EP0156682B1 - Dispositif de verrouillage pour plate-forme pétrolière - Google Patents

Dispositif de verrouillage pour plate-forme pétrolière Download PDF

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Publication number
EP0156682B1
EP0156682B1 EP85400321A EP85400321A EP0156682B1 EP 0156682 B1 EP0156682 B1 EP 0156682B1 EP 85400321 A EP85400321 A EP 85400321A EP 85400321 A EP85400321 A EP 85400321A EP 0156682 B1 EP0156682 B1 EP 0156682B1
Authority
EP
European Patent Office
Prior art keywords
plates
counter
rack
locking device
jack
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
Application number
EP85400321A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0156682A1 (fr
Inventor
Pierre-Armand Thomas
Jean-Claude Naudin
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
Original Assignee
Technip Geoproduction SA
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 Geoproduction SA filed Critical Technip Geoproduction SA
Publication of EP0156682A1 publication Critical patent/EP0156682A1/fr
Application granted granted Critical
Publication of EP0156682B1 publication Critical patent/EP0156682B1/fr
Expired 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
    • E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings

Definitions

  • the present invention relates to offshore oil drilling platforms and relates more particularly to jack-up platforms.
  • the self-elevating platforms are generally arranged on legs plugged into the bottom of the drilling site and along which a shell is movably mounted by means of drive mechanisms provided with pinions cooperating with racks mounted along said legs.
  • the static reaction load is amplified by the tendency of the members to move relative to each other. to each other in a differential manner.
  • Locking devices for existing oil platforms require significant mechanical stalls in order to make up for the play due, for example, to non-uniform depressions of the various legs of the platform in the ground.
  • GB-A-2 077 843 discloses a locking device for oil platforms comprising a toothed part forming a rack mounted on the shell of the platform and means for moving said toothed part transversely to the direction of the rack with which the device is associated to engage the teeth of said toothed part in those of the rack or to release them therefrom.
  • the object of the invention is to produce a locking device for a self-elevating oil platform which, while being of a relatively simple construction, allows rapid locking after displacement of the platform as well. that a quick release is for a later movement, or for a leveling up.
  • a locking device for a self-elevating oil platform comprising a hull mounted movable on legs by means of lifting mechanisms comprising output pinions cooperating with racks mounted on at least part of the length of the legs, a toothed piece forming a rack mounted on the shell of the platform, means for moving said toothed piece transversely to the direction of the rack with which the device is associated to engage the teeth of said toothed piece in those of the rack or release them, characterized in that it comprises clamping plates integral with said toothed part and clamping counter plates integral with said platform as well as means for clamping said plates and plates to ensure the locking of said toothed part in position in said rack.
  • Fig. 1 there is shown in plan a part of a self-elevating oil platform comprising a hull element 1 movably mounted on vertical legs 2 here made up of four chords stuck in the ground of the site on which the platform is placed.
  • the legs 2 of the platform are provided with diametrically opposite racks 3 (Fig. 4) disposed over a part of the length of the legs 2 and with which are intended to cooperate drive mechanism output gears (not shown) mounted on the hull 1.
  • Six output gears can be provided per platform leg.
  • the shell 1 of roughly square shape has at its four corners housings 4 each intended to receive a locking device according to the invention.
  • This device comprises a toothed part 6 provided with a counter-rack 6a intended to cooperate with a corresponding rack 3 mounted in the leg 2.
  • the toothed part 6 forming a rack is mounted movable perpendicular to the rack by means of jacks 7 whose rods 8 are articulated on lateral yokes 9 of the part 6 in order to allow the engagement of the teeth of the rack 6a in those of the rack 3 when the hull is locked in position and the teeth of the counter rack 6a are removed from the rack 3 in order to unlock the hull.
  • the rods 8 of the jacks 7 also have an intermediate articulation 8a to compensate for the effects of displacement of the toothed part 6 on the spacing of the jacks 7.
  • the cylinders 10 of the cylinders 7 are articulated at fixed points of the shell, not shown.
  • the toothed part 6 has side walls 11 perpendicular to the counter-rack 6a and defining between them a housing 12 for clamping plates 13 of rectangular shape mounted fibers between the side walls 11 and held between these walls by flanges 14.
  • the plates 13 are interposed other plates 15 disposed in a mount 16 secured to the shell of the platform. They are arranged in their mounting so as to be able to move freely in a direction transverse to the direction of movement of the toothed part 6.
  • the braking plates 13 or plates as well as the braking counter-plates 15 are four in number.
  • the locking device further comprises two clamping cylinders 20 intended to apply the plates 13 and the counter-plates 15 against each other.
  • the jacks 20 are made integral with the hull of the platform. In the present embodiment, these are hydraulic cylinders.
  • reaction cushions 22 made of an elastomer or also of Teflon (registered trademark).
  • the rod 23 of the actuator forming a pusher for the counterplates is lockable by means of a nut secured to a toothed wheel 24 meshing with an output pinion 25 of an electric motor 26 (Fig. 4).
  • each frame 2a of the platform being equipped with two racks 3 diametrically opposite, there is provided a locking device according to the invention associated with each of these racks.
  • the device comprises a fixed stop plate 27 constituting the equivalent of a disc brake shoe.
  • the braking plates 13 and the braking backing plates 15 are made of steel.
  • Their friction coefficients can also be increased by providing linings of friction material on the faces of said plates.
  • the part 6 drives with it the clamping plates 13 which are adjusted inside this part. These plates slide between the counter plates 15 interposed between them with a slight clearance of a few millimeters.
  • the part 6 provided with its plates slides along a bearing face 26 of the stop 27 (Fig. 2) which acts as a brake shoe.
  • the number of plates of the locking device can be adapted to the dynamic moment to be balanced.
  • Unlocking the device occurs in the same way by reversing the procedure.
  • the actuators 20 are actuated by applying a fluid pressure slightly higher than the setting pressure which ensures the release of the motorized safety nuts 20. These can then be unscrewed.
  • the rods 23 of the cylinders can then be retracted causing the decompression of the elastomer cushions 22 and the plates 13 of the counter plates 15 are released.
  • the double-acting cylinders 7 can then bring the toothed part 6 backwards to release the teeth of the counter-rack 6a relative to the teeth of the rack 3.
  • the device which has just been described presents the operating sequences which can be automated.
  • the locking device shown in FIG. 5 constitutes a variant of the device described with reference to FIGS. 2 to 4.
  • the device of FIG. 2 it comprises a toothed part 30, the toothed part of which forms a counter-rack intended to cooperate with a rack of a leg or member of the platform is not shown.
  • the part 30 are mounted with clearance clamping plates 31 which cooperate with clamping counter-plates 32 disposed in a fixed mount secured to the platform.
  • the clamping counter-plates 32 bear on a stop 33 forming the brake shoe.
  • the counter plate 32 opposite to that bearing on the stop 33, comprises bias wedges 34 intended to cooperate with the wedges 35 of complementary inclination connected together by a spacer 36 and actuated by a double-acting cylinder 37.
  • the wedges skewers 35 bear against the shell by means of cushions 38 made of elastomer or Teflon.
  • the jack 37 In order to ensure positive security of such an arrangement, the jack 37 must be provided with a motorized nut similar to that used in the clamping jacks 20 of the embodiment of FIG. 2.
  • a hydraulic cylinder 37 is used to actuate the bias wedges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Braking Arrangements (AREA)
  • Types And Forms Of Lifts (AREA)
  • Machine Tool Units (AREA)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
EP85400321A 1984-02-28 1985-02-21 Dispositif de verrouillage pour plate-forme pétrolière Expired EP0156682B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8403066A FR2560246B1 (fr) 1984-02-28 1984-02-28 Dispositif de verrouillage pour plate-forme petroliere
FR8403066 1984-02-28

Publications (2)

Publication Number Publication Date
EP0156682A1 EP0156682A1 (fr) 1985-10-02
EP0156682B1 true EP0156682B1 (fr) 1988-04-27

Family

ID=9301491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400321A Expired EP0156682B1 (fr) 1984-02-28 1985-02-21 Dispositif de verrouillage pour plate-forme pétrolière

Country Status (8)

Country Link
US (1) US4627768A (da)
EP (1) EP0156682B1 (da)
JP (1) JPS6168918A (da)
BR (1) BR8500847A (da)
CA (1) CA1228236A (da)
DK (1) DK157498C (da)
FR (1) FR2560246B1 (da)
NO (1) NO163705C (da)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO160387C (no) * 1986-06-03 1989-04-12 Maritime Hydraulics As Innretning ved en heiseanordning, spesielt for et boretaarn
JPS6344010A (ja) * 1986-08-07 1988-02-25 Sumitomo Heavy Ind Ltd 海上作業台の脚保持装置
FR2607165B1 (fr) * 1986-11-26 1990-07-20 Technip Geoproduction Dispositif de suspension des jambes de support de plate-forme petroliere auto-elevatrice
US5163513A (en) * 1991-06-28 1992-11-17 Bowen Tools, Inc. Circle threadform for marine riser top joint
US5486069A (en) * 1994-06-06 1996-01-23 Breeden; John Offshore jack-up rig locking system
EP0693593B1 (fr) * 1994-07-19 1999-12-22 Technip France Procédé d'assemblage de tronçons de grande longueur de membrures des jambes de support d'une plate-forme pétrolière
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
US5915882A (en) * 1997-06-26 1999-06-29 Letourneau, Inc. Jack-up platform locking apparatus and method
US6543966B2 (en) 1997-07-25 2003-04-08 American Piledriving Equipment, Inc. Drive system for inserting and extracting elongate members into the earth
US6431795B2 (en) 1997-07-25 2002-08-13 American Piledriving Equipment, Inc. Systems and methods for inserting wick drain material
US6039508A (en) * 1997-07-25 2000-03-21 American Piledriving Equipment, Inc. Apparatus for inserting elongate members into the earth
US5906457A (en) * 1997-08-30 1999-05-25 Zentech, Inc. Offshore jackup elevating and leg guide arrangement and hull-to-legs load transfer device
US6447036B1 (en) 1999-03-23 2002-09-10 American Piledriving Equipment, Inc. Pile clamp systems and methods
US6705802B2 (en) 2002-08-16 2004-03-16 Saudi Arabian Oil Company Temporary support for offshore drilling platform
US7694747B1 (en) 2002-09-17 2010-04-13 American Piledriving Equipment, Inc. Preloaded drop hammer for driving piles
US20040254878A1 (en) * 2003-06-13 2004-12-16 Community Reinvestment Acceptance Group, Llc System and method for providing critical period protection to eligible borrowers
SG120998A1 (en) * 2004-09-15 2006-04-26 Offshore Technology Dev Pte Lt Interactive leg guide for offshore self elevating unit
FR2890670B1 (fr) * 2005-09-09 2007-12-07 Technip France Sa Systeme de verrouillage complementaire des jambes sur un pont d'une plate-forme d'exploitation en mer et procedes de pose d'un tel systeme de verrouillage.
US7854571B1 (en) * 2005-07-20 2010-12-21 American Piledriving Equipment, Inc. Systems and methods for handling piles
US7594781B1 (en) 2007-06-01 2009-09-29 Ronald Sanders Lift boat leg
US8763719B2 (en) 2010-01-06 2014-07-01 American Piledriving Equipment, Inc. Pile driving systems and methods employing preloaded drop hammer
US8434969B2 (en) 2010-04-02 2013-05-07 American Piledriving Equipment, Inc. Internal pipe clamp
US9249551B1 (en) 2012-11-30 2016-02-02 American Piledriving Equipment, Inc. Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles
US9371624B2 (en) 2013-07-05 2016-06-21 American Piledriving Equipment, Inc. Accessory connection systems and methods for use with helical piledriving systems
US10392871B2 (en) 2015-11-18 2019-08-27 American Piledriving Equipment, Inc. Earth boring systems and methods with integral debris removal
US9957684B2 (en) 2015-12-11 2018-05-01 American Piledriving Equipment, Inc. Systems and methods for installing pile structures in permafrost
US10273646B2 (en) 2015-12-14 2019-04-30 American Piledriving Equipment, Inc. Guide systems and methods for diesel hammers
US10538892B2 (en) 2016-06-30 2020-01-21 American Piledriving Equipment, Inc. Hydraulic impact hammer systems and methods
CN106381856B (zh) * 2016-08-29 2019-02-05 武汉船用机械有限责任公司 分段式圆柱形桩腿

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278158A (en) * 1964-08-06 1966-10-11 Saldana Juan Angel Lifting mechanism, actuating means therefor and slab anchoring means therefor
US3343371A (en) * 1965-01-25 1967-09-26 Mcdermott & Co Inc J Ray Locking device for establishing a loadbearing joint between two structures
US3722863A (en) * 1971-12-22 1973-03-27 Ishikawajima Harima Heavy Ind Lift apparatus
DE2250924C3 (de) * 1972-10-18 1975-08-14 Schiess Ag Kletterhubwerk zum Anheben oder Absenken großer Lasten
US4255069A (en) * 1979-08-01 1981-03-10 The Offshore Company Jack-up platform locking apparatus
NL174484C (nl) * 1980-06-13 1984-06-18 Marine Structure Consul Vastzetinrichting voor een paalvormig element met een heugel, waarbij een heugelstuk kan ingrijpen in de heugel.
JPS5844115A (ja) * 1981-09-10 1983-03-15 Nippon Kokan Kk <Nkk> レグと作業台からなる海洋構造物のストツパ−装置
JPS58160427A (ja) * 1982-03-17 1983-09-22 Ishikawajima Harima Heavy Ind Co Ltd 昇降式プラツトフオ−ムの脚固定装置

Also Published As

Publication number Publication date
DK157498B (da) 1990-01-15
DK90085D0 (da) 1985-02-27
NO163705C (no) 1990-07-04
CA1228236A (en) 1987-10-20
JPH0311325B2 (da) 1991-02-15
DK157498C (da) 1990-06-05
NO850762L (no) 1985-08-29
FR2560246A1 (fr) 1985-08-30
NO163705B (no) 1990-03-26
US4627768A (en) 1986-12-09
EP0156682A1 (fr) 1985-10-02
FR2560246B1 (fr) 1986-07-25
JPS6168918A (ja) 1986-04-09
DK90085A (da) 1985-08-29
BR8500847A (pt) 1985-10-15

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