EP0425339A1 - Hänge- und Behandlungsvorrichtung integriert in den Beinen einer selbsthebenden Offshore-Plattform - Google Patents

Hänge- und Behandlungsvorrichtung integriert in den Beinen einer selbsthebenden Offshore-Plattform Download PDF

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Publication number
EP0425339A1
EP0425339A1 EP90402876A EP90402876A EP0425339A1 EP 0425339 A1 EP0425339 A1 EP 0425339A1 EP 90402876 A EP90402876 A EP 90402876A EP 90402876 A EP90402876 A EP 90402876A EP 0425339 A1 EP0425339 A1 EP 0425339A1
Authority
EP
European Patent Office
Prior art keywords
legs
geared motor
assemblies
assembly
sleeve
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
EP90402876A
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English (en)
French (fr)
Other versions
EP0425339B1 (de
Inventor
Pierre-Armand Thomas
Lucien Raffoux
Guy Delamare
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 Geoproduction SA
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Technip Geoproduction SA
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Filing date
Publication date
Application filed by Technip Geoproduction SA filed Critical Technip Geoproduction SA
Publication of EP0425339A1 publication Critical patent/EP0425339A1/de
Application granted granted Critical
Publication of EP0425339B1 publication Critical patent/EP0425339B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • E02B17/024—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 shock absorbing means for the supporting construction
    • 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

Definitions

  • the present invention relates to an integrated suspension and handling device for platform support legs for drilling or oil production at sea and relates more particularly to self-elevating platforms.
  • Platforms of this type generally have legs resting on the seabed and a hull mounted movable and adjustable in height along the legs.
  • the whole platform is brought into flotation to the drilling or operating site and the legs are lowered until contact with the seabed, then by resting on the legs, the hull is hoisted above from sea level, to an altitude that puts it beyond the reach of the highest waves.
  • the hull is therefore movable along the legs of the platform by means of lifting mechanisms integral with said hull and comprising output pinions whose bearings are integral with the hull and cooperating with racks mounted on at least part of leg length.
  • These pinions are motorized by a plurality of for example electric motors associated with reducers whose reduction ratio is very high.
  • leg suspension device which is constituted by a rotating balancing arm.
  • a device for suspending the legs of an oil platform which comprises at least one torsion bar, one end of which is provided with a pinion meshing with a toothed sector mounted on the reducer and the other end of which is immobilized on the structure integral with the hull of the platform.
  • torsion bar or bars are arranged parallel to the axis of rotation of the drive mechanism which increases the overall size of the assembly.
  • the invention therefore aims to remedy the aforementioned drawbacks by creating a device for suspending the legs of a self-elevating oil platform which, while being of a relatively simple construction, makes it possible to reduce the size of the drive mechanism and the stresses due to shocks in the structure and especially in the gears of the reducers, and to carry out the installation of the platform with severe sea conditions, therefore in larger weather windows, which reduces the cost of installation.
  • an integrated suspension and handling device for the support legs of a self-elevating oil platform comprising a hull mounted displaceable on the legs by means of drive mechanisms comprising at least two opposite assemblies each formed by a motor associated with at least one reduction gear driving an output pinion cooperating with opposite racks mounted on at least part of the length of the legs, said opposite assemblies of each drive mechanism being mounted articulated on a structure supporting them via at least one bearing allowing a determined angular movement of said assemblies and of each corresponding output pinion, characterized in that said motor and said at least reduction gear of each opposite assembly is housed in an energy absorption member, used in particular when placing the legs on the seabed, and limiting the c strains due to the flexion of said legs under the action of swell and wind.
  • the energy-absorbing and stress-limiting member is formed by at least one torsion sleeve, one of the ends of which is rotated by the corresponding geared motor assembly and the other of which is integral with a crosspiece connecting two contiguous sleeves each associated with said corresponding geared motor assembly, each assembly gear motor rotating in opposite direction with respect to the other;
  • the sleeve of each geared motor assembly is formed of at least two sections separated by an intermediate flange on which one of the ends of each section is fixed, the intermediate flanges of the contiguous geared motor assemblies are interconnected by at least one tie rod adjustable in length and mutually immobilizing said intermediate flanges in rotation,
  • the sleeve of each geared motor assembly has each of its ends fixed on a flange, - the sleeve of each geared motor assembly is fixed to the flanges by gluing, it includes means for prestressing in compression the sleeve of each motor-reduction unit, - The compression prestressing means
  • a self-elevating oil platform comprising a hull 1 movable mounted on vertical legs 2 intended to bear on the seabed 3, when the platform is in the drilling or operating position.
  • Each of the vertical legs 2 has, in the present case, a triangular section and it consists of three uprights 2a, connected together by a lattice of metal beams.
  • leg 4 which, in the present example, is hexagonal in shape.
  • the platform is also equipped, at each leg 2, with a drive and suspension mechanism 10 for the shell relative to said legs.
  • This drive mechanism 10 makes it possible to lower the legs 2 to the contact with the seabed, then taking support on the legs, to hoist the hull 1 above the sea, to an altitude which puts it out of the reach of the highest waves.
  • the uprights 2a of the legs 2 are provided with diametrically opposite racks 5 disposed on a part of the length of the legs 2 and with which are intended to cooperate the output pinions 11 of the drive mechanism 10 mounted on the shell 1
  • the output pinions 11 of the drive mechanism 10 mounted on the shell 1
  • four output pinions can be provided for each upright 2a and each equipped with a geared motor assembly 12.
  • a drive and suspension mechanism 10 In these figures, there is shown in phantom the amount 2a of a leg 2 provided with two opposite racks 5.
  • the drive mechanism 10 comprises four geared motor assemblies 12a, 12b, 12c and 12d superimposed two by two and contiguous two by two.
  • This assembly 12a comprises a motor 13, for example an electric motor, first driving a first reducer 14 at high speed and small torque, which causes a second reducer 15 for example of the epicyclic type, but at a lower speed and greater torque, on the 'slowest output shaft 16 from which the pinion 11 is keyed.
  • a motor 13 for example an electric motor
  • first driving a first reducer 14 at high speed and small torque which causes a second reducer 15 for example of the epicyclic type, but at a lower speed and greater torque, on the 'slowest output shaft 16 from which the pinion 11 is keyed.
  • the output shaft 16 is guided at its free end by a bearing 17 of a structure 20 integral with the shell.
  • the reduction gear 15 is articulated on the structure 20 which supports the assembly 12a by means of bearings 18a and 18b so as to allow a certain angular movement of said assembly 12a and therefore of the corresponding output pinion 11, during the descent and the laying of the leg, as we will see later.
  • the geared motor assembly 12a comprises an energy absorbing member formed by a tubular torsion sleeve 21 inside which the motor 13 and at least the reducer 14 are housed, thus making it possible to produce a compact assembly. and space-saving.
  • the end 21a of the sleeve 21 is fixed, for example by gluing, on a flange 22 which is itself integral with the reduction gear 15.
  • the end 21b of the sleeve 21 is fixed, for example by gluing, on a flange 23.
  • the end 21b of the sleeve 21 is integral with a crosspiece 24 via the flange 23.
  • This crosspiece 24 connects the sleeve 21 of the assembly 12a to the sleeve 21 of the adjoining assembly 12b, also by means of a flange 23 (Fig. 4), these two assemblies 12a and 12b being driven in the opposite direction because their respective pinion 11 meshes with the two opposite racks 5 located on either side of the upright 2a.
  • the sleeves 21 are made of an elastically deformable material such as elastomers. They can also be made of a laminated material formed by a juxtaposition of washers made of elastomer and steel washers.
  • tie rods 25 have one end secured to the structure 20 supporting the geared motor assemblies 12a, 12b, 12c and 12d and the other end secured to the crosspiece 25 connecting two contiguous sleeves.
  • the entire platform is therefore brought into flotation to the drilling or operating site, and the legs 2 are lowered until they come into contact with the seabed.
  • the motors 13 therefore drive, via the reducers 14 and 15, the output pinions 11 which mesh with the racks 5.
  • the motors 13 act as brakes.
  • each torsion sleeve 21 is composed of two sections, for example a small section 21c and a longer section 21d separated by an intermediate flange 30 on which these are fixed, for example by gluing.
  • the flanges 30 corresponding to two contingent sleeves 21 are connected by two tie rods 31 and 32 adjustable in length and make it possible to immobilize said rotating flanges mutually.
  • the torsion sleeves 21 can be used for two functions.
  • the first function which consists in absorbing the shock of the pose of a leg 2 on the seabed, uses the entire length of the sleeves 21 and, in this case, the tie rods 31 and 32 are not mounted, so that the flanges 30 are free to rotate and the opposing torques are balanced by the crosspieces 24.
  • the second function is used when the legs 2 are placed at the bottom and the hull raised above sea level.
  • tie rods 31 and 32 are therefore installed between the intermediate flanges 30 of each motor-reducer assembly 12a, 12b, 12c and 12d.
  • This system is advantageous from the point of view of the cost of the installation, because it makes it possible to eliminate the interposition of elastic cushions between the structure 20 supporting the geared motor assemblies and the shell 1 of the platform, as is usual. to do so in the prior art.
  • the damping stroke is very large, because the number of torsional turns of the sleeves 21 is not limited.
  • the device according to the invention also makes it possible to equalize the torques between all of the reducers of the system for moving the legs relative to the hull, and thus offers the possibility of laying the platform. with more severe sea conditions, therefore in wider weather windows, which significantly reduces installation costs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Earth Drilling (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Jib Cranes (AREA)
  • Details Of Aerials (AREA)
  • Gear Transmission (AREA)
EP90402876A 1989-10-24 1990-10-15 Hänge- und Behandlungsvorrichtung integriert in den Beinen einer selbsthebenden Offshore-Plattform Expired - Lifetime EP0425339B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913934A FR2653462B1 (fr) 1989-10-24 1989-10-24 Dispositif de suspension et de manutention integrees des jambes d'une plate-forme petroliere auto-elevatrice.
FR8913934 1989-10-24

Publications (2)

Publication Number Publication Date
EP0425339A1 true EP0425339A1 (de) 1991-05-02
EP0425339B1 EP0425339B1 (de) 1992-10-14

Family

ID=9386730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402876A Expired - Lifetime EP0425339B1 (de) 1989-10-24 1990-10-15 Hänge- und Behandlungsvorrichtung integriert in den Beinen einer selbsthebenden Offshore-Plattform

Country Status (6)

Country Link
US (1) US5102264A (de)
EP (1) EP0425339B1 (de)
JP (1) JP2665394B2 (de)
KR (1) KR960005724B1 (de)
FR (1) FR2653462B1 (de)
NO (1) NO177194C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121348A (zh) * 2014-07-10 2014-10-29 南京高精船用设备有限公司 自升式海洋平台封闭行星结构升降齿轮箱
CN114352706A (zh) * 2021-11-26 2022-04-15 武汉船用机械有限责任公司 海洋平台齿轮箱安装方法

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658215B1 (fr) * 1990-02-13 1994-05-13 Brissonneau Lotz Marine Perfectionnement aux mecanismes de manóoeuvre de plateformes marines, procede de gestion de ces mecanismes et installation pour la mise en óoeuvre du procede.
US5580189A (en) * 1995-12-22 1996-12-03 Searex, Inc. Jack-up rig crane
US5797703A (en) * 1996-02-02 1998-08-25 Searex, Inc. Elevating unit for use with jack-up rig
US5997217A (en) * 1998-05-11 1999-12-07 Verret; Rodney J. Shallow water well-drilling apparatus
US20100155682A1 (en) * 2008-12-06 2010-06-24 Burns Mark L Fast jack liftboat jacking system
KR101018742B1 (ko) * 2010-12-30 2011-03-04 삼성물산 주식회사 해상 잭업 플랫폼을 이용한 엘엔지 재기화 설비
KR101018741B1 (ko) * 2010-12-30 2011-03-04 삼성물산 주식회사 해상 제티 구조물을 이용한 엘엔지 재기화 설비
AT511611B1 (de) * 2011-07-13 2013-01-15 Univ Wien Tech Anordnung von schwimmplattformen
CN103696685B (zh) * 2013-11-28 2015-10-21 江苏泰来减速机有限公司 一种同轴双减速正反双向输出螺旋入岩钻机
CN103696684B (zh) * 2013-11-28 2015-10-21 江苏泰来减速机有限公司 一种双驱动同轴正反向增速输出螺旋入岩钻机
EP2915769A1 (de) * 2014-03-04 2015-09-09 Siemens Aktiengesellschaft Hebe-/Rutschvorrichtung mit einem Dauermagnet-Synchronmotor
CN106826004B (zh) * 2016-12-14 2018-11-27 武汉船用机械有限责任公司 齿轮齿条升降***安装架的制作方法
CN106695148B (zh) * 2016-12-15 2019-04-02 武汉船用机械有限责任公司 齿轮齿条升降***安装架的装配方法及装配工装

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492029A1 (fr) * 1980-10-13 1982-04-16 Francois Durand Bloc pignons autoalignant et autobasculant pour patte de plate-forme auto-elevatrice
US4688662A (en) * 1985-05-16 1987-08-25 The Lamson & Sessions Co. Energy absorber
EP0271377A1 (de) * 1986-11-26 1988-06-15 Technip Geoproduction Hängevorrichtung für tragende Füsse einer selbsthebenden Ölplattform

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US3323763A (en) * 1965-03-29 1967-06-06 Tri State Products Inc Motor mounting rings
US3245658A (en) * 1965-04-12 1966-04-12 John R Sutton Offshore platform elevating equipment
US4171027A (en) * 1977-01-19 1979-10-16 Krauss-Maffei Aktiengesellschaft Mounting system for the terminal drive of a tracked vehicle
FR2424243A1 (fr) * 1978-04-26 1979-11-23 Rhone Poulenc Ind Procede d'oxyhydrochloration non polluant
US4195950A (en) * 1978-08-17 1980-04-01 Goldman Jerome L Shock absorbing structure and method for off shore jack-up rigs
FR2436099A1 (fr) * 1978-09-14 1980-04-11 Brissonneau & Lotz Mecanisme de levage pour plate-forme auto-elevatrice
JPS5829371B2 (ja) * 1981-09-29 1983-06-22 三井造船株式会社 海上作業台ジヤツキユニツトの負荷測定装置
JPS6344010A (ja) * 1986-08-07 1988-02-25 Sumitomo Heavy Ind Ltd 海上作業台の脚保持装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492029A1 (fr) * 1980-10-13 1982-04-16 Francois Durand Bloc pignons autoalignant et autobasculant pour patte de plate-forme auto-elevatrice
US4688662A (en) * 1985-05-16 1987-08-25 The Lamson & Sessions Co. Energy absorber
EP0271377A1 (de) * 1986-11-26 1988-06-15 Technip Geoproduction Hängevorrichtung für tragende Füsse einer selbsthebenden Ölplattform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121348A (zh) * 2014-07-10 2014-10-29 南京高精船用设备有限公司 自升式海洋平台封闭行星结构升降齿轮箱
CN114352706A (zh) * 2021-11-26 2022-04-15 武汉船用机械有限责任公司 海洋平台齿轮箱安装方法
CN114352706B (zh) * 2021-11-26 2024-04-26 武汉船用机械有限责任公司 海洋平台齿轮箱安装方法

Also Published As

Publication number Publication date
KR910008249A (ko) 1991-05-30
JPH03169910A (ja) 1991-07-23
NO904546L (no) 1991-04-25
NO904546D0 (no) 1990-10-22
FR2653462A1 (fr) 1991-04-26
NO177194C (no) 1995-08-02
FR2653462B1 (fr) 1992-02-14
JP2665394B2 (ja) 1997-10-22
NO177194B (no) 1995-04-24
EP0425339B1 (de) 1992-10-14
KR960005724B1 (ko) 1996-05-01
US5102264A (en) 1992-04-07

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