US3833032A - Tandem mooring-loading system - Google Patents

Tandem mooring-loading system Download PDF

Info

Publication number
US3833032A
US3833032A US00302528A US30252872A US3833032A US 3833032 A US3833032 A US 3833032A US 00302528 A US00302528 A US 00302528A US 30252872 A US30252872 A US 30252872A US 3833032 A US3833032 A US 3833032A
Authority
US
United States
Prior art keywords
hose
cargo
transfer system
cargo transfer
carriage
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
US00302528A
Other languages
English (en)
Inventor
W Hnot
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to US00302528A priority Critical patent/US3833032A/en
Priority to CA182,995A priority patent/CA993314A/en
Priority to AU61280/73A priority patent/AU479680B2/en
Priority to GB4773573A priority patent/GB1434568A/en
Priority to IE1838/73A priority patent/IE38380B1/xx
Priority to NO4188/73A priority patent/NO140292C/no
Priority to ES420121A priority patent/ES420121A2/es
Priority to JP48121840A priority patent/JPS4980792A/ja
Application granted granted Critical
Publication of US3833032A publication Critical patent/US3833032A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B63B27/24—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 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids

Definitions

  • the system 8 433 includes a floating hose between the storage terminal 58] Fie'ld "141/279 2 231 232 and the shuttle tanker, which whenv not in use is stored 1416854387 onthe'storage terminal. Atrolley is provided for re traction and paying out of :the hose; and the hose is equipped with check valves at both ends to trap cargo [56] g gfzgg gfi within the hose when it is disconnected. 3,727,650 4/1973 Ingram et al 141 279 15 Claims; 12 Drawing Figures PATENTEU sum 1 or s PAIENIEDsEP 31m SHEEI 2 (IF 3 PAIENTEB sf?
  • SHEET 30F 3 1 TANDEM MOORING-LOADING SYSTEM CROSS-REFERENCE TO RELATED APPLICATIONS
  • tandem mooring of vessels is feasible in seas of at least 20foot significant wave height, which is considered to be a relatively severe environment.
  • a tandem mooring system utilizes a permanently moored storage member or float, such as a tanker, to load a smaller shuttle tanker or offtaker.
  • a permanently moored storage member or float such as a tanker
  • offtaker The use of separate moorings for both the float and the offtaker, while shown to be possible in seas greater'than -foot proved cargo transfer system employing tandem moorsignificant wave height, is considered uneconomical.
  • Pat. No. 3,535,883 assigned to the assignee of the ing and more particularly relates to a tandem mooringlloading system including means for storage, retraction and paying out of a floating hose for connection between two vessels.
  • the invention includes a permanently moored floating storage member (e.g., tanker), which is referred to throughout this disclosure as .the float, for loading a smaller shuttle tanker which is'referred to throughout this disclosure as the offtaker.
  • a system constructed and arranged according to the present invention includes a rack forstoring and paying out the hose used in the transfer of the liquid cargo between the float and the ofitaker and a trolley or carriage for retraction and paying out of the hose.
  • Suitable means for mooring the offtaker and a manifold for connecting the cargo hose at each end are also provided.
  • the hose includes check valves at each end thereof for trapping cargo therein when the hose is disconnected.
  • the float has associated therewith the hose storage rack and the trolley. While the hose usually must be stored during severe sea conditions, it may be possible to leave it floating behind. the float between offtaker loadings. This will depend on time intervals between offtaker loadings and the amount of interference with the offtaker during berthing.
  • the storage rack is provided along its entire length with a plurality of preferably rubber covered rollers.
  • the float vessel end of the hose in addition to being connected to the float vessel piping, is mounted on the trolley which rides on tracks extending the full-length of the hose storage rack.
  • the mooring of the offtaker and connection of the hose may be accomplished by shooting a messenger line to the offtaker, which then can take on the mooring line which is connected to the messenger line.
  • a messenger line attached to the hose can be delivered to the offtaker as the float pays out the hose, whereupon the offtaker raises the hose over the rail and attaches it to its manifold. Thereafter, the cargo transfer operation may begin.
  • FIG. 1 is a schematic plan viewof a preferred embodiment of a cargo transfer system for tandem moored vessels in accordance with the present invention
  • FIG. 3 illustrates an elevation view of the system of FIG. 1 with the float tanker empty and the offtaker full;
  • FIG. 4 is a partial plan view of the hose storage system on the float with the hose in stored position
  • FIG. 5 is an enlarged cross-sectioned view taken substantially along the line 5-5 of FIG. 4, illustrating details of the hose storage system
  • FIG. 6 shows details of the hose carriage when located at the stern of the float with the hose connected at its opposite end to the offtaker;
  • FIG. 7 is a cross-sectional view taken substantially along the line 7-7 of FIG. 6;
  • FIG. 8 is a cross-sectional view taken substantially along the line 88 of FIG. 6;
  • FIG. 9 is an enlarged cross-sectional view of the roller support taken substantially along the line 99 of FIG. 6;
  • FIG. 10 is an alternate embodiment to FIG. 5 with the storage system mounted in cantilevered relation to the float deck;
  • FIG. 11 is a partial cross-sectional view illustrating the hook up arrangement for the hose at the offtaker; and FIG. 12 is an alternate embodiment of the hook up arrangement of FIG. 11.
  • FIG. 1 wherein the float or permanently moored storage member 10 comprises a tanker moored in tandem with a shuttle tanker or olftaker 12.
  • the float is moored by means of a standard bow mooring such as a single point mooring generally designated 14.
  • a standard bow mooring such as a single point mooring generally designated 14.
  • the float comprises a tanker, other suitable floating members such as permanently attached floating storage tanks and the like may be employed. It is necessary that only one of the members be a floating offshore attended terminal, which for convenience is referred to as the float.
  • the float 10 has secured thereto a rack or ramp generally designated 16 for use in the storage,retraction and paying out of a floating cargo transfer hose 18.
  • FIGS. 2 and 3 show that the rack includes an outboard end in the form of a stinger ramp 20 having a generally downward curvature to facilitate movement of the hose toward and from-the ramp.
  • the storage ramp 16 is built onto the deck of the float 10.
  • a variation of the ramp location is shown in FIG. 10 where the ramp 16 is cantilevered off the deck.
  • the configuration of the stinger at the outboard end of the rack prevents the hose from being bent or curved beyond its minimum bend radius.
  • a suitable framework (not shown) may be provided to support this portion of the ramp.
  • the rack 16 is provided along its entire length with a plurality of journaled rubber-covered rollers 22.
  • the hose l8 is shown in its extended position connected to the shuttle tanker or offtaker 12.
  • the hose extends from the stern of the float -l0 and can be connected to the offtaker by any one of the several means previously discussed.
  • the hose is connected in a generally conventional manner to a schematically illustrated manifold 24 on the offtaker.
  • a hoist mechanism generally designated 26 suspends the hose therefrom and may be connected to the hose through shock absorbers 28 or similar cushioning devices to minimize the impact stresses imposed by the hose during operations conducted in high seas.
  • FIG. 12 An alternate arrangement to that illustrated in FIG. 11 for connecting the hose to the offtaker is shown in FIG. 12.
  • the float vessel end of the hose I8 is adapted to be connected to float vessel piping 30 by means of a standard quick-disconnect coupling 32.
  • the float piping 30 is connected to the coupling via a standard fluid swivel point and pipe 34 which permits the coupling to be swung out of the way when it is desired to move the hose.
  • This end of the hose also is fitted on a trolley or carriage 36 which rides on tracks'38 extending the full length of the ramp 16.
  • the steel ripple of the float hose end is connected to a steel pipe 40 at the weld line 42.
  • FIG. 6 shows the pipe connected for cargo transfer with the carriage located at its extreme stern position.
  • a protective cage as shown by the dotted lines 48 in FIGS.
  • l- 3 may be provided at the stinger 20 for protecting the carriage against the environment of the sea when it is located at the stern of the float with the hose in its extended position.
  • This case may be made from steel. While a prefered arrangement has been shown for movement of the hose it is within the scope of this invention to employ various other suitable means.
  • the hose 18 is provided with check valves 52 at both ends. These valves are normally spring-loaded in a closed position for trapping the oil or other cargo within the pipe and hose when disconnected from the float and offtaker. The valves are maintained open either by pumping pressure or by external activation. Alternatively, bolted blind flanges (not shown) may be used alone or in addition to these valves.
  • the valves as shown in FIGS. 5 and 6 comprise a stem 54 slidably mounted in a'bearing block 56 which is carried by an annular internal rib 58 formed at the free ends of the pipe 40 and hose 18. At the end of the pipe and hose there is provided an opening 60 in the form of a truncated cone.
  • valve stem 54 The adjacent end of the valve stem 54 carries a valve seat 62 having a shape complementary to the opening 60.
  • the stem 54 is mounted for sliding movement in a bore 64 integral with the bottom of the steel pipe.
  • the opposite or guides 68 and 70 of the track 36 At the opposite or guides 68 and 70 of the track 36. As illustrated, the
  • tracks typically comprise steel I-beams. These rollers may be powered by a suitable drive to facilitate movement of the carriage. As best shown in FIGS. 4, 6 and 9, opposed pairs of the rollers 22 are spaced along the full length of the track 36 on support frames 70. The frames may be constructed so that track is formed as an integral part thereof. Each of the opposed rollers are disposed at an appropriate angle relative to a vertical plane passing through the longitudinal axis of the hose such that the concave portion of the rollers provide a seat for the hose on either side of its longitudinal axis at the bottom thereof. 4
  • a transverse opening '72 (see FIGS. 5 and 7) is provided in a lower downwardly extending plate 74 connected to the carriage. As shown in FIG. 5 this plate 74 also serves for securing the ends of the endless cable 42 to the carriage to accomplish the desired movement thereof.
  • Each of the roller support frames 70 are provided with aligned opposing slots or openings 76 and 78.
  • a locking or anchor pin 80 for locking the carriage in place is aligned with these slots.
  • This carriage locking arrangement is provided at extreme ends of the ramp and also may be provided at other suitable locations along the ramp.
  • the locking pin 80 (shown in its retracted position in FIG. 7) is urged through the three openings thus holding the carriage in place.
  • the locking pin it is within the scope of this invention for the locking pin to be operated by suitable hydraulic or pneumatic cylinder means. instead of manually; With this arrangement, the carriage may be locked in any one of a plurality of positions along the ramp depending upon the desired amount of hose to be payed out. Also, as shown in FIG. 7, the dot-dash position illustrates the swivel pipe swung out of the way and disconnected from the carriage steel pipe so that the carriage-can be moved in the desired direction.
  • a cargo transfer system for transferring cargo between floating members having cargo storage facilities thereon wherein one of said members comprises a floating terminal and a second of said members comprises a tanker, comprising, said floating terminal and said tanker moored in tandem relation, ramp means operably associated with said floatingterminal for the storage, retraction and paying out of a cargo transfer hose means adapted to be connected between said floating tenninal and said tanker, said ramp means including a track extending substantially the full length of said floating terminal, and carriage means mounted for movement between the extremities of said track and connected to said hose means for facilitating movement thereof along said track on said floating terminal.
  • a cargo transfer system according to claim 1 wherein said hose means includes normally closed valve means at both ends for trapping cargo therein when said hose means is inoperative for transferring cargo between said floating terminal and said tanker.
  • a cargo transfer system according to claim 1 wherein track includes rollers for facilitating movement of the hose means.
  • carriage includes a frame disposed in straddling relation to said hose means.
  • a cargo transfer system including means for releasably securing said carriage in place at least at twopredetermined locations on said track, wherein one of said locations is proximate the end of said ramp means closest to said tanker.
  • a cargo transfer system according to claim 6 wherein said carriage is adapted to be releasably secured on said track at positions intermediate the extremities thereof.
  • a cargo transfer system according to claim 6 wherein said means comprises a locking pin for operably engaging said carriage to hold it in place.
  • a cargo transfer system comprising a locking plate secured to said carriage and having a transverse opening therein and adapted to be aligned with a pair of opposed slots on either side thereof, whereby said locking pin will releasably secure said carriage in place when it slidingly engages said slots and said opening.
  • a cargo transfer system wherein said hose means comprises asteel pipe portion at one end thereof secured for movement with said carriage, one of said valve means being located at one end of said steel pipe and the other end of said steel pipe being secured to an end of said hose.
  • a cargo transfer system wherein said floating terminal is elongated in the direction in which said floating terminal and said tanker are moored, and said ramp means extends in the direction of elongation of said floating terminal.
  • a cargo transfer system according to claim 1 wherein said floating terminal comprises a vessel having an elongated hull configuration.
  • a cargo transfer system according to claim 13 wherein said floating terminal includes a main deck and said ramp is located on said deck of said floating terminal.
  • each of said floating members is elongated and has a main longitudinal axis, said axes being located in tandem relation one behind the other and said ramp means including said track extending in the same axial longitudinal direction as said members.
  • a cargo transfer system for transferring cargo between two floating vessels each of which has cargo storage facilities associated therewith, comprising one of said vessels being permanently moored and the second of said vessels moored in tandem lengthwise behind said one vessel, ramp means located on a main deck of said one vessel for the storage, retraction and paying out of cargo transfer hose means adapted to be con nected between said vessels for transferring cargo therebetween,.
  • said ramp means extending in longitudinal direction of said one vessel and including a track, carriage means mounted for movement along said track and connected to said cargo transfer hose means for moving said hose means along said track on said floating terminal, said carriage means being limited for movement only on said ramp means on said floating terminal.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Ship Loading And Unloading (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Pipeline Systems (AREA)
US00302528A 1972-10-31 1972-10-31 Tandem mooring-loading system Expired - Lifetime US3833032A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00302528A US3833032A (en) 1972-10-31 1972-10-31 Tandem mooring-loading system
CA182,995A CA993314A (en) 1972-10-31 1973-10-10 Tandem mooring-loading system
AU61280/73A AU479680B2 (en) 1972-10-31 1973-10-11 Tandem mooring-loading system
GB4773573A GB1434568A (en) 1972-10-31 1973-10-12 Tandem moorin-loading system
IE1838/73A IE38380B1 (en) 1972-10-31 1973-10-15 Patent of addition to (61) no.37244
NO4188/73A NO140292C (no) 1972-10-31 1973-10-30 Laaseanordning for anvendelse i et system til overfoering av last mellom flytende legemer
ES420121A ES420121A2 (es) 1972-10-31 1973-10-30 Un sistema de transferencia de cargamento para buques.
JP48121840A JPS4980792A (ja) 1972-10-31 1973-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00302528A US3833032A (en) 1972-10-31 1972-10-31 Tandem mooring-loading system

Publications (1)

Publication Number Publication Date
US3833032A true US3833032A (en) 1974-09-03

Family

ID=23168133

Family Applications (1)

Application Number Title Priority Date Filing Date
US00302528A Expired - Lifetime US3833032A (en) 1972-10-31 1972-10-31 Tandem mooring-loading system

Country Status (7)

Country Link
US (1) US3833032A (ja)
JP (1) JPS4980792A (ja)
CA (1) CA993314A (ja)
ES (1) ES420121A2 (ja)
GB (1) GB1434568A (ja)
IE (1) IE38380B1 (ja)
NO (1) NO140292C (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064820A (en) * 1976-07-30 1977-12-27 Single Buoy Moorings Inc. Apparatus for the marine transshipment of a liquid
FR2425373A1 (fr) * 1978-05-12 1979-12-07 Sea Terminals Procede de stockage et de transbordement de petrole provenant d'un puits situe au large et equipement pour la mise en oeuvre de ce procede
US4273066A (en) * 1978-03-13 1981-06-16 Sea Terminals Limited Oil storage vessel, mooring apparatus and oil delivery for the off-shore production of oil
WO1998032651A1 (en) * 1997-01-24 1998-07-30 Hitec Asa Arrangement for tankers
WO1999038761A1 (en) * 1998-01-30 1999-08-05 Navion As Floating loading hose
US6412433B1 (en) * 1998-02-10 2002-07-02 Navion As FSO loading/mooring
US20040106339A1 (en) * 2000-07-20 2004-06-03 Breivik Kare G System for transferring a load from ship-based production and storage units to dynamically positioned tankers
KR100434611B1 (ko) * 2001-06-15 2004-06-05 대우조선해양 주식회사 Ｌｐｇ 운반선의 해상 가스 치환 방법
FR2923453A1 (fr) * 2007-11-14 2009-05-15 Technip France Sa Installation de transfert d'un fluide entre un premier navire et un deuxieme navire flottant sur une etendue d'eau, ensemble de transport et procede assoces.
US20100279561A1 (en) * 2007-10-22 2010-11-04 Bluewater Energy Services B.V. Fluid transfer assembly
US20150197322A1 (en) * 2014-01-10 2015-07-16 Daniel Doig Carriage-on-track system for use in winching loads
CN105555654A (zh) * 2013-09-18 2016-05-04 国际壳牌研究有限公司 串列式和并列式系泊卸载系统及相关方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO174380C (no) * 1992-01-20 1994-04-27 Marine Consulting Group As Fluidumoverföringssystem
DE4321526B4 (de) * 1993-06-23 2005-08-18 Reichert, Heiko, Dipl.-Ing. Anordnung und Verfahren zur Tankernotentleerung von in Seenot geratenen Tankschiffen
GB2281060B (en) * 1993-08-19 1997-01-22 Creme One Organisation Limited A System for Recovering Oil from Tankers in an Emergency
RU2152889C1 (ru) * 1999-04-27 2000-07-20 Таланов Борис Петрович Устройство аварийного слива нефтепродуктов из танкера

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727650A (en) * 1971-02-22 1973-04-17 Gen Electric Co Ltd Transfer arrangements

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727650A (en) * 1971-02-22 1973-04-17 Gen Electric Co Ltd Transfer arrangements

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064820A (en) * 1976-07-30 1977-12-27 Single Buoy Moorings Inc. Apparatus for the marine transshipment of a liquid
US4273066A (en) * 1978-03-13 1981-06-16 Sea Terminals Limited Oil storage vessel, mooring apparatus and oil delivery for the off-shore production of oil
FR2425373A1 (fr) * 1978-05-12 1979-12-07 Sea Terminals Procede de stockage et de transbordement de petrole provenant d'un puits situe au large et equipement pour la mise en oeuvre de ce procede
WO1998032651A1 (en) * 1997-01-24 1998-07-30 Hitec Asa Arrangement for tankers
WO1999038761A1 (en) * 1998-01-30 1999-08-05 Navion As Floating loading hose
US6427617B1 (en) 1998-01-30 2002-08-06 Navion As Floating loading hose
US6412433B1 (en) * 1998-02-10 2002-07-02 Navion As FSO loading/mooring
US6817914B2 (en) * 2000-07-20 2004-11-16 Statoil Asa System for transferring a load from ship-based production and storage units to dynamically positioned tankers
US20040106339A1 (en) * 2000-07-20 2004-06-03 Breivik Kare G System for transferring a load from ship-based production and storage units to dynamically positioned tankers
KR100434611B1 (ko) * 2001-06-15 2004-06-05 대우조선해양 주식회사 Ｌｐｇ 운반선의 해상 가스 치환 방법
US20100279561A1 (en) * 2007-10-22 2010-11-04 Bluewater Energy Services B.V. Fluid transfer assembly
US9045199B2 (en) * 2007-10-22 2015-06-02 Bluewater Energy Services B.V. Fluid transfer assembly
FR2923453A1 (fr) * 2007-11-14 2009-05-15 Technip France Sa Installation de transfert d'un fluide entre un premier navire et un deuxieme navire flottant sur une etendue d'eau, ensemble de transport et procede assoces.
WO2009068768A1 (fr) * 2007-11-14 2009-06-04 Technip France Installation de transfert d'un fluide entre un premier navire et un deuxième navire flottant sur une étendue d'eau, ensemble de transport et procédé associés.
CN105555654A (zh) * 2013-09-18 2016-05-04 国际壳牌研究有限公司 串列式和并列式系泊卸载系统及相关方法
US20160236756A1 (en) * 2013-09-18 2016-08-18 Shell Oil Company Tandem and side-by-side mooring offlaoding systems and associated methods
US20150197322A1 (en) * 2014-01-10 2015-07-16 Daniel Doig Carriage-on-track system for use in winching loads
US9290247B2 (en) * 2014-01-10 2016-03-22 Daniel Doig Carriage-on-track system for use in winching loads

Also Published As

Publication number Publication date
IE38380L (en) 1974-04-30
NO140292B (no) 1979-04-30
ES420121A2 (es) 1977-11-16
GB1434568A (en) 1976-05-05
JPS4980792A (ja) 1974-08-03
CA993314A (en) 1976-07-20
AU6128073A (en) 1975-04-17
IE38380B1 (en) 1978-03-01
NO140292C (no) 1979-08-08

Similar Documents

Publication Publication Date Title
US6056478A (en) Pipelaying vessel and a method of converting a maritime vessel to a pipelaying vessel
US5944448A (en) Oil field installation with mooring and flowline system
EP2356018B1 (en) Floating multi-function unit for the offshore transfer of hydrocarbons
CA1196232A (en) Offshore process vessel and a method of operating same to receive oil and/or gas production from a subsea well
US5749758A (en) Vessel for production and/or loading/unloading and transport of hydrocarbons from offshore fields, and/or for carrying out well operations
US3774253A (en) Floating systems, especially mooring buoys, for anchoring to the sea-bed
US4436048A (en) Rotary transfer subsystems and tensioning assemblies for a process vessel
CN105899428B (zh) 船用流体输送的移动系统和方法
US3236267A (en) Method and apparatus for transferring fluid offshore
CN101492140A (zh) 铝合金双体船的吊运装置和整船下水的工艺方法
US10960958B2 (en) Device and method for securing a watercraft
NO140292B (no) Laaseanordning for anvendelse i et system til overfoering av last mellom flytende legemer
US3766938A (en) Cargo transfer system for a floating storage vessel and offtaker moored in tandem
KR100280022B1 (ko) 잠수된 적재 또는 하역용부이를 수용공간에 안내하는 장치
WO1994006678A1 (en) Method and apparatus for laying/recovery of lines on a seabed
US20120055388A1 (en) 2 step cam mooring system
EP0729882A1 (en) Mooring and flowline system
CA2513180A1 (en) Ice breaker, method and system for single-support mooring and servicing ships
CA2495936C (en) System for transferring liquid load to a tanker
US20040211485A1 (en) System for transferring oil from an offshore platform to a tanker
GB2310268A (en) Reel pipelaying vessel
US20240253743A1 (en) Mooring assembly
WO2004011837A1 (en) Method and apparatus for laying/recovery of lines on a seabed
AU713723B2 (en) Pipelaying vessel and a method of converting a maritime vessel to a pipelaying vessel
GB2286648A (en) Pipelaying vessel