EP0863260B1 - Verfahren zum Verbinden der Beingurte einer Ölplattform - Google Patents

Verfahren zum Verbinden der Beingurte einer Ölplattform Download PDF

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Publication number
EP0863260B1
EP0863260B1 EP98400103A EP98400103A EP0863260B1 EP 0863260 B1 EP0863260 B1 EP 0863260B1 EP 98400103 A EP98400103 A EP 98400103A EP 98400103 A EP98400103 A EP 98400103A EP 0863260 B1 EP0863260 B1 EP 0863260B1
Authority
EP
European Patent Office
Prior art keywords
sections
section
leg
hull
legs
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.)
Expired - Lifetime
Application number
EP98400103A
Other languages
English (en)
French (fr)
Other versions
EP0863260A1 (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
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Filing date
Publication date
Application filed by Technip France SAS filed Critical Technip France SAS
Publication of EP0863260A1 publication Critical patent/EP0863260A1/de
Application granted granted Critical
Publication of EP0863260B1 publication Critical patent/EP0863260B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet

Definitions

  • the subject of the present invention is a method of assembling sections of support legs of an offshore oil rig.
  • Oil exploitation platforms at sea usually have legs, for example three in number, resting on the seabed and a hull mounted movable and adjustable in height long legs and wearing particular equipment operating and living quarters.
  • the entire platform After its construction, the entire platform is brought in flotation to the city of drilling or operating, and the legs went down in contact with a supporting structure or the seabed then by resting on the legs, the shell is hoisted above sea level to a altitude which puts it out of the reach of the highest waves.
  • the shell is therefore movable along the shell-carrying legs by means of mechanisms of training housed in a load-bearing framework supported by the hull and well known to specialists under the name of "jack-house”.
  • each load-bearing leg each have at least two opposite geared motor assemblies causing output gears which cooperate with racks opposite and mounted on the legs.
  • each leg crosses the hull and the corresponding supporting framework and is formed by sections superimposed and joined together by welding.
  • Each section can have a height of the order of eighteen meters and is generally made up of vertical members, three or four, linked together by a trellis of steel beams or by boxes.
  • each member is formed on the one hand, by a rectangular plate and, on the other part, by half-shell-shaped stiffeners each welded on one of the main faces of said plate.
  • the rectangular plates feature on their lateral face of the teeth which form the diametrically opposite racks, intended for cooperate with the output gears of the mechanisms drive.
  • the shell rests on the construction site floor by means of support members appropriate.
  • the first method consists, for each leg, to be lifted by a large lifting device height, a first section, to bring it in line with the corresponding passage in the hull and the load-bearing framework, then to lower it gradually to engage it vertically in this passage.
  • the second method is to assemble the different components of the hull at a height large enough to accommodate the soil of the site a space allowing the passage of sections vertical below said shell.
  • each leg is brought vertically below the shell, then lifted to position it in the passage in the hull and supporting structure of drive mechanisms.
  • the object of the invention is to avoid these disadvantages by proposing a method which makes it possible to simplify assembly and assembly operations legs of an oil rig and by consequently to reduce manufacturing costs.
  • Fig. 1 there is shown schematically a self-elevating oil platform comprising a shell 1 provided with operating equipment and living quarters usual.
  • This shell 1 is mounted displaceable on vertical legs 2 intended to rest on the seabed 3 when the platform is in position drilling or exploitation.
  • Each leg 2 ends at its part lower by a leg 4, intended to rest on the seabed 3.
  • each of these legs 2 has, in this embodiment, a triangular section.
  • These legs 2 can also have a square or circular section.
  • each leg 2 is formed by several sections 20, for example of a height of the order of eighteen meters and which are superimposed and joined together by welding for form said leg 2.
  • Each leg 2 has a height of around 70 to 170 meters.
  • each section 20 of the legs 2 is formed of three members 21 connected together by a lattice of metal beams 22 or by caissons.
  • the members 21 of the sections 20 comprise teeth to form on each frame 21, two racks 23 diametrically opposite and intended for cooperate with drive mechanisms 30 to move the shell 1 on the vertical legs 2.
  • the drive mechanisms 30 are housed in a load-bearing framework 10 also called by jack-house specialists.
  • Each supporting frame 10 is supported by the shell 1, as shown in Fig.1.
  • the drive mechanisms 30 are formed by geared motor assemblies 31 each an output pinion 32 cooperating with the racks 23 arranged on the members 21 of each vertical leg 2.
  • each leg 2 crosses the hull 1 and the corresponding supporting frame 10 by a vertical passage 5.
  • the drive mechanisms 30 allow lower legs 2 until contact with the bottom sailor 3, then taking support on these legs 2 of hoist hull 1 above the sea, up to a altitude which puts it out of reach of the highest waves (Fig. 1).
  • the construction of the platform is performed as follows.
  • the different elements component hull 1 are assembled in a building site and this shell 1 rests on supports 6 at a low distance from the ground, as shown in Figs. 7A to 7c.
  • each load-bearing framework 10 is equipped, at the passage level of each member 21 of the sections 20 of the legs 2, a guide 12 of complementary shape to a portion circular of the corresponding member 21 and intended guiding the sections 20 during their vertical translation, as we will see later.
  • the height of the lateral opening 11 and the distance between the lower part of the hull 1 with the ground form a space high enough to allow passage of a section 20.
  • the means for lifting the first section 20 can be constituted for example by a crane or cylinders ..
  • This first section 20 is then lifted by the motor-reducer 31 and pinion assemblies of outputs 32 so as to position the lower part of said first section 20 above the opening side 11, as shown in FIG. 7B.
  • the lateral opening 11 thus being released, one engages in this lateral opening 11 a second section 20 and it is positioned in the axis of the first section 20 previously raised.
  • these sections 20 are assembled by welding and are raised by means of said assemblies geared motors 31 and output pinions 32 to release the lateral opening 11 in order to allow the positioning of another section 20.
  • the method according to the invention therefore makes it possible to simplify assembly and assembly operations legs of an oil rig and by consequently to reduce manufacturing costs.
  • the method according to the invention makes it possible to reduce handling operations and avoid that the different sections assembly operations legs are dependent on the weather.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)
  • Revetment (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Foundations (AREA)
  • Earth Drilling (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Claims (2)

  1. Verfahren zum Zusammenbau von Teilstücken von Beinstützen einer Ölplattform für den Einsatz auf See, in der Ausführung mit einem auf den Beinstützen (2) verstellbaren Rumpf (1), angetrieben durch eine Antriebsvorrichtung (30), die auf einem auf dem Rumpf (1) angebrachten Trägergerüst (10) angeordnet ist, wobei jede aus wenigstens zwei gegenüberliegenden Getriebemotorengruppen (31) besteht, welche Abtriebsritzel (32) antreiben, die mit gegenüberliegenden Zahnstangen (23) zusammenwirken, und wobei die Zahnstangen (23) auf den Beinstützen (2) angebracht sind, und jede dieser Beinstützen (2) den Rumpf (1) und das zugehörige Trägergerüst (10) durchläuft und aus übereinander angeordneten und durch Schweißen zusammengefügten Teilstücken (20) besteht, gekennzeichnet durch folgende Verfahrensschritte:
    auf der Höhe des Durchgangs einer jeden Beinstütze (2) wird eine seitliche Öffnung (11) im Rumpf (1) und in dem unteren Teil des Trägergerüstes (10) ausgespart,
    in jede seitliche Öffnung (11) wird ein erstes Teilstück (20) eingefügt und in der Mittellinie des Durchgangs (5) der Beinstütse (2) positioniert,
    das erste Teilstück (20) einer jeden Beinstütze (2) wird angehoben, um den oberen Bereich dieses Teilstücks (20) oberhalb der Öffnung (11) zu positionieren,
    die Getriebemotorengruppen (31) und Abtriebsritzel (32) werden auf den Zahnstangen (23) des ersten Teilstücks (20) angebracht,
    das erste Teilstück (20) wird mittels der Getriebemotorengruppen (31) und Abtriebsritzel (32) angehoben, um den unteren Teil dieses ersten Teilstückes (20) über die Öffnung (11) zu verfahren,
    in die Öffnung (11) wird ein zweites Teilstück (20) eingefügt und dieses gemäß der Mittellinie des ersten Teilstücks (20) ausgerichtet,
    die Teilstücke (20) werden aneinander angelegt,
    diese Teilstücke (20) werden miteinander durch Schweißen verbunden,
    diese Teilstücke (20) werden mittels der Getriebemotorengruppen (31) und Abtriebsritzel (32) angehoben,
    die Teilstücke (20) zur Bildung einer jeden Beinstütze (2) werden nacheinander in die Öffnung (11) eingefügt und miteinander verbunden,
    und die erstellten seitlichen Öffnungen (11) im Rumpf (1) werden wieder verschlossen.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass während des Anhebens der Teilstücke (20) der Beinstützen (2) diese Teilstücke (20) im Inneren eines jeden Tragergerüstes (10) seitlich geführt werden.
EP98400103A 1997-03-07 1998-01-20 Verfahren zum Verbinden der Beingurte einer Ölplattform Expired - Lifetime EP0863260B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9702763 1997-03-07
FR9702763A FR2760474B1 (fr) 1997-03-07 1997-03-07 Procede d'assemblage de troncons de jambes de support d'une plate-forme petroliere

Publications (2)

Publication Number Publication Date
EP0863260A1 EP0863260A1 (de) 1998-09-09
EP0863260B1 true EP0863260B1 (de) 2003-04-02

Family

ID=9504532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400103A Expired - Lifetime EP0863260B1 (de) 1997-03-07 1998-01-20 Verfahren zum Verbinden der Beingurte einer Ölplattform

Country Status (8)

Country Link
US (1) US5954453A (de)
EP (1) EP0863260B1 (de)
DE (1) DE69812754T2 (de)
EA (1) EA000553B1 (de)
ES (1) ES2195285T3 (de)
FR (1) FR2760474B1 (de)
MY (1) MY119478A (de)
NO (1) NO316125B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782733A (en) * 1992-10-26 1998-07-21 Innoflex Incorporated Zippered film and bag
WO2012162800A1 (en) * 2011-06-02 2012-12-06 National Oilwell Varco, L.P. Drilling rig system with self-elevating drill floor
DE102012016915B4 (de) * 2012-08-22 2017-10-19 Salzgitter Mannesmann Line Pipe Gmbh Tragstruktur eines Offshore-Bauwerks, insbesondere einer Windenergieanlage, Verwendung einer derartigen Tragstruktur, sowie Verfahren zu deren Herstellung
WO2014182991A1 (en) 2013-05-10 2014-11-13 Devin International, Inc. Drilling rig transfer system and method
WO2016008031A1 (en) 2014-07-14 2016-01-21 Dreco Energy Services Ulc Mobile drilling rig
US9988807B2 (en) 2016-02-24 2018-06-05 National Oilwell Varco, L.P. Drilling rig with self-elevating drill floor
WO2017155950A1 (en) 2016-03-07 2017-09-14 National Oilwell Varco, L.P. Multi-well bop cellar trailer
US9970211B2 (en) 2016-05-02 2018-05-15 Dreco Energy Services Ulc Guide rails for mobile drilling rig
US10293854B2 (en) 2016-10-05 2019-05-21 Dreco Energy Services Ulc Movable rig and steering system
WO2020028969A1 (en) 2018-08-06 2020-02-13 Dreco Energy Services Ulc Drill floor support structures
CN109648269B (zh) * 2019-01-02 2021-07-09 南通泰胜蓝岛海洋工程有限公司 一种海洋生活平台的提升腿桩建造工艺
US11603723B2 (en) 2019-08-30 2023-03-14 Nov Canada Ulc Cuttings processing unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014346A (en) * 1957-09-10 1961-12-26 Jersey Prod Res Co Method and means for raising and lowering a platform
US3183676A (en) * 1960-10-20 1965-05-18 Robert G Letourneau Mobile sea platform
US3727414A (en) * 1971-06-28 1973-04-17 Bowden Drilling Services Ltd Off shore drilling platform construction
US4266887A (en) * 1977-06-10 1981-05-12 Brown & Root, Inc. Self-elevating fixed platform
US4255069A (en) * 1979-08-01 1981-03-10 The Offshore Company Jack-up platform locking apparatus
US4269543A (en) * 1979-08-29 1981-05-26 Freiede & Goldman, Ltd. Mobile, offshore, self-elevating (jack-up) unit leg/hull rigidification system
JPS6047410B2 (ja) * 1980-02-22 1985-10-22 三井造船株式会社 着地昇降式海上作業台の試験方法
FR2734851B1 (fr) * 1995-06-02 1999-03-05 Technip Geoproduction Plate-forme auto-elevatrice de forage ou d'exploitation petroliere en mer.

Also Published As

Publication number Publication date
DE69812754D1 (de) 2003-05-08
EA199800195A1 (ru) 1998-10-29
EP0863260A1 (de) 1998-09-09
NO316125B1 (no) 2003-12-15
ES2195285T3 (es) 2003-12-01
FR2760474A1 (fr) 1998-09-11
DE69812754T2 (de) 2004-03-18
FR2760474B1 (fr) 1999-05-28
NO980961D0 (no) 1998-03-05
EA000553B1 (ru) 1999-10-28
US5954453A (en) 1999-09-21
NO980961L (no) 1998-09-08
MY119478A (en) 2005-05-31

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