EP1798342A2 - Vorrichtung zum Zerlegen und Transportieren einer Ölbohrplattform - Google Patents

Vorrichtung zum Zerlegen und Transportieren einer Ölbohrplattform Download PDF

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Publication number
EP1798342A2
EP1798342A2 EP07002269A EP07002269A EP1798342A2 EP 1798342 A2 EP1798342 A2 EP 1798342A2 EP 07002269 A EP07002269 A EP 07002269A EP 07002269 A EP07002269 A EP 07002269A EP 1798342 A2 EP1798342 A2 EP 1798342A2
Authority
EP
European Patent Office
Prior art keywords
shuttle
support column
hull
lifting
bridge
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.)
Granted
Application number
EP07002269A
Other languages
English (en)
French (fr)
Other versions
EP1798342B1 (de
EP1798342A3 (de
Inventor
Pierre-Armand Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technip Energies France SAS
Original Assignee
Technip France SAS
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 Technip France SAS filed Critical Technip France SAS
Publication of EP1798342A2 publication Critical patent/EP1798342A2/de
Publication of EP1798342A3 publication Critical patent/EP1798342A3/de
Application granted granted Critical
Publication of EP1798342B1 publication Critical patent/EP1798342B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • 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
    • B63B35/28—Barges or lighters
    • 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
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • 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
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • 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
    • 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
    • E02B2017/0039—Methods for placing the offshore structure
    • E02B2017/0047—Methods for placing the offshore structure using a barge
    • 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

Definitions

  • the present invention relates to a structure for transporting, installing and dismantling a fixed offshore oil platform comprising framework elements formed in particular by a bridge and at least one support column.
  • It also relates to a method for transporting, installing and dismantling a support column 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 seabed.
  • the first method consists of using lifting cranes mounted on barges to deposit the support column on the seabed and to transfer the deck of the platform of the transport boat onto this 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 that may require the bridge to be made up of several elements, which significantly increases the cost of manufacturing this bridge and the cost of installing and dismantling the bridge. of the oil rig.
  • the second limitation lies in the fact that this method requires a relatively large window of favorable time to be able to carry out the various operations of transfer at sea in good conditions.
  • the second method is to install the support column on the seabed by lifting cranes and install the deck of the oil platform in a single block on the support column by floating above it. Then, the bridge is disposed on this support column either by a ballast / deballasting system, or by a mechanical 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.
  • ballast / deballasting system is the use of a mechanical system to raise or lower the deck of the platform oil. 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 propose a structure for transporting, installing or dismantling a fixed offshore oil platform which is designed to simplify and reduce the duration of dismantling of said platform, while by saving a lot of time and avoiding all risks of environmental pollution and increasing the security of the personnel responsible for carrying out the various operations.
  • the invention also relates to a method of dismantling and transport and a method of transporting and installing a support column.
  • FIG. 1 there is shown schematically a fixed oil platform generally designated by the reference 1 and comprising frame elements formed in particular by a bridge 2 provided with operating equipment and usual living quarters and a support column 3 on The base of this column 3 is anchored to the seabed 4 by anchoring members 5.
  • the structure 10 comprises a U-shaped floating hull 11 equipped with lifting legs 12 of this hull 11 and adapted to bear on the seabed 4.
  • the hull 11 comprises two lateral portions 11a. and a connecting portion 11b connecting the two side portions 11a.
  • the shell 11 is equipped with three lifting legs 12 distributed in a triangle, one leg 12 being placed on each side portion 11a and one leg 12 being placed on the connecting portion 11b.
  • the shell 11 may be equipped with four lifting legs 12 arranged in pairs on each lateral branch 11a of said shell 11.
  • 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 20 for moving the shell 11.
  • the mechanical displacement means 20 are housed in a supporting frame 16, also called by the specialists "Jack-house", which is supported by the hull 11.
  • each frame 14 of each leg 12 has two opposite plates 21 each having, on each side face, a series of teeth 22 forming with the two members 14 a double rack.
  • the mechanical means of displacement 20 of the shell 11 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 six pinions 27 each driven in rotation 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 independently of the shell 11 of the structure 10 and which is intended to move the support column 3, as will be seen later.
  • the shuttle 30 is composed of independent elements 31 whose number corresponds to the number of legs 12 of the structure 10.
  • the shuttle 30 is composed of three independent elements 31, each associated with a lifting leg 12.
  • each element 31 of the shuttle 30 comprises mechanical means 40 for driving on the lifting leg 12 corresponding, independently of the shell 11 of the structure 10, as well as means of connection with the element d frame 2 or 3 to move from platform 1.
  • the element 31 comprises a vertical guide branch 32 on the supporting framework 16 of the shell 11 and which is thus supported on a vertical wall 16a of this supporting framework 16.
  • the element 31 also comprises a horizontal branch 33 which has a central opening 34 for the passage of the leg 12 corresponding.
  • This horizontal branch 33 is disposed at the upper part of the vertical branch 32 and supports the mechanical means 40 driving said element 31 on the leg 12.
  • the mechanical means 40 for driving each element 31 on the corresponding leg 12 operate independently of the mechanical means 20 for moving the shell 11 and these means 40 of the set of elements 31 operate in synchronization with each other so as to to obtain the same displacement of each element 31 on the corresponding leg 12.
  • the mechanical means 40 for moving each element 31 of the shuttle 30 comprise several sets 41 distributed on either side of each plate 21 of the frame 14, depending on the height thereof.
  • Each set 41 comprises a geared motor unit 42 driving a pinion 43 which meshes with a series of teeth 22 of the corresponding plate 21.
  • the two series of teeth 22 of each plate 21 are associated with four pinions 43 each rotated by a geared motor unit 42.
  • the vertical wall 16a of the supporting frame 16 forming a guide for the vertical displacement of the corresponding element 31 is extended, at its upper part, by a vertical plate 17 on which the element 31 slides so as to increase the height vertical displacement of this element 31.
  • the means for moving the bridge 2 of the oil platform 1 is constituted by a horizontal support plate 50 of the bridge 2 during its transport, as will be seen later.
  • the means for moving the support column 3 consist of a linear and vertical traction member 51 formed by a chain or a cable.
  • the traction member 51 is constituted by a chain.
  • the chain 51 can be wound on a drum 52 placed in the shell 11 of the structure 10 and comprises a first rising portion 51a which passes through the supporting frame 16 of the shell 11, the horizontal branch 33 of the element 31 and opens at the upper part of the vertical branch 31 of the element 30.
  • the chain 51 passes on a return pulley 53 and has a descending portion 51b which passes through the vertical leg 32 of the element 31 and runs along the hull 11 where it is guided by a pulley 54 attached to the hull 11.
  • the end of the chain 51 is equipped with a hooking system 55, of known type, on the support column 3 during its movement.
  • the chain 51 is associated with two locking assemblies 60 and 65, one 60 being mounted on the element 31 and the other 65 being mounted on the shell 11. These two assemblies 60 and 65 operate independently of one another. other thus making it possible to secure the chain 51 with the element 31 or with the shell 11.
  • FIG. 6 we will describe an example of a locking assembly for example the locking assembly 60, the locking assembly 65 being identical.
  • the locking assembly 60 is formed of two subsets, 61a and 61b respectively, identical and symmetrical.
  • the first subassembly 61a is formed by a latch 62a pivotably mounted on a base 63a about a horizontal axis 64a carried by the base 63a.
  • the tilting of the lock 62a between a raised position and a lowered position is controlled by a jack 65a, for example hydraulic or pneumatic, one end of which is secured to the base 63a and whose other end is integral with the lock 62a.
  • the second subassembly 61b is constituted by a latch 62b mounted tiltable on a base 63b about a horizontal axis 64b carried by said base 63b.
  • the tilting of the lock 62b between a lowered position and a raised position is controlled by a jack 65b, for example hydraulic or pneumatic, one end of which is secured to the base 63b and whose other end is secured to the lock 62b.
  • the displacement of the locks 62a and 62b is simultaneous.
  • the latches 62a and 62b block the chain 51, as shown in FIG. 6.
  • the opening of the "U" of the shell 11 of the structure 10 may be closed off by an independent branch 70 which may carry a crane 71 for moving modules of the oil platform 1 or of another platform. form next to which the transport structure 10 can be installed.
  • this branch 70 can be installed by a barge, not shown, ballastable / deballastable and can be locked and unlocked from the hull 11 of the structure 10.
  • the structure 10 allows the dismantling of a support column 3.
  • the structure 10 is floated around the support column 3, as shown in FIG. 8A.
  • the upper end of the section of the support column 3 is hooked by cables 56 to the shell 11 and these cables 56 are wound on drums 57 so as to allow their extension.
  • the locking assembly 60 of each element 31 of the shuttle 30 is actuated by tilting the latches so as to secure the chains 51 and, as a result, the support column 3 of these elements. lock 65 are in the open position to allow the sliding of the chains 51.
  • the elements 31 of the shuttle 30 are lifted by rotating the pinions 43 by means of the geared motor units 42 and meshing with the series of teeth 22 of the plates 21 of each lifting leg 12. Because of the solidarity chains 51 with these elements 31, the section of the support column 3 is also raised. During this movement, the elements 31 of the shuttle 30 are first guided towards the vertical wall 16a of the supporting frame 16 of the shell 11 and the plates 17, as shown in FIG. 8C. After this first lifting operation of the section of the support column 3, the locking assemblies 65 are actuated in order to lock the chains 51 and to secure these chains 51 of the shell 11. The locking assemblies 60 are opened by tilting the locks in order to release the chains 51 from the elements 31 of the shuttle 30. These elements 31 are lowered to bring them substantially to the level of the shell 11, as shown in FIG. 8D.
  • the chains 51 are again secured to the elements 31 by locking assemblies 60 and these chains 51 are released from the shell 11 by opening the assemblies 65.
  • the elements 31 of the shuttle 30 are lifted so as to lift also the section of the column support 3 and these operations are renewed to gradually lift this section, as shown in FIG. 8E.
  • the elements 31 of the shuttle 30 carrying the section of the support column 3 are brought substantially at the level of the shell 11 (FIG 8F) and the assembly formed by the shuttle 30 and the shell 11 is lowered to bring this hull 11 in flotation, as shown in FIG. 8G.
  • the legs 12 are raised and the structure 10 carrying the support column 3 is removed from the operating site by flotation (Fig. 8G).
  • the structure 10 carrying the section of the support column 3 is floated to a loading site of this section on a barge 80.
  • the lifting legs 12 are applied to the seabed 4 by rotating the gears 27 and 43 by the geared motors 26 and 42 and when the lifting legs 12 are in contact on the seabed 4, the hull 11 and the elements 31 of the shuttle 30 are raised in order to bring the lower end of the section of the support column 3 above the level of the water as shown in FIG. 8H.
  • the barge 80 is brought below this section and said section is placed on the barge 80, then the chains 51 and the cables 56 are disconnected from the section of the support column 3 (FIG 9I).
  • the hull 11 is then floated (FIG 9J) and the legs 12 are raised to allow the structure 10 to be used for a new transfer operation of the remaining part of the support column 3.
  • the barge 80 carrying the section of the support column 3 is brought to a dismounting platform and this section is transferred to this platform, as shown in FIG. 9K.
  • the structure 10 may also be used to remove the lower portion of the support column 3 or, if possible, to remove the entire support column 3 in a single operation.
  • this structure 10 can also be used for laying a support column 3 of an oil platform on an operating site by performing substantially the same operations in the opposite direction.
  • the structure according to the invention has the advantage of being able to transport the support column of an oil rig directly from the operating site to a fixed site where the dismantling can be carried out safely, without risk of pollution of the marine environment. or conversely between a fixed site and an exploitation site.

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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)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Earth Drilling (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ship Loading And Unloading (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP07002269A 2004-01-28 2004-12-30 Vorrichtung zum Zerlegen und Transportieren einer Ölbohrplattform Expired - Lifetime EP1798342B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0400806A FR2865484B1 (fr) 2004-01-28 2004-01-28 Structure de transport, d'installation et de demantelement des elements d'une plate-forme petroliere fixe et procedes de mise en oeuvre d'une telle structure.
EP04816494A EP1716293B1 (de) 2004-01-28 2004-12-30 Verfahren und Vorrichtung zum Demontieren einer Ölplattform

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04816494A Division EP1716293B1 (de) 2004-01-28 2004-12-30 Verfahren und Vorrichtung zum Demontieren einer Ölplattform
EP04816494.1 Division 2004-12-30

Publications (3)

Publication Number Publication Date
EP1798342A2 true EP1798342A2 (de) 2007-06-20
EP1798342A3 EP1798342A3 (de) 2008-11-19
EP1798342B1 EP1798342B1 (de) 2011-12-21

Family

ID=34717471

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04816494A Expired - Lifetime EP1716293B1 (de) 2004-01-28 2004-12-30 Verfahren und Vorrichtung zum Demontieren einer Ölplattform
EP07002269A Expired - Lifetime EP1798342B1 (de) 2004-01-28 2004-12-30 Vorrichtung zum Zerlegen und Transportieren einer Ölbohrplattform

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04816494A Expired - Lifetime EP1716293B1 (de) 2004-01-28 2004-12-30 Verfahren und Vorrichtung zum Demontieren einer Ölplattform

Country Status (10)

Country Link
US (1) US8070388B2 (de)
EP (2) EP1716293B1 (de)
KR (1) KR101230424B1 (de)
AT (2) ATE404739T1 (de)
AU (1) AU2004316316B2 (de)
BR (1) BRPI0418459B1 (de)
DE (1) DE602004015846D1 (de)
EA (1) EA008616B1 (de)
FR (1) FR2865484B1 (de)
WO (1) WO2005083183A1 (de)

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RU2719053C1 (ru) * 2019-09-26 2020-04-17 Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" (ФГУП Крыловский государственный научный центр") Устройство транспортировки добычного модуля и установки его на плаву на стационарное морское опорное основание одноколонного типа
US20210156156A1 (en) * 2019-11-27 2021-05-27 OM Engineering Pty Ltd Independent self-climbing form system for building vertical structures
NO346577B1 (en) * 2020-12-21 2022-10-17 Aker Offshore Wind Operating Company As Construction of offshore wind power plants
CN116201092B (zh) * 2023-03-06 2025-08-26 南方科技大学 用于海上自升式平台的格构式箍板及安装方法

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Also Published As

Publication number Publication date
EP1798342B1 (de) 2011-12-21
US8070388B2 (en) 2011-12-06
FR2865484B1 (fr) 2006-05-19
US20080131209A1 (en) 2008-06-05
EA200601376A1 (ru) 2007-02-27
KR101230424B1 (ko) 2013-02-06
ATE404739T1 (de) 2008-08-15
EP1716293B1 (de) 2008-08-13
AU2004316316B2 (en) 2010-03-11
DE602004015846D1 (de) 2008-09-25
AU2004316316A1 (en) 2005-09-09
EP1798342A3 (de) 2008-11-19
BRPI0418459B1 (pt) 2015-10-20
FR2865484A1 (fr) 2005-07-29
EP1716293A1 (de) 2006-11-02
KR20070006723A (ko) 2007-01-11
BRPI0418459A (pt) 2007-06-05
WO2005083183A1 (fr) 2005-09-09
EA008616B1 (ru) 2007-06-29
ATE538256T1 (de) 2012-01-15

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