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WO2004050470A2 - Systeme treuil/guindeau d'amarrage - Google Patents

Systeme treuil/guindeau d'amarrage Download PDF

Info

Publication number
WO2004050470A2
WO2004050470A2 PCT/BR2002/000172 BR0200172W WO2004050470A2 WO 2004050470 A2 WO2004050470 A2 WO 2004050470A2 BR 0200172 W BR0200172 W BR 0200172W WO 2004050470 A2 WO2004050470 A2 WO 2004050470A2
Authority
WO
WIPO (PCT)
Prior art keywords
windlass
chain
winch
mooring
wildcat
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.)
Ceased
Application number
PCT/BR2002/000172
Other languages
English (en)
Inventor
Donald J. Wudtke
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.)
Gaia Importacao Exportacao E Servicos Ltda
WUDTKE CONSULTING LLC
Original Assignee
Gaia Importacao Exportacao E Servicos Ltda
WUDTKE CONSULTING LLC
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 Gaia Importacao Exportacao E Servicos Ltda, WUDTKE CONSULTING LLC filed Critical Gaia Importacao Exportacao E Servicos Ltda
Priority to PCT/BR2002/000172 priority Critical patent/WO2004050470A2/fr
Priority to BR0215867-1A priority patent/BR0215867A/pt
Publication of WO2004050470A2 publication Critical patent/WO2004050470A2/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7405—Capstans having two or more drums providing tractive force
    • B66D1/741—Capstans having two or more drums providing tractive force and having rope storing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/18—Stoppers for anchor chains

Definitions

  • the present invention relates generally to a mooring windlass/ inch system suitable for use with a floating offshore oil production platform installation - hook-up and tensioning of the mooring lines and for any line tension adjustments or line replacement that may be required during service.
  • the windlass/ messenger winch type system is also suitable for application in any vessel that is moored with a pre-laid mooring system.
  • the invention in its principal form relates to an improved mooring windlass/ messenger winch system that simplifies the handling and hook-up of the mooring lines.
  • Structures such as offshore oil production platforms (FFSO) are installed at various locations in the ocean where they may be exposed to heavy seas and ocean currents. It is necessary for such structures to be firmly anchored to avoid excessive lateral drift relative to the associated production risers from the wellhead on the ocean floor.
  • FFSO offshore oil production platforms
  • the anchoring structure commonly used has consisted of a substantial number of conventional anchors having flukes, which dig into the ocean bottom or permanent embedment type anchors that are permanently attached to the ocean bottom.
  • the mooring lines commonly consist of a first length of chain attached to the anchor, an intermediate length of synthetic rope or wire rope attached to the anchor chain and the other end attached to a second length of platform chain.
  • the mooring lines and anchors are transported and deployed from a large anchor handling work boat, with the free end of the platform chain attached to a buoy while the vessel or FPSO is brought to the location. The vessel is then positioned in the center of the mooring line pattern, and the mooring lines are retrieved and attached to the vessel.
  • One type of conventional mooring arrangement for an FPSO has one mooring system located on the bow - consisting of ten or more lines - and one other mooring system located at the stern - consisting of eight or more lines, both systems on the main deck.
  • a single vertical shaft windlass is used to handle the stern mooring lines and a single vertical shaft windlass is used for the bow mooring lines.
  • the position of the windlass in relation to the deck level fairlead is limited by the minimum degree of chain wrap angle around the wildcat that is necessary in order for the wildcat to function properly.
  • a messenger line is attached to the free end of the buoyed off platform chain and passes through an underwater fairlead on the FPSO hull, up and over a deck level fairlead and around the vertical shaft windlass wildcat positioned on the centerline of the FPSO.
  • the vertical shaft windlass wildcat is specially designed to pass the messenger line, connector and platform chain.
  • the anchor handling winch aboard the work boat hauls in on the messenger line and platform chain until the platform chain engages the wildcat and the end of the platform chain extends over the deck edge of the FPSO or alternately into one of several chain lockers on the FPSO.
  • the existing wire rope drum are discharged, or reused with the additional winches, and the twin drum traction winch assemblies are vertically mounted within the support flanges where the removed wire rope drums were previously mounted.
  • the method described suggests replacing a drum winch with a traction winch module mounted on and supported by the existing mooring winch frame of the drum winch.
  • the traction winch module includes a traction winch frame, a front traction drum and a rear traction drum.
  • the traction winch frame is affixed to the mooring winch frame.
  • the drive shaft from the drum winch may be retained and linked to drive the traction winch
  • the Foster, Wudtke, and Juelich patents are all used on MODU (mobile offshore drilling unit) type vessels. This type drilling vessel is designed for mobile operation and is moved from location to location
  • the anchors and mooring lines are carried aboard the vessel and require a separate winch/ windlass for each and every mooring line.
  • the mooring line is made up of an anchor, a length of chain attached to the anchor, and a very long length of wire rope (up to 15,000 ft.) that is tensioned deployed, and retrieved by the traction winch and stored on a stowage reel aboard the vessel. Because the wire rope traction winch must react all of the mooring line loads including the breaking strength of the wire rope the unit is of heavy robust design..
  • a traction type winch is required for this type of system because of the inherent advantage of being able to handle ultra long lengths of wire rope as opposed to the limitations of a conventional drum type winch.
  • the traction type winch is not suitable for use on a production vessel mooring system that utilizes a messenger winch that in turn is not required to react the mooring loads and/ or store and handle the full length mooring lines.
  • the mooring loads can be very high, so a large number of mooring lines arranged in a spread mooring pattern are required. Also, the FPSO cannot be detached from the mooring lines or the fluid carrying risers regardless of the environmental loads.
  • the present invention presents a new conception of windlass/ winch in that the vertical shaft type windlass is replaced with a horizontal shaft type windlass.
  • a horizontal shaft type mooring windlass/ inch which pivots horizontally about a single chain locker, enables a single windlass to service a plurality of mooring lines.
  • the horizontal shaft windlass can be rotated in the horizontal plane and can be oriented to any horizontal angular position about a single chain locker located on the centerline of the vessel.
  • Another objective of the present invention is to provide a horizontal shaft type windlass that always maintains a uniform degree of chain wrap on the wildcat for any horizontal angular orientation of the windlass and thus allow more flexibility regarding the mooring deck machinery arrangement in the most advantageous location.
  • Another objective of the present invention is to improve the overall safety of the operation since the messenger line wire rope winch maintains control of the platform chain and messenger line at all times including removal of the excess platform chain over the side of the vessel.
  • An advantage of the present invention is that the messenger line wire rope winch mounted on the horizontal shaft windlass above and behind the wildcat inherently leads the platform chain to the front of the windlass wildcat where the wildcat tail chain is located. As consequence it is only necessary to disconnect the messenger line from the platform chain and connect the platform chain to the wildcat tail chain, no additional chain handling equipment, such as davits or tugged winches are required.
  • Another advantage is that the platform chain is connected outboard of the wildcat to the permanent wildcat tail chain. Thus, a conventional wildcat can be used because the wire rope messenger line and connector does not have to pass through the wildcat.
  • the present invention provides a horizontal shaft type windlass integral with a conventional wire rope type winch mounted above and behind the windlass wildcat.
  • the combined windlass/ winch is mounted on a circular foundation that permits the windlass to rotate in the horizontal plane about the centerline of the windlass chain locker.
  • the ability to orient the windlass and winch in the horizontal plane allows a single windlass to serve a number of mooring chains.
  • the horizontal shaft type windlass always maintains the same degree of chain wrap on the windlass head independent of the horizontal orientation of the windlass thus providing greater flexibility in the deck arrangement of the mooring equipment components.
  • the mooring chain and messenger line is connected to and disconnected from the permanent tail chain of the windlass outboard of the wildcat so the windlass does not need a special wildcat to handle the messenger line and the connector in addition to the chain.
  • the integral wire rope winch serves as a messenger line winch to guide the mooring chain to the windlass wildcat.
  • FIG. 1 represents schematically a plan view of a FPSO main deck, showing the stern and bow mooring system.
  • FIG. 2 is a detailed side view of the windlass/ winch of the invention.
  • FIG. 3 is a top view of the windlass/ winch of the invention on a circular foundation.
  • FIG. 4 is a side sectional view of the windlass/ winch of the invention.
  • FIG. 5 is a top sectional view illustrating the central bushing on the chain pipe.
  • FIG, 6 is a simplified sectional view of the vessel mooring system.
  • FIG. 6A to FIG. 6F is a side view of the windlass/winch of the invention, mounted on the deck of the vessel structure, performing different steps of the operation concerning the vessel mooring equipment.
  • FIG. 7 is a simplified sectional view of the vessel mooring system relative to auxiliary fairlead.
  • FIG. 7 A to FIG. 7C is a side view of the windlass/ winch of the invention, mounted on the deck of the vessel structure, performing different steps of the operation regarding the auxiliary fairlead vessel arrangement. Description of preferred embodiment
  • the invention can be applied to any type of vessel that has a pre-laid spread type mooring system.
  • a FPSO is used as an example in order to make easier the comprehension, but it cannot be considered a limitation, of the invention thought.
  • the anchors and mooring lines are preinstalled at the mooring location by using a conventional method well known by those skilled in the art.
  • the FPSO is moved into position in the mooring pattern and the platform end of the mooring line chain is retrieved aboard the FPSO by the windlass/winch messenger line.
  • the platform chain is stopped off at the deck edge fairlead.
  • the windlass/winch of the present invention includes: a) a pair of spaced apart pedestals and frame; b) a wildcat shaft journeled in the pedestals: c) a wildcat mounted on the wildcat shaft; d) a wire rope messenger winch mounted on said pedestals, that works in conjunction with the wildcat to lead the mooring chain to the windlass; e) a special circular foundation that is centered over the windlass chain locker which bearing pads support the windlass/ winch on the top of said circular foundation and allows the moorings windlass/ inch to pivot horizontally about the vertical center of the chain locker chain pipe; f) a central bushing on the chain pipe; g) a number of gearboxes with drive pinions power associated to the wildcat drive gear.
  • FIG.l there is schematically represented in FIG.l the deck arrangement of the vessel mooring system 1.
  • a windlass/ winch 2 of the invention is positioned in the center of the stern mooring system 3 and of the bow mooring system 4, respectively; auxiliary fairlead 5 and deck level fairlead 6 are also shown.
  • Each single windlass /winch can be rotated in the horizontal plane to handle and tension a plurality of mooring lines.
  • FIG. 2 - FIG. 5 show different views of the windlass/ winch 2 of the invention, mounted on the deck of the vessel structure 1.
  • a pair of spaced apart pedestals 7 and frame 8 is mounted on a special circular foundation 9, which is centered on the chain pipe 10.
  • This special circular foundation 9 can be seen in detail in FIG. 5.
  • a wildcat mounted on wildcat shaft 11 containing a portion of mooring chain 12, and a wire rope messenger 13, are equally mounted on said pedestals 7.
  • the wire rope messenger winch 13 works in conjunction with the wildcat 11 to lead the mooring chain 12 to a windlass.
  • the windlass/ winch 2 is supported on the top of the circular foundation 9 by means of bearing pads 14a, 14b, 14c, which by its turn is centered on the chain pipe 10 by means of bushings 15, as shown in detail in FIG. 3 - FIG. 5.
  • the wildcat 11 can be driven by means of gearboxes 16a, 16b, 16c with drive pinions 17a, 17b, 17c that connect the wildcat drive gear 18.
  • the mooring principal operations are well known of that familiar with offshore oil production. However, by using the windlass/ winch of the invention the operatio can be conducted in a simplified manner.
  • FIG. 6 illustrates an elevation view of the vessel mooring equipment arrangement.
  • the windlass/ winch 2 is placed on the chain pipe 10 and chain locker 19, and the deck fairlead 6 and the underwater fairlead 22 are showed.
  • FIG. 6 A - FIG. 6F illustrate the operation steps following.
  • the wire rope messenger line 20 is deployed outboard from the wire rope messenger winch 13, passing through the deck fairlead 6, which chain stopper 21 remains disengaged, and following through the underwater fairlead 22 to receive a platform chain 23 pending from the buoy (not shown).
  • the end of the platform chain 23 is attached to the connector 24 at the end of the messenger line 20 by mean o£ a detachable link 25 and retrieved to the deck of the vessel.
  • the chain stopper 21 is engaged when a short length of the platform chain 23 is onboard; the platform chain is detached from the messenger line and attached to the windlass tail chain 12.
  • the windlass 11 tensions the platform chain 23 and the chain stopper 21 is disengaged.
  • the platform chain is retrieved and locked off at the deck level chain stopper 21 and deck fairlead 6, and the chain is cut off at a predetermined length (approximately 100 meters).
  • the chain windlass is only required to develop the minimu tension required to preload the mooring line loads and not the breaking strength of the chain.
  • the full breaking strength of the mooring line is reacted by a chain stopper independent of the windlass/ winch.
  • the messenger wire line is disconnected outboard of the wildcat and does not pass through the wildcat.
  • the wire line messenger winch is only required to handle and store enough scope of wire rope to retrieve the end of the preinstalled mooring line (up to 400 meters).
  • FIG. 7 is an elevation view of the windlass/ winch and the auxiliary fairlead vessel arrangement.
  • the windlass/ inch 2 centered on the top of the chain locker 19, is repositioned to line up with the auxiliary fairlead 5.
  • FIG. 7 A - FIG. 7C illustrate the operation steps following.
  • a messenger line 26 from the workboat winch (not shown in figures) is passed through the auxiliary fairlead 5 and attached to the excess platform chain 23 in the chain locker 19.
  • the windlass 11 pays out the platform chain 23, under tension, until the platform chain is outboard of the windlass wildcat. Meanwhile the workboat winch retrieves the end of the platform chain.
  • the auxiliary fairlead chain stopper 27 is engaged and the outboard chain detached.
  • the windlass/ winch messenger wire rope line 20 is attached to the outboard chain by means of a detachable link 25.
  • the messenger winch takes the chain load and the chain stopper 27 is disengaged. As the workboat retrieves the excess platform chain the messenger line winch 20 maintains control of the vessel end of the chain.
  • the improved mooring windlass/winch system of the invention enhance with advantage the handling and hook-up of the mooring lines simplifying the operational procedure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

L'invention concerne un barbotin de guindeau (11) à axe horizontal, combiné à un treuil à câble métallique (13) monté sur et derrière le barbotin de guindeau. Le treuil/guindeau combiné (2) est monté sur une base circulaire (9) qui permet au guindeau de tourner dans le plan horizontal autour de la ligne d'axe du puits aux chaînes de guindeau (19). Grâce à l'orientation possible du guindeau et du treuil dans le plan horizontal, un seul guindeau peut desservir plusieurs chaînes d'amarrage (23). Le guindeau à axe horizontal maintient toujours, indépendamment de son orientation horizontale, le même degré d'engrènement de chaîne sur la tête de barbotin de guindeau, ce qui apporte une plus grande souplesse dans l'agencement sur le pont des éléments de l'équipement d'amarrage.
PCT/BR2002/000172 2002-12-05 2002-12-05 Systeme treuil/guindeau d'amarrage Ceased WO2004050470A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/BR2002/000172 WO2004050470A2 (fr) 2002-12-05 2002-12-05 Systeme treuil/guindeau d'amarrage
BR0215867-1A BR0215867A (pt) 2002-12-05 2002-12-05 Sistema de guincho/molinete de ancoragem e método para ancoragem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2002/000172 WO2004050470A2 (fr) 2002-12-05 2002-12-05 Systeme treuil/guindeau d'amarrage

Publications (1)

Publication Number Publication Date
WO2004050470A2 true WO2004050470A2 (fr) 2004-06-17

Family

ID=32398903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2002/000172 Ceased WO2004050470A2 (fr) 2002-12-05 2002-12-05 Systeme treuil/guindeau d'amarrage

Country Status (2)

Country Link
BR (1) BR0215867A (fr)
WO (1) WO2004050470A2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20090082A1 (it) * 2009-01-26 2010-07-27 Saipem Spa Metodo e sistema per la trazione di una linea funzionale, in particolare una linea di ormeggio, di una unita' galleggiante di produzione
CN102371527A (zh) * 2011-10-28 2012-03-14 舟山中南锚链有限公司 新型锚链滚桶
WO2013117597A1 (fr) 2012-02-06 2013-08-15 Sbm Schiedam B.V. Système de traction pour lignes de manœuvre d'un récipient
CN106379492A (zh) * 2016-11-18 2017-02-08 大连华锐重工集团股份有限公司 海洋工程装备海上定位锚泊系统及其使用方法
KR101781205B1 (ko) * 2015-10-26 2017-09-25 현대삼호중공업 주식회사 리그선 무어링 체인 탑재 방법
CN109436206A (zh) * 2018-12-21 2019-03-08 大连海事大学 多点系泊系统锚链提升装置及其操作方法
US20220017183A1 (en) * 2020-07-20 2022-01-20 Nick Atallah Handling tail chains of mooring lines
CN115258049A (zh) * 2022-05-19 2022-11-01 中船黄埔文冲船舶有限公司 一种多点定位锚的设备布局结构及船舶
CN115503884A (zh) * 2022-10-08 2022-12-23 上海外高桥造船有限公司 止链器加强连接结构
KR20230047770A (ko) * 2021-10-01 2023-04-10 대우조선해양 주식회사 무어링 체인 견인용 체인 핸들링 시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722293A (en) 1984-10-25 1988-02-02 John T. Hepburn, Limited Integrated winch and windlass
US5984586A (en) 1997-02-04 1999-11-16 Continental Emsco Company Mooring unit and retrofitting method
US6089547A (en) 1996-12-18 2000-07-18 Amclyde Engineered Products, Inc. Method and apparatus for winch upgrading

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722293A (en) 1984-10-25 1988-02-02 John T. Hepburn, Limited Integrated winch and windlass
US6089547A (en) 1996-12-18 2000-07-18 Amclyde Engineered Products, Inc. Method and apparatus for winch upgrading
US5984586A (en) 1997-02-04 1999-11-16 Continental Emsco Company Mooring unit and retrofitting method

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800462B2 (en) 2009-01-26 2014-08-12 Saipem S.P.A. Traction method and system for an operating line, in particular a mooring line, of a floating production unit
WO2010084420A1 (fr) * 2009-01-26 2010-07-29 Saipem S.P.A. Procédé et système de tension d'une ligne de manœuvre, en particulier une ligne d'amarrage, d'une unité flottante de production, de stockage et d'expédition (fpso) et unité fpso
ITMI20090082A1 (it) * 2009-01-26 2010-07-27 Saipem Spa Metodo e sistema per la trazione di una linea funzionale, in particolare una linea di ormeggio, di una unita' galleggiante di produzione
CN102371527A (zh) * 2011-10-28 2012-03-14 舟山中南锚链有限公司 新型锚链滚桶
US9573660B2 (en) 2012-02-06 2017-02-21 Sbm Schiedam B.V. Traction system for operating lines of a vessel
KR102050614B1 (ko) * 2012-02-06 2020-01-08 싱글 뷰이 무어링스 인크. 선박의 라인들을 작동시키기 위한 견인 시스템
KR20140123543A (ko) * 2012-02-06 2014-10-22 에스비엠 스키담 비.브이. 선박의 라인들을 작동시키기 위한 견인 시스템
CN104093627A (zh) * 2012-02-06 2014-10-08 Sbm斯希丹公司 用于船舶的操作线的牵引系统
WO2013117597A1 (fr) 2012-02-06 2013-08-15 Sbm Schiedam B.V. Système de traction pour lignes de manœuvre d'un récipient
KR101781205B1 (ko) * 2015-10-26 2017-09-25 현대삼호중공업 주식회사 리그선 무어링 체인 탑재 방법
CN106379492A (zh) * 2016-11-18 2017-02-08 大连华锐重工集团股份有限公司 海洋工程装备海上定位锚泊系统及其使用方法
CN109436206A (zh) * 2018-12-21 2019-03-08 大连海事大学 多点系泊系统锚链提升装置及其操作方法
US20220017183A1 (en) * 2020-07-20 2022-01-20 Nick Atallah Handling tail chains of mooring lines
US11724778B2 (en) * 2020-07-20 2023-08-15 Bardex Corporation Systems and methods for securing and removing tail chains from mooring lines
KR20230047770A (ko) * 2021-10-01 2023-04-10 대우조선해양 주식회사 무어링 체인 견인용 체인 핸들링 시스템
KR102552456B1 (ko) * 2021-10-01 2023-07-11 한화오션 주식회사 무어링 체인 견인용 체인 핸들링 시스템
CN115258049A (zh) * 2022-05-19 2022-11-01 中船黄埔文冲船舶有限公司 一种多点定位锚的设备布局结构及船舶
CN115503884A (zh) * 2022-10-08 2022-12-23 上海外高桥造船有限公司 止链器加强连接结构

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