described above, provided for example with curvature limiters or buoyancy elements.
  • the connecting portion 32 is fully immersed in the body of water 12 under the surface 16, once the tower 20 is in place.
  • the upper portion 34 is formed by an upper hose 50 extending between the connector 32 and the surface assembly 22.
  • the upper hose 50 has a catenary configuration, substantially J.-shaped.
  • the upper hose 50 is deformable to absorb the movements of the surface assembly 22 due to disturbances of the body of water such as swell, current or wind.
  • the section 34 thus substantially prevents the transmission of these movements from the surface assembly 22 to the riser 30 whose downstream point 40 remains substantially immobile in the body of water.
  • the upper section 34 extends between an upstream end 51A fixed on the downstream end 44B of the connection section 32 and a downstream end 51B integral with the surface assembly 22.
  • the upper section 34 carries connecting means on the intermediate section 32 formed for example by a connecting flange.
  • the upper section 34 is provided with a second guide member 52A and a second stiffener 52B which are structures similar respectively to the structure of the first guide member 42A and that of the first stiffener 42B.
  • the lower section 28, the riser 30, the connection section 32, and the upper section 34 internally define a continuous fluid flow passage 54 extending between the bottom assembly 18 and the surface assembly 22 to allow the transport of the fluid between these sets 18, 22.
  • the anchoring element 25 comprises an anchoring member 60 fixed in the anchoring region on the bottom 14 of the water body 12 and a flexible line 62 connecting the anchoring member 60 at the upstream point 38 of the riser.
  • the anchoring member 60 is for example formed by a battery housed in the bottom 14 of the body of water or by a suction anchor.
  • the flexible line 62 extends vertically along the axis A-A 'between the anchoring element 60 and the upstream point 38.
  • the anchoring element 25 is advantageously provided with a return member 64 of a flexible traction line.
  • the organ the deflection 64 is for example formed by a pulley rotatably mounted on the anchoring member 60.
  • the buoy 26 is of substantially flat shape when the tower 20 is mounted in the body of water 12.
  • the buoy 26 thus has a substantially horizontal lower surface 66A, a substantially horizontal upper surface 66B and a peripheral surface 66C connecting the surfaces 66A, 66B to each other.
  • the buoy 26 has in particular a height H, taken along the axis A-A ', less than 1.5 times its maximum transverse dimension D, taken perpendicular to the axis A-A' between the surfaces 66A, 66B.
  • the buoy 26 is preferably cylindrical in shape of axis A-A '.
  • the height H of the buoy is advantageously less than 1.5 times, in particular less than or equal to 1 times the maximum transverse dimension of the buoy, which in this example is the diameter D of the cylinder.
  • the buoy 26 comprises a buoyancy chamber 70 internally defining at least one sealed compartment 72 adapted to be selectively filled with gas or liquid, and means 74 for selective filling of liquid and gas in the compartment 72.
  • the buoy 26 further comprises, in this example, means 76 for fixing the connecting section 32 to fix the section 32 on the upper surface 66B.
  • the buoyancy chamber 70 of the buoy delimits a first through-passage 78A into which the riser 30 is engaged and a second through-passage 78B into which the upper hose 50 is engaged.
  • Each passage 78A, 78B opens up into the upper surface 66B through a respective upper opening 80A, 80B.
  • Each passage 78A, 78B opens downward through a respective lower opening 82A, 82B, located at or below the lower surface 66A.
  • the passages 82A, 82B thus pass through the caisson 70 of the buoy 26 over the entire height of the buoy 26, taken between the lower surface 66A and the upper surface 66B.
  • the upper opening 80A of the first passage 78A opens opposite the upstream end 44A of the connection section 32.
  • the upper opening 80B of the second passage 78B opens opposite the downstream end 44B of the connecting section 32.
  • first passage 78A extends vertically, along the axis AA 'of the riser 30, parallel to the axis of the buoy 26.
  • the second In this example, passage 78B extends along an axis BB 'inclined relative to axis AA' of first passage 78A at an angle ⁇ , for example between 30 ° and 65 °.
  • first passage 78A and the second passage 78B are respectively formed in guide tubes 83A, 83B mounted in the casing 70.
  • Each tube 83A, 83B has an upper portion 84A, 84B of substantially constant section, in particular complementary to the section of the respective guide member 42A, 52A and a bottom portion 85A, 85B flared for receiving the respective stiffener 42B, 52B.
  • the lower portion 85A, 85B protrudes under the buoy 26 away from the lower surface 66A.
  • the tubes 83A, 83B are commonly called “I-tubes” or “I Tubes” in English.
  • Each compartment 72 extends into the box 70 around the passages 78A, 78B.
  • the filling means 74 are adapted to selectively introduce gas or liquid into the or each compartment 72 to selectively increase or decrease the buoyancy of the buoy 26.
  • the upper part of the riser 30 is engaged in the first passage 78A from bottom to top.
  • the first stiffener 42B is received in the flared lower portion 85A of the tube 83A and the first guide member 42A is received in the upper portion 84A of the tube 83A.
  • the downstream point 40 protrudes beyond the upper surface 66B from the first passage 78A to be connected to the upstream end 44A.
  • the upstream portion of the hose 50 is engaged from bottom to top in the second passage 78B.
  • the second stiffener 52B is received in the bottom 85B flared portion of the tube 83B.
  • the second guide member 52A is complementarily received in the upper portion 84B of the tube 83B.
  • the upstream end 51A of the hose 50 protrudes beyond the upper surface 66B out of the second passage 78B to be connected to the downstream end 44B of the connecting section 32.
  • the riser 30 passes through the buoy 26 from bottom to top between the lower opening 82A and the upper opening 80A of the first passage 78A and the hose 50 passes through the buoy 26 from bottom to top between the lower opening 82B and the upper opening 80B of the second passage 78B.
  • the riser 30 has a substantially vertical configuration along the axis A-A '.
  • the connection section 32 has a U-shaped configuration headed down.
  • the upper section 34 has a chain-shaped or U-shaped configuration directed upwards.
  • This method is implemented using a ship 90 for laying the transport pipe 24, and using at least one towing vessel 92A, 92B of the buoy 26, separate from the laying ship 90.
  • the process is carried out using two towing vessels 92A, 92B.
  • the pipe members 36, 42 for forming the conveying pipe 24 are brought into the vicinity of the bottom assembly 18 by means of the laying ship 90 and the pipe element 50 is brought to the assembly. surface 22.
  • the lower hose 36 and the flexible pipe 41 are transported by the laying ship 90 being for example wound on a laying drum or in a basket.
  • the anchoring element 25 is installed in the bottom 16 of the body of water 12 in the vicinity of the bottom assembly 18.
  • the anchoring member 60 is fixed in the bottom 14 of the water body 12.
  • the buoy 26 is towed by being partially submerged, with its upper surface 66B located outside the water extent 12 and its submerged lower surface 66A, between a position remote from the anchoring element 25 and a positioning position located substantially opposite and above the anchoring element 25.
  • the buoy 26 extends substantially horizontally with its vertical axis A-A '.
  • the buoy 26 having a substantially flat shape, it is very insensitive to the movements of the surface 16 of the body of water 12, and in particular to the swell, the currents or the winds, so that it can be transported from safe manner by being only partially immersed in the body of water 12, with towing vessels 92A, 92B. It is also a workstation thanks to its large flat upper surface 66B.
  • the towing distance of the buoy 26, which horizontally separates the position remote from the positioning position is greater than several hundred meters, or even several hundred kilometers.
  • the buoy 26 is embarked on a partially submersible barge, then is immersed in water by immersion of the barge, before being towed.
  • buoy 26 occupies its positioning position represented on the Figure 2 it is maintained in a horizontal position by the towing vessels 92A, 92B using deployable mooring lines 94.
  • a traction device 96 is then mounted on the buoy 26, for example on its upper surface 66B.
  • This traction device 96 comprises for example a winch 96 provided with a deployable line 98 traction.
  • the distance between the laying ship 90 of the buoy 26 being relatively high, for example greater than 50 m, the radius of curvature of the flexible pipe 41 in this configuration is high to prevent damage to the flexible pipe 41.
  • the stiffener 42B then stalls in the lower portion 85A of the tube 83A.
  • the stiffener 42B is released from the flexible pipe 30.
  • the rise of the downstream point 40 continues by sliding of the flexible pipe 30 in the stiffener 42B.
  • the guide member 42A and the downstream point 40 thus rise along the first passage 78A from the lower opening 82A to the upper opening 80A of the first passage, before the downstream point 40 is extracted from the first passage 78A through the upper opening 80A.
  • the downstream point 40 is then fixed on the upstream end of the connecting section 32, either by screwing and / or bolting the flanges together, or by arranging a clamp around the flanges.
  • the pulling line 98 is then disconnected from the downstream point 40.
  • the winch 96 is then moved in the vicinity of the upper opening 80B of the second passage 78B.
  • another winch 96 is present in the vicinity of the second passage 78B.
  • the winch 96 is then activated to bring the downstream end 51A of the buoy 26, retracting an increasing length of the line 98 on the winch 96. Simultaneously, an increasing length of the upper hose 50 is deployed out of the entire surface 22.
  • the hose 50 adopts a substantially catenary or U-shaped shape between the surface assembly 22 and the buoy 26.
  • the ends 44B, 51A are then fixed to one another for example by screwing and / or bolting the flanges together, or by placing a clamp.
  • connection of the hose 50 on the section 32 is carried out directly on the buoy 26, taking advantage of the working surface offered by the upper surface 66B of the buoy 26.
  • the buoy 26 Given its size, the buoy 26 is also extremely stable which makes the operations on the buoy 26 very safe.
  • connection steps being performed above the surface 16 of the body of water 12 at the surface, the mounting of the tower 20 is therefore very simple to implement.
  • the seal of the connection can be tested on the surface, before immersion of the buoy 26, which does not require to raise the buoy 26 when the seal is not adequate.
  • the pulling line 98 is then disconnected from the downstream end 51A and the winch 96 is advantageously dismounted away from the buoy 26.
  • the upstream point 38 is fixed on the anchoring element 25, for example by a method of the type described in the patent application. WO 2009/118467 of the Applicant.
  • the upstream point 38 is lowered into the body of water 12 until the intermediate section 30 occupies a substantially vertical configuration.
  • the upstream point 38 is connected to a traction line 100 deployed from the laying ship 90.
  • the traction line 100 is engaged around the deflection member 64. It thus has a first vertical section 102 extending between the upstream point 38 and the deflection member 64 and a second inclined section 104 extending between the deflection member 64 and the laying ship 90.
  • the mooring lines 94 are released and the filling means 74 are activated to introduce liquid into the compartments 72 to reduce the buoyancy of the buoy 26.
  • the traction line 100 is retracted into the laying ship 90 to pull the downstream point 38 towards the anchoring member 60 and thus guide the positioning of the riser 30 towards the anchoring element 25.
  • the buoy 26 is then lowered and immersed completely in the body of water 12 to a depth greater than several tens of meters, in a region of the body of water 12 which is not affected by the swell and waves.
  • the buoy 26 retains its horizontal orientation during the descent, with its axis A-A 'substantially vertical along its height.
  • the flexible anchoring line 62 is then attached to the upstream point 38 and to the anchoring element 60. Then, the lower hose 36 is descended from the laying ship 90 to be connected on the one hand to the upstream point 38, and on the other hand to the bottom assembly 18.
  • the buoyancy of the buoy 26 is possibly modified to apply between the downstream point 40 and the upstream point 38, via the buoy 26, a pulling force directed upwards, this force being compensated by the force of held by the anchor line 62.
  • the riser 30 then extends vertically along the axis AA 'between its upstream point 38 and its downstream point 40.
  • the continuous passage 54 of hydrocarbon circulation between the bottom assembly 18 and the surface assembly 22 is established successively through the lower section 28, the riser 30, the connection section 32 and the section. 34.
  • the fluid collected by the bottom assembly 18 is then transported to the surface assembly 22 through the passage 52.
  • a second installation 120 according to the invention is represented on the Figure 6 .
  • the tower 20 of the second installation 120 comprises a buoy 26 which has a second passage 78B substantially vertical through the buoy 26.
  • the second passage 78 is delimited advantageously by a tube 83A J-shaped or "J tube” in English.
  • the tube 83B thus has an upper portion 84B substantially parallel to the axis AA 'of the first passage 78A and a lower portion 85B inclined axis relative to the upper portion 84B, in particular an angle ⁇ of between 30 ° and 65 ° °.
  • the inclined lower portion 85B projects downward from the lower surface 66A of the buoy 26.
  • the tower 20 of the second installation 120 is otherwise identical to the tower 20 of the first installation 10.
  • the intermediate portion 30 has no stiffener 42B and a guide member 42A
  • the upper portion 34 has no stiffener 52B and a guide member 52A.
  • the buoy 26 when setting up the tower 20, the buoy 26 is immersed in the body of water 12 while maintaining the U-shaped configuration of the intermediate section 30, between the laying ship 90 and the buoy 26 .
  • the downstream point 38 is moved under the buoy 26 via a deployment line (not shown), after immersion of the buoy.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Claims (14)

  1. Turm (20) zur Förderung von Fluid durch einen Wasserbereich (12) hindurch, des Typs aufweisend:
    - eine Leitung (24) zum Transport von Fluid, die vorgesehen ist, um in den Wasserbereich (12) eingetaucht zu sein, wobei die Leitung zum Transport (24) aufweist einen unteren Abschnitt (28), der vorgesehen ist, um mit einer Bodeneinrichtung (18) verbunden zu sein, die Fluid produziert, einen flexiblen, oberen Abschnitt (34), der vorgesehen ist, um mit einer Oberflächeneinrichtung (22) verbunden zu sein, und einen Zwischenabschnitt (30), der zwischen dem flexiblen, oberen Abschnitt (34) und dem unteren Abschnitt (28) angeordnet ist,
    - ein Element (25) zur Verankerung der Leitung zum Transport (24) im Boden (14) des Wasserbereichs (12), das mit einem vorderen Punkt (38) des Zwischenabschnitts (30) verbunden ist,
    - eine Boje (26), die vorgesehen ist, um komplett unter die Oberfläche des Wasserbereichs (12) eingetaucht zu sein, wobei die Boje (26) mit einem hinteren Punkt (40) des Zwischenabschnitts verbunden ist zum Aufrechterhalten des Zwischenabschnitts (30) in der Anordnung zwischen dem hinteren Punkt (40) und dem vorderen Punkt (38) in einer im Wesentlichen vertikalen Konfiguration unter Spannung,
    wobei die Boje (26) eine Höhe hat, genommen entlang einer vertikalen Achse (A-A'), die kleiner als das 1,5-fache ihrer maximalen Querabmessung ist, wobei die Boje (26) eine erste Durchgangspassage (78A) begrenzt, in welche der Zwischenabschnitt (30) eingreift,
    wobei die Boje (26) eine zweite Durchgangspassage (78B) begrenzt, die von der ersten Durchgangspassage (78A) verschieden ist, dadurch gekennzeichnet, dass die zweite Durchgangspassage (78B) den oberen Abschnitt (34) aufnimmt, wobei der Turm (20) einen Verbindungsabschnitt (32) aufweist, der den oberen Abschnitt (34) mit dem Zwischenabschnitt (30) verbindet.
  2. Turm (20) gemäß Anspruch 1, dadurch gekennzeichnet, dass jede Durchgangspassage (78A, 78B) eine untere Öffnung (82A, 82B) und eine obere Öffnung (80A, 80B) begrenzt, wobei der Zwischenabschnitt (30) in die erste Durchgangspassage (78A) eingreift ausgehend von der unteren Öffnung (82A) zu der oberen Öffnung (80A) hin, wobei der obere Abschnitt (34) durch die Durchgangspassage (78B) hindurch im Eingriff ist von der unteren Öffnung (82B) aus zu der oberen Öffnung (80B) hin, wobei der Verbindungsabschnitt (32) über der Boje (26) angeordnet ist.
  3. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Boje eine obere Fläche (66B) hat, die den Verbindungsabschnitt (32) trägt, wobei der Verbindungsabschnitt (32) vorteilhafterweise von einem starren Leitungsrohr gebildet ist.
  4. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungsabschnitt (32) ein erstes Mittel zur Fixierung des Zwischenabschnitts (30) hat, das gegenüberliegend zu einer oberen Öffnung (80A) der ersten Durchgangspassage (72A) mündet, wobei der Verbindungsabschnitt ein zweites Mittel zur Fixierung des oberen Abschnitts (34) hat, das gegenüberliegend zu einer oberen Öffnung (80B) der zweiten Durchgangspassage (78B) mündet.
  5. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die erste Durchgangspassage (78A) im Wesentlichen vertikal durch die Boje (26) hindurch erstreckt und sich die zweite Durchgangspassage (78B) im Wesentlichen vertikal durch die Boje (26) hindurch erstreckt.
  6. Turm (20) gemäß irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sich die erste Durchgangspassage (78A) im Wesentlichen vertikal durch die Boje (26) hindurch erstreckt und sich die zweite Durchgangspassage (78B) bezüglich der ersten Durchgangspassage (78A) in geneigter Weise erstreckt.
  7. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Zwischenabschnitt (30) von einer flexiblen Rohrleitung gebildet ist, wobei die flexible Rohrleitung in der Lage ist, auf eine Trommel oder einen Rahmen in reversibler Weise ohne signifikante plastische Deformation aufgerollt und davon abgerollt zu werden.
  8. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Boje (26) ein erstes Führungsrohr (83A) hat, das die erste Durchgangspassage (78A) begrenzt, und ein zweites Führungsrohr (83B) hat, das die zweite Durchgangspassage (78B) hat, wobei wenigstens eines von dem ersten Führungsrohr und dem zweiten Führungsrohr ein Rohr in I-Form oder ein Rohr in J-Form ist.
  9. Turm (20) gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens einer von dem Zwischenabschnitt (30) und dem oberen Abschnitt (34) mit wenigstens einem Führungsorgan (42A, 52A) ausgestattet ist, das bezüglich des besagten Abschnitts (30, 34) radial vorsteht zum Führen der Verlagerung des besagten Abschnitts durch die betreffende Durchgangspassage (78A, 78B) hindurch.
  10. Verfahren zur Montage eines Turms (20) zur Förderung von Fluid durch einen Wasserbereich (12) hindurch, des Typs aufweisend die folgenden Schritte:
    - Bringen einer Boje (26) in den Wasserbereich (12) im Wesentlichen gegenüberliegend zu einem Verankerungsbereich am Boden (14) des Wasserbereichs (12),
    - Verbinden eines hinteren Punkts (40) eines Zwischenabschnitts (30) einer Leitung zum Transport von Fluid (24) mit der Boje (26),
    - Verbinden eines vorderen Endes (51A) eines flexiblen, oberen Abschnitts (34) der Leitung zum Transport von Fluid (24) mit der Boje (26), der vorgesehen ist, um mit einer Oberflächeneinrichtung (22) verbunden zu werden,
    - vollständiges Eintauchen der Boje (26) unter die Oberfläche des Wasserbereichs (12) vor oder nach dem Schritt des Verbindens des hinteren Punkts (40),
    - Verankern eines vorderen Punkts (38) des Zwischenabschnitts (30) an einem Verankerungselement (25), das im Boden (14) des Wasserbereichs (12) im Verankerungsbereich fixiert ist,
    - unter Spannung Setzen des Zwischenabschnitts (30) der Leitung zum Transport (24) zwischen dem hinteren Punkt (40) und dem vorderen Punkt (38) unter dem Effekt der Schwimmfähigkeit der Boje (26) zum Aufrechterhalten des Zwischenabschnitts (30) im Wesentlichen vertikal im Wasserbereich (12),
    - Verbinden eines unteren Abschnitts (26) der Leitung zum Transport von Fluid (24) mit dem Zwischenabschnitt (30), der vorgesehen ist, um mit einer Bodeneinrichtung (12) verbunden zu werden, die Fluid produziert,
    - Verbinden des Zwischenabschnitts (30) und des oberen Abschnitts (34) mittels eines Verbindungsabschnitts (32), wobei die Boje (26) eine Höhe hat, genommen entlang einer vertikalen Achse (A-A'), die kleiner als das 1,5-fache ihrer maximalen Querabmessung ist, genommen quer zur vertikalen Achse (A-A'), wobei der Schritt des Verbindens des Zwischenabschnitts (30) den Eingriff des Zwischenabschnitts (30) durch eine erste Durchgangspassage (78A) hindurch aufweist, die durch die Boje (26) hindurch ausgebildet ist, dadurch gekennzeichnet, dass der obere Abschnitt (34) durch eine zweite Durchgangspassage (78B) hindurch eingreift, die von der ersten Durchgangspassage (78A) verschieden ist, um mittels des Verbindungsabschnitts (32) mit dem Zwischenabschnitt (30) verbunden zu sein.
  11. Verfahren gemäß Anspruch 10, dadurch gekennzeichnet, dass der Schritt des Verbindens des Zwischenabschnitts (30) und des oberen Abschnitts (34) mittels des Verbindungsabschnitts (32) realisiert wird vor dem Schritt des Eintauchens der Boje (26) unter den Wasserbereich (12).
  12. Verfahren gemäß Anspruch 10 oder 11, dadurch gekennzeichnet, dass die erste Durchgangspassage (78A) und die zweite Durchgangspassage (78B) jede eine untere Öffnung (82A, 82B) und eine obere Öffnung (80A, 80B) begrenzt, wobei der Zwischenabschnitt (30) in die erste Durchgangspassage (78A) eingreift ausgehend von der unteren Öffnung (82A) zu der oberen Öffnung (80A) hin, wobei der obere Abschnitt (34) in die zweite Durchgangspassage (78B) eingreift ausgehend von der unteren Öffnung (82B) zu der oberen Öffnung (80B) hin.
  13. Verfahren gemäß irgendeinem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass der Zwischenabschnitt (30) über im Wesentlichen seine ganze Länge zwischen dem hinteren Abschnitt (40) und dem vorderen Abschnitt (38) flexibel ist, wobei der Zwischenabschnitt (30) progressiv im Wasserbereich (12) ausgebreitet wird zwischen dem hinteren Punkt (40), der an der Boje (26) fixiert ist, und einer Verlege-Struktur (90), die auf dem Wasserbereich (12) schwimmt, während des Schritts des Ausbreitens, wobei der Zwischenabschnitt (30) von der Verlege-Struktur (90) aus abgerollt wird, auf welcher er transportiert wird, wobei er auf eine Trommel oder auf einen Rahmen aufgerollt ist.
  14. Verfahren gemäß irgendeinem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass es aufweist einen Schritt des progressiven Belastens der Boje (26) nach den Schritten des Verbindens des Zwischenabschnitts (30) und des oberen Abschnitts (34) mit dem Verbindungsabschnitt (32), um den vorderen Punkt (38) zu dem Verankerungselement (25) hin abzusenken, wobei das Verfahren vorteilhafterweise aufweist das Ziehen des vorderen Punkts (38) zu dem Verankerungselement (25) hin mittels eines Zugseils (100), das mit einem Umlenkorgan (64) im Eingriff ist, das von dem Verankerungselement (25) getragen wird.
EP11796754.7A 2010-11-17 2011-11-17 Turm in einem wasserkörper zur erschliessung einer flüssigkeit und zugehöriges installationsverfahren Not-in-force EP2640923B1 (de)

Applications Claiming Priority (2)

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FR1059444A FR2967451B1 (fr) 2010-11-17 2010-11-17 Tour d'exploitation de fluide dans une etendue d'eau et procede d'installation associe.
PCT/FR2011/052685 WO2012066250A1 (fr) 2010-11-17 2011-11-17 Tour d'exploitation de fluide dans une étendue d'eau et procédé d'installation associé.

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EP2640923B1 true EP2640923B1 (de) 2016-02-10

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WO2012066250A1 (fr) 2012-05-24
AU2011331012B2 (en) 2017-03-09
FR2967451B1 (fr) 2012-12-28
BR112013012172A2 (pt) 2016-08-16
US20130277061A1 (en) 2013-10-24
FR2967451A1 (fr) 2012-05-18
AP2013006917A0 (en) 2013-06-30
EP2640923A1 (de) 2013-09-25
US9322222B2 (en) 2016-04-26
AU2011331012A1 (en) 2013-07-04

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