EP3172125B1 - Tandemrollenanordnung - Google Patents

Tandemrollenanordnung Download PDF

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Publication number
EP3172125B1
EP3172125B1 EP15728126.2A EP15728126A EP3172125B1 EP 3172125 B1 EP3172125 B1 EP 3172125B1 EP 15728126 A EP15728126 A EP 15728126A EP 3172125 B1 EP3172125 B1 EP 3172125B1
Authority
EP
European Patent Office
Prior art keywords
string
support drum
hawser
reel assembly
offloading
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.)
Active
Application number
EP15728126.2A
Other languages
English (en)
French (fr)
Other versions
EP3172125A1 (de
Inventor
James Straker
Malcolm Smith
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.)
Techflow Marine Ltd
Original Assignee
Techflow Marine Ltd
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 Techflow Marine Ltd filed Critical Techflow Marine Ltd
Publication of EP3172125A1 publication Critical patent/EP3172125A1/de
Application granted granted Critical
Publication of EP3172125B1 publication Critical patent/EP3172125B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • 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
    • B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
    • B63B2021/008—Load monitors
    • 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
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]

Definitions

  • the present invention relates generally to the field of oil and gas production, and towards offloading and storage facilities.
  • the present invention relates to a reel assembly comprising combined mooring and offloading means utilising a single storage reel.
  • a floating production, storage and offloading (FPSO) unit is a floating vessel used by the offshore oil and gas industry for the processing of hydrocarbons and for storage of oil.
  • An FPSO vessel is designed to receive hydrocarbons produced from nearby platforms or subsea template, process them, and store oil until it can be offloaded onto a tanker or, less frequently, transported through a pipeline.
  • FPSOs are preferred in frontier offshore regions as they are easy to install, and do not require a local pipeline infrastructure to export oil.
  • FPSO's can be a conversion of an oil tanker or can be a vessel built specially for the application.
  • FIG. 1 A simplified FPSO 10 and offloading tanker 12 is shown in Figure 1 , where the tanker 12 is moored to the FPSO 10 via a hawser 14, and the hose string 16 provides a fluid connection between the FPSO 10 and the tanker 12 allowing, for example, crude oil, LNG or condensate to be transferred from the FPSO to the tanker.
  • the offloading of crude oil (but also condensate and LNG) from an FPSO vessel to a shuttle tanker is often facilitated via an offloading system 18, such as a Tandem Mooring & Offloading system, that is integrated into the hull of the FPSO 10.
  • the Tandem Mooring & Offloading system may consist of at least two rotating reels 20 and 22.
  • One reel 20 may accommodate a mooring hawser 14, and the other reel 22 may accommodate the offloading hose 16.
  • FIG. 2 A side, front and top view of a typical hawser storage reel are illustrated in Figure 2 (a), (b) and (c) , respectively.
  • the mooring hawser string 14 can be deployed overboard the FPSO 10 and connected to the shuttle tanker 12 to facilitate the tandem mooring process.
  • the mooring system 20 may be integrated into the hull of the FPSO 10, comprising, for example, a rotating reel 24, i.e. a Hawser Storage Reel, accommodating a mooring hawser 14 and connection point mooring hook 26.
  • the mooring hawser string 14 may comprise an FPSO inboard chafe chain master link, a chafe chain, a mooring hawser and shuttle tanker chafe chain.
  • the mooring hawser connection system which securely connects the mooring hawser string to the hull, may comprise a mooring hook, a reel connection link adapted to interface with the chafe chain master link.
  • the FPSO inboard chafe chain and chafe chain master link are deployed from the hawser storage reel 24 so that the reel connection link facilitates the master link connection at the mooring hook that is integrated into the hull.
  • the mooring hawser string 14 and shuttle tanker chafe chain may then be deployed overboard the FPSO 10 and are connected to the shuttle tanker 12.
  • Figure 3 (a), (b) and (c) illustrates a side, front and top view of a typical offloading hose storage reel 22, where the hose string 16 can be deployed overboard the FPSO 10 and connected to the shuttle tanker 12 to facilitate the tandem offloading process.
  • the offloading system 22 may be integrated into the hull of the FPSO 10, comprising, for example, a rotating reel 28 accommodating an offloading hose string 16.
  • the hose string end connection may be connected to the offloading reel 28 via a "gooseneck" connection 30 and secured by a bolted flange.
  • the offloading hose 16 is stored on the reel drum of the rotating reel 28 in a single or double layer.
  • the offloading hose 16 is deployed from the offloading system 22 overboard the FPSO 10 and connected to the shuttle tanker 12.
  • the mooring system 20 and the offloading system 22 may be located at the bow or stern of the FPSO 10, whereby the mooring system is positioned such that the hawser string 14 is in line with the centre line of the FPSO 10.
  • the offloading system 22 may be positioned on the port or starboard side of the mooring system 20.
  • a typical arrangement of a tandem mooring and offloading system 18 is illustrated in Figure 4 (a), (b) and (c) .
  • the FPSO 10 firstly deploys and connects the mooring system 20 from the FPSO 10 to the shuttle tanker 12.
  • the offloading system 22 deploys the offloading hose 16 for connection to the shuttle tanker 12. Crude oil, condensate, fluid medium, LNG etc. may then be transferred through the offloading hose 16 to the shuttle tanker 12.
  • the offloading system 22 recovers the offloading hose 16 to the FPSO hose reel 28.
  • the mooring system 20 then recovers the mooring hawser 14 to the FPSO hawser reel 24.
  • a method and apparatus for performing continuous tubing operations is disclosed, for example, in document US2010/0314132A1 .
  • a motor driven spool is adapted to deploy and retrieve multiple separate strings of continuous tubing, wherein a level-wind assembly us utilised to direct the continuous tubing overboard.
  • document WO97/35759 descloses another example of a multiple-reel assembly for at least two groups of flexible lines adapted to transfer fluid and utilities between a vessel and the sea-bed or another vessel or a platform.
  • both reel assemblies are simply storage reels for the continuous tubing that do not provide any additional functionality.
  • Preferred embodiment(s) of the invention seek to overcome one or more of the above disadvantages of the prior art.
  • a reel assembly comprising the features of claim 1.: This provides the advantage of a significantly reduced number of component parts, consequently requiring a greatly reduced deck space, either bow or stern of the FPSO.
  • the current invention provides the advantage that only one motor drive is required to control the mooring and offloading operation, further reducing overall weight of the system, costs of manufacture and maintenance, and potentially reducing the running cost of the tandem mooring and offloading system.
  • a first flexible string may be connected to said first string connector and wound in a first direction around said at least one first support drum portion.
  • a second flexible string may be connected to said second string connector and wound in a second direction, opposite to said first direction, around said at least one second support drum portion.
  • the first flexible string may be a hawser string
  • the first string connector may be adapted to releasably engage with said hawser string.
  • said first string connector may be adapted to operably engage with a mooring point.
  • said second flexible string may be an offloading hose string adapted to conduct fluid between said first end portion and a second end portion of said second flexible string.
  • said at least one first support drum portion may comprise a first string end fastener adapted to selectively fasten a second end portion of said first flexible string
  • said at least one second support drum portion may comprise a second string end fastener adapted to selectively fasten said second end portion of said second flexible string.
  • the reel assembly may further comprise a monitor system, operably coupled to said reel assembly, and adapted to monitor at least one or more of a string load, support drum speed and direction, and the extent of unwinding of said first and/or second flexible string.
  • a monitor system operably coupled to said reel assembly, and adapted to monitor at least one or more of a string load, support drum speed and direction, and the extent of unwinding of said first and/or second flexible string.
  • the reel assembly may further comprise at least one audible and/or visual indicator adapted to indicate a predetermined condition of said reel assembly.
  • the reel assembly 100 comprises a support structure 102 adapted to be securely installed at bow or stern of an FPSO, a support drum 104 that is rotatably coupled to the support structure 102, e.g. via an axle 106 of the support structure 102.
  • a motor 108 is operably coupled to the support structure 102 so as to rotatably engage the support drum 104, i.e. selectively drive the support drum clockwise and anti-clockwise.
  • a gear mechanism may be coupled between the motor 108 and the support drum 104, so as to allow additional control of the power output of the motor 108.
  • a controller (not shown) is coupled to the motor allowing either manual operation of the reel assembly 100, or providing a pre-programmed sequence of rotating the support drum 104 at a predetermined rotational speed and direction. It is understood by the person skilled in the art that any suitable type of motor 108 and controller (not shown) can be used to drive the reel assembly 100.
  • the support drum 104 has a hawser support portion, adapted to accommodate the hawser string 112, and an offloading support portion 114, adapted to accommodate the offloading hose string 116. Both, hawser and offloading hose support portions 110, 114, are coaxial with the support drum 104 and support structure axle 106.
  • the hawser support portion 110 of the support drum 104 has a larger diameter than the offloading support portion 114 of the support drum 104, so as to allow for the considerable larger diameter of the offloading hose 116 compared to the hawser string 112.
  • the step in diameter between the hawser support portion 110 and the offloading support portion 114 provides a spacial separation between the hawser support portion 110 and the offloading support portion 114.
  • circumferential dividers 118, 120 and 122 are provided at both ends of the support drum 104 and between the hawser support portion 110 and the offloading support portion 114.
  • a "gooseneck" connector 124 is further provided at the offloading support portion 114 of the support drum 104, allowing the offloading hose 116 to be operably connected to the reel assembly 100.
  • the "gooseneck” connector 124 is aligned so as to allow the offloading hose 116 to be wound clockwise around the support drum 104.
  • a hawser connector 126 is provided at the hawser support portion 110 of the support drum 104, allowing the hawser string (e.g. chafe chain section) 112 to be operably connected to the support drum 104.
  • the hawser string is wound anticlockwise around the support drum 104.
  • the hawser connector 126 is further adapted to operably engage with a mooring hook installed at the FPSO deck, i.e. when the hawser string is unwound from the support drum 104, the end section of the hawser automatically disconnects from the hawser connector 126 and connectingly engages with the mooring hook of the FPSO.
  • any suitable diameter may be used for the hawser support portion 110 and the offloading support portion 114, i.e. also including equal diameters for both the hawser support portion 110 and the offloading support portion 114 depending on the intended use of the reel assembly 100.
  • the sequence of steps may be controlled manually, e.g. an operator controlling the motor and rotational direction of the reel, or automatically, for example, via a pre-installed software program.
  • the controller may be interfaced (wire connection or wireless) to external sensors adapted to determine, for example, the rotational speed and direction, as well as the load on either the hawser string 112 or the offline hose 116.
  • Audible or visual indicators may be installed on the reel assembly 100 to provide audible and/or visual signals indicating, for example, the operational status of the reel assembly 100.
  • the controller may further comprise a data logger system adapted to record data from the external sensors, as well as, monitor the data with respect to predetermined thresholds (e.g. safety thresholds).
  • a firing line 128 connected to the hawser string 112 i.e. hawser tag line 130, hawser messenger line 132, outboard chafe chain 134, hawser 136 and inboard chafe chain 138
  • hawser tag line 130 is pulled towards and secured to a chain stopper 140 and traction winch 142 of the shuttle tanker 12.
  • the motor 108 is then actuated to rotate the support drum 104 of the reel assembly 100 in an anti-clockwise direction (viewed from the motor drive side), unwinding the hawser string 112 and moving the hawser messenger line 132 and connected outboard chafe chain 134 and hawser 136 across to the shuttle tanker 12 (utilising the traction winch 142).
  • a hose pull-in line 144 is connected to the outboard chafe chain 134 and pulled across to the shuttle tanker 12, where it is operably coupled to a hose pull-in winch 146.
  • the outboard chafe chain 134 is secured to the chain stopper 140 of the shuttle tanker 12 and the inboard chafe chain 138 is secured to the mooring point of the FPSO 10.
  • the shuttle tanker 12 then manoeuvres to stand off distance from the FPSO 10.
  • the motor 108 is actuated to rotate the support drum 104 in a clockwise direction (viewed from the motor drive side) and the offloading hose 116, connected to the hose pull-in line 144, is transferred to the shuttle tanker 12, and the motor drive 108 is stopped.
  • the offloading hose 116 is then coupled to the hose connection 148 of the shuttle tanker 12 and the offloading of the hydrocarbons is started.
  • the hose recovery step is initiated by actuating the motor drive 108 rotating the support drum 104 anticlockwise (viewed from the motor drive side) and pulling in the offloading hose 116 back toward the FPSO 10.
  • the end portion of the offloading hose 116 is then secured to the support drum 104 utilising, for example, a fastener 125 (see Figure 5 ).
  • the motor drive is actuated to rotate the support drum 104 in a clockwise direction (viewed from the motor drive side) pulling in the hawser string 112 and attached hose pick-up line 144, followed by the messenger line 132.
  • the tag line 130 and firing line 128 are then released overboard the shuttle tanker 12 and pulled across to the FPSO 10.
  • the motor drive 108 is stopped and the end point of the hawser string 112 is secured to the FPSO 10.
  • the reel assembly 100 of the present invention may be used under the name "HOWSER REEL".

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Claims (10)

  1. Eine Rollenanordnung (100) für eine schwimmende Produktions- und Verladeeinheit (FPSO-Einheit), beinhaltend:
    eine Rollenstützstruktur (102), die zur sicheren Installation auf der FPSO angepasst ist;
    eine zylinderförmige Stütztrommel (104), die drehbar an die Rollenstützstruktur (102) gekoppelt ist;
    einen Motorantrieb (108), der betriebsfähig an die Rollenstützstruktur (102) und die zylinderförmige Stütztrommel (104) gekoppelt ist und angepasst ist, um die zylinderförmige Stütztrommel (104) selektiv in einer Richtung im oder gegen den Uhrzeigersinn zu drehen;
    einen Verankerungspunkt, der auf der FPSO bereitgestellt ist;
    wobei die zylinderförmige Stütztrommel (104) ferner Folgendes beinhaltet:
    mindestens einen ersten Stütztrommelabschnitt (110), der mit der zylinderförmigen Stütztrommel (104) koaxial ist und angepasst ist, um einen Taustrang (112) betriebsfähig unterzubringen;
    mindestens einen zweiten Stütztrommelabschnitt (114), der mit der zylinderförmigen Stütztrommel (104) koaxial ist und angepasst ist, um einen Verladeschlauchstrang (116) betriebsfähig unterzubringen, und
    mindestens eine Umfangstrennvorrichtung (120), die mit der zylinderförmigen Stütztrommel koaxial ist und angepasst ist, um den mindestens einen ersten Stütztrommelabschnitt (110) und den mindestens einen zweiten Stütztrommelabschnitt (114) zu trennen, wobei der erste (110) und der zweite Stütztrommelabschnitt (114) einen ersten (126) bzw. einen zweiten Strangverbinder (124) beinhalten, die jeweils angepasst sind, um lösbar mit einem ersten Endabschnitt des entsprechenden Tau-(112) bzw. Verladeschlauchstrangs (116) verbunden zu werden, und dadurch gekennzeichnet, dass der erste Strangverbinder (126) ferner angepasst ist, um mit dem Verankerungspunkt betriebsfähig in Eingriff zu treten, um den ersten Endabschnitt des Taustrangs (112) automatisch von dem Strangverbinder (126) freizugeben und mit dem Verankerungspunkt verbindend in Eingriff zu treten.
  2. Rollenanordnung (100) gemäß Anspruch 1, wobei der Taustrang (112) mit dem ersten Strangverbinder (126) verbunden ist und in einer ersten Richtung um den mindestens einen ersten Stütztrommelabschnitt (110) gewickelt wird.
  3. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, wobei der Verladeschlauchstrang (116) mit dem zweiten Strangverbinder (124) verbunden ist und in einer zweiten Richtung, die der ersten Richtung entgegengesetzt ist, um den mindestens einen zweiten Stütztrommelabschnitt (114) gewickelt wird.
  4. Rollenanordnung (100) gemäß Anspruch 3, wobei die erste Richtung im Uhrzeigersinn ist und die zweite Richtung gegen den Uhrzeigersinn ist.
  5. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, wobei der erste Strangverbinder (126) angepasst ist, um lösbar mit dem Taustrang (112) in Eingriff zu treten.
  6. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, wobei der Verladeschlauchstrang (116) angepasst ist, um Fluid zwischen dem ersten Endabschnitt und einem zweiten Endabschnitt des Verladeschlauchstrangs (116) zu leiten.
  7. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, wobei der mindestens eine erste Stütztrommelabschnitt (110) einen ersten Strangendebefestiger beinhaltet, der angepasst ist, um einen zweiten Endabschnitt des Taustrangs (112) selektiv zu befestigen.
  8. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, wobei der mindestens eine zweite Stütztrommelabschnitt (114) einen zweiten Strangendebefestiger (125) beinhaltet, der angepasst ist, um den zweiten Endabschnitt des Verladeschlauchstrangs (116) selektiv zu befestigen.
  9. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, ferner beinhaltend ein Überwachungssystem, das betriebsfähig an die Rollenanordnung (100) gekoppelt ist und angepasst ist, um mindestens eines oder mehrere von einer Stranglast, einer Stütztrommeldrehzahl und -richtung und dem Ausmaß des Abwickelns des Tau- (112) oder Verladeschlauchstrangs (116) zu überwachen.
  10. Rollenanordnung (100) gemäß einem der vorhergehenden Ansprüche, ferner beinhaltend mindestens einen akustischen und/oder optischen Anzeiger, der angepasst ist, um einen zuvor bestimmten Zustand der Rollenanordnung (100) anzuzeigen.
EP15728126.2A 2014-07-25 2015-06-08 Tandemrollenanordnung Active EP3172125B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1413261.7A GB2528674A (en) 2014-07-25 2014-07-25 A tandem reel assembly
PCT/GB2015/051664 WO2016012747A1 (en) 2014-07-25 2015-06-08 A tandem reel assembly

Publications (2)

Publication Number Publication Date
EP3172125A1 EP3172125A1 (de) 2017-05-31
EP3172125B1 true EP3172125B1 (de) 2018-11-28

Family

ID=51587278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15728126.2A Active EP3172125B1 (de) 2014-07-25 2015-06-08 Tandemrollenanordnung

Country Status (3)

Country Link
EP (1) EP3172125B1 (de)
GB (1) GB2528674A (de)
WO (1) WO2016012747A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7088452B2 (ja) * 2017-05-31 2022-06-21 三井Ｅ＆Ｓ造船株式会社 洋上浮体構造物

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO115184B (de) * 1964-06-24 1968-08-19 Pusnes Mek Verksted
BR9601144A (pt) * 1996-03-27 1998-01-06 Petroleo Brasileiro Sa Sistema de transferência para produtos e utilidades
NO983038A (no) * 1998-06-30 1999-04-26 Maritime Pusnes As Anordning ved lastearrangement for skytteltankskip
GB0715527D0 (en) * 2007-08-10 2007-09-19 Acergy Uk Ltd Methods & apparatus for transferring and laying elongate articles at sea
US8733433B2 (en) * 2009-06-11 2014-05-27 Robert A. Coles Method and apparatus for performing continuous tubing operations
GB201103413D0 (en) * 2011-03-01 2011-04-13 Techflow Marine Ltd Improvements in or relating to hose loading stations
GB2500413A (en) * 2012-03-21 2013-09-25 Sharona Keren Double-reel winding device for drip irrigation lines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
EP3172125A1 (de) 2017-05-31
GB2528674A (en) 2016-02-03
WO2016012747A1 (en) 2016-01-28
GB201413261D0 (en) 2014-09-10

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