EP0820927A3 - Mooring systems - Google Patents

Mooring systems Download PDF

Info

Publication number
EP0820927A3
EP0820927A3 EP97305520A EP97305520A EP0820927A3 EP 0820927 A3 EP0820927 A3 EP 0820927A3 EP 97305520 A EP97305520 A EP 97305520A EP 97305520 A EP97305520 A EP 97305520A EP 0820927 A3 EP0820927 A3 EP 0820927A3
Authority
EP
European Patent Office
Prior art keywords
line
anchor
mooring
attached
swivel unit
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.)
Withdrawn
Application number
EP97305520A
Other languages
German (de)
French (fr)
Other versions
EP0820927A2 (en
Inventor
Arne Johansen
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.)
Ugland Engineering AS
Original Assignee
Ugland Engineering AS
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 Ugland Engineering AS filed Critical Ugland Engineering AS
Publication of EP0820927A2 publication Critical patent/EP0820927A2/en
Publication of EP0820927A3 publication Critical patent/EP0820927A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B63B22/026—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids and with means to rotate the vessel around the anchored buoy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

A mooring system for the mooring of a tanker or production vessel at an offshore oil production site comprises a plurality of anchor lines, for example four (1,2,3,4), each having a sea-bed anchor at its distal end, an anchor line assembly unit (5) through which passes at least one (2,3) of the anchor lines and to which each of the other anchor lines (1,4) is secured at its proximal end, a swivel unit (6) to which the proximal end of each passing anchor line (2,3) is attached, and a sub-surface buoyancy device (7) also attached to the swivel unit, each passing anchor line (2,3) having a stop member (12) for limiting the travel of the assembly unit (5) along the line in a direction towards its distal end. A mooring line (8) is also attached to the swivel unit (6), and a messenger line (9) having surface marker buoys (56) for location and pick-up of the mooring is attached to the mooring line. In a loading or production system at least one riser hose (10) is attached to the swivel unit (6) for communication through the swivel unit to a respective continuation hose (11) for connection to the moored vessel.
EP97305520A 1996-07-24 1997-07-23 Mooring systems Withdrawn EP0820927A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9615534.6A GB9615534D0 (en) 1996-07-24 1996-07-24 Mooring systems
GB9615534 1996-07-24

Publications (2)

Publication Number Publication Date
EP0820927A2 EP0820927A2 (en) 1998-01-28
EP0820927A3 true EP0820927A3 (en) 1998-10-21

Family

ID=10797427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97305520A Withdrawn EP0820927A3 (en) 1996-07-24 1997-07-23 Mooring systems

Country Status (5)

Country Link
EP (1) EP0820927A3 (en)
AU (1) AU3015297A (en)
CA (1) CA2211251A1 (en)
GB (1) GB9615534D0 (en)
NO (1) NO973425L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO309242B1 (en) * 1998-10-16 2001-01-02 Kongsberg Offshore As swivel
NO312358B1 (en) * 2000-07-20 2002-04-29 Navion Asa Offshore loading or production system for a dynamically positioned ship
US7793723B2 (en) 2006-01-19 2010-09-14 Single Buoy Moorings, Inc. Submerged loading system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111926A (en) * 1961-12-07 1963-11-26 Shell Oil Co Apparatus for anchoring underwater vessels
US3547067A (en) * 1967-11-27 1970-12-15 Nederlandse Offshore Co Device for raising an anchor
US4741716A (en) * 1987-02-12 1988-05-03 Mitsui Ocean Development & Engineering Co., Ltd. Mooring system
FR2646395A1 (en) * 1989-04-27 1990-11-02 Inst Francais Du Petrole Method and device for fishing out a submerged object
GB2250006A (en) * 1990-11-20 1992-05-27 Bluewater Terminal Systems Nv Vessel anchor system with extendible load limit device
GB2257405A (en) * 1991-06-27 1993-01-13 Bechtel Ltd Tether deployment system
WO1995001904A1 (en) * 1993-07-06 1995-01-19 Den Norske Stats Oljeselskap A.S. System for offshore production of hydrocarbons

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111926A (en) * 1961-12-07 1963-11-26 Shell Oil Co Apparatus for anchoring underwater vessels
US3547067A (en) * 1967-11-27 1970-12-15 Nederlandse Offshore Co Device for raising an anchor
US4741716A (en) * 1987-02-12 1988-05-03 Mitsui Ocean Development & Engineering Co., Ltd. Mooring system
FR2646395A1 (en) * 1989-04-27 1990-11-02 Inst Francais Du Petrole Method and device for fishing out a submerged object
GB2250006A (en) * 1990-11-20 1992-05-27 Bluewater Terminal Systems Nv Vessel anchor system with extendible load limit device
GB2257405A (en) * 1991-06-27 1993-01-13 Bechtel Ltd Tether deployment system
WO1995001904A1 (en) * 1993-07-06 1995-01-19 Den Norske Stats Oljeselskap A.S. System for offshore production of hydrocarbons

Also Published As

Publication number Publication date
NO973425L (en) 1998-01-26
GB9615534D0 (en) 1996-09-04
CA2211251A1 (en) 1998-01-24
EP0820927A2 (en) 1998-01-28
NO973425D0 (en) 1997-07-24
AU3015297A (en) 1998-02-05

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