WO1998032651A1 - Dispositif pour petroliers - Google Patents

Dispositif pour petroliers Download PDF

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Publication number
WO1998032651A1
WO1998032651A1 PCT/NO1998/000019 NO9800019W WO9832651A1 WO 1998032651 A1 WO1998032651 A1 WO 1998032651A1 NO 9800019 W NO9800019 W NO 9800019W WO 9832651 A1 WO9832651 A1 WO 9832651A1
Authority
WO
WIPO (PCT)
Prior art keywords
tanker
ship
oil
transfer
transfer hose
Prior art date
Application number
PCT/NO1998/000019
Other languages
English (en)
Inventor
Knut Erik BØRSETH
Arne Smedal
Original Assignee
Hitec Asa
Pgs Offshore Technology 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 Hitec Asa, Pgs Offshore Technology As filed Critical Hitec Asa
Priority to AU58862/98A priority Critical patent/AU5886298A/en
Publication of WO1998032651A1 publication Critical patent/WO1998032651A1/fr

Links

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
    • 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 
    • 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
    • B63B2035/4486—Floating storage vessels, other than vessels for hydrocarbon production and storage, e.g. for liquid cargo

Definitions

  • the present invention relates to a device by a tanker, for example in the form of a storage tanker or a production ship for use in oil production from small and minor oil fields.
  • this tanker does not have to be formed as a production ship of the type conventionally used for small, socalled marginal, oil fields, as it is sufficient that the tanker has at least one storage tank for oil or other fluid which may be transferred through a flexible hose or an resil- iently flexible pipe line.
  • the tanker shall exhibit piping to enable transfer of oil/ liquid from its storage tank(s) to the storage tank of another tanker or to an installation for example on the shore.
  • the tanker according to the invention When the tanker according to the invention is configured as a production ship of the kind which may be moored to a socalled STL-buoy or similar device, the tanker will be provided with a first oil transfer system, at its front end configured and arranged to be connected to the pipe connection nozzle of the buoy, and leading aft, in which the outlet end of the first piping system aft may be located above the filling level of the storage tank.
  • An STL-buoy is a submerged buoyancy body with connection nozzle for at least one riser end, and is received in a downwards open, possibly vertically through recess in the fore part of the ship, whereby the ship may pivot on the vertical axis of the buoy, which thereby forms the mooring point of the ship, and whereby the buoy itself is held in position by means of anchors in the form of sloping hawsers anchored to the sea bed.
  • Tankers formed as such a production ship with mooring and oil transfer possibilities relative to said STL buoy are well known in themselves.
  • the tanker according to the invention may also be used as a regular cargo ship for oil from, for example, other production ships.
  • the tanker is provided with means for handling at least one oil transfer hose, freely suspended in use, so that other tankers or installations co-operating with the tanker shall not have to have a transfer hose of their own. This is because such hoses are partly very long and their weight and remaining unmanageability make them difficult to get into stand-by position and operating position.
  • the tanker according to the invention may in one important embodiment be built with a view to serving several production ships in one oil field. In such an application production ships, which are smaller than the conventional ones, may be built, as the storing capacity for oil may be provided by the tanker according to the invention.
  • the tanker according to the invention may thus be used as a storage tank for a production ship, or it may be used as a so-called shuttle tanker for several production ships.
  • the object of the present invention has been to provide a tanker of the initially mentioned kind, in which may be provided, in a simple manner, an oil/liquid transfer hose, freely suspended in use, between the stern or bows of the ship and another ship or installation.
  • a particular object of the present invention consists in the fact that said transfer hose from the stern or the bows of the ship may be provided by means of one hose.
  • said object is realised by means of a hose or flexible pipeline arranged longitudinally displaceable onboard the tanker and constituting said oil/liquid transfer hose, and the hose being, at least partly, freely suspended, and preferably placed on a guiding extending along the side of the ship's hull.
  • this transfer hose which for example may have a length of 150 - 250 metres, could be arranged in a guiding in the form of an upwards open trough-shaped groove which extends along substantially the whole longitudinal extension of the side of the ship's hull.
  • a guiding or directing means for the transfer hose may alternatively have the form of a series of pivotal supporting rolls.
  • a possibly displaceable belt may constitute a convenient guiding for the transfer hose.
  • the transfer hose may be pulled on to another vessel, a sea- based installation or another plant/installation to/from which it may be of interest to transfer oil/liquid by means of a wireline and winch, in a manner known in itself.
  • Winches may also be applied for pulling the transfer hose in one or the other of its two intended, mutually opposite directions of pull onboard the ship in accordance with the invention.
  • a winch may be used fore and aft, preferably with vertical axis of rotation.
  • Fig. 1 shows a schematic side-view of a tanker in the form of a production ship, from which the transfer of oil takes place over the stern thereof, to a tanker (for example a shuttle tanker) by the stem of the latter, and in which the production ship is moored to a submerged STL buoy;
  • a tanker for example a shuttle tanker
  • Fig. 2 shows the tanker/production ship according to Fig. 1, seen separately in side-view/vertical longitudinal section and on a somewhat larger scale than in Fig. 1;
  • Fig. 3 shows a plan view of the tanker/production ship in Fig. 2, seen from above;
  • Fig. 4 likewise shows, in side-view/vertical longitudinal section a tanker/production ship according to the invention, in which the transfer of oil/liquid takes place to the ship according to the invention by the stem thereof, from the storage tank of another, partly shown tanker;
  • Fig. 5 corresponds to Fig. 4, but here is shown the transfer of oil/liquid from the storage tank of the tanker/production ship according to the invention by stern thereof, to the storage tank of another partly shown tanker.
  • a tanker 10 according to the invention is configured, in a manner known in itself, as a production ship, and the production ship 10 communicates with a well head on the sea bed (not shown) .
  • a riser 12 is connected to an STL-buoy 14 having connecting devices for the upper end of said riser 12 and for an adjacent connecting end of a fixed piping system 16 whose opposite end opens into the storage tank 18 of the ship 10.
  • the STL-buoy 14 is kept in the submerged position by means of anchors in the form of slopingly directed hawsers 20, 20', each secured to the buoy 14 by one end and anchored to the seabed by the other end.
  • the buoy 14 is conical, tapering upwards, and engages a complementary recess 22 formed in an adjacent portion of the hull structure.
  • the device is such, that the ship 10 may turn freely about a mooring point which coincides with the vertical axis of respectively the buoy 14 and the recess 22.
  • Fig. 1 mainly serves to show that the tanker forming the basis of the invention, may in one embodiment take the form of such a production ship 10.
  • a fixed piping system 24 leads from the storage tank 18 to an aft connecting end 24'.
  • another tanker 10a is provided with fixed piping systems 16a leading from a storage tank (not shown) to a connecting end 24a' at the bows.
  • Fig. 3 such an oil/liquid transfer hose 26 is provided in an extended, substantially straight-line stand-by position alongside the ship.
  • the transfer hose 26 is defined in each axial end by a pipe coupling 26', 26".
  • Each of these pipe couplings 26' and 26" is arranged for liquidtight connection to respectively the connections 16', 24' of the ship itself, or to the ship/installation to or from which oil/liquid is to be trans- ferred.
  • the transfer hose 26 is placed in a guiding, which can take the form of a much elongated, upwards open trough 28.
  • the trough 28 for the hose 26 extends along one side of the ship, right to the vicinity of the bows or the stern, the trough ends being defined by the reference numerals 28' and 28", respectively.
  • the transfer hose 26 may extend along the axis A of the ship 10.
  • a hose 28 thus arranged along the side of the ship may easily be moved to the bows or stern of the ship, for example by means of winch operated 30, 31 wirelines or in another convenient manner.
  • winch operated 30, 31 wirelines or in another convenient manner When one hose end 26* or 26" has been pulled to the bows or stern area, it is pulled further on to the ship 10a or to an installation (not shown) in a manner known in itself, for example by means of a winch and wireline from the ship 10a.
  • the trough 28 according to the embodiment shown in Fig. 3 may form both a bed and a guiding, and in its bottom portion it may perhaps be provided with an underlying roller conveyor comprising a major number of successive rollers or wheels.
  • Other supporting structures, such as for example conveyor belts, may be used.

Abstract

Un pétrolier (109 comprend au moins une citerne pour le stockage temporaire de pétrole ou d'autre liquide, un système de tuyau de transfert de pétrole/liquide présentant un tuyau de transfert (26) qui peut être relié entre ledit pétrolier (10) et, par exemple, un autre pétrolier. Afin de permettre l'utilisation du même tuyau de transfert (16) lors du chargement/déchargement depuis la poupe ou la proue du bateau (10), ce dernier (10) est doté d'un tuyau de transfert (26) qui s'étend le long d'un côté de la coque du bateau et est monté de sorte qu'il mobile dans des sens opposés le long de son axe longitudinal.
PCT/NO1998/000019 1997-01-24 1998-01-21 Dispositif pour petroliers WO1998032651A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58862/98A AU5886298A (en) 1997-01-24 1998-01-21 Arrangement for tankers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO970301A NO970301L (no) 1997-01-24 1997-01-24 Anordning ved tankskip
NO970301 1997-01-24

Publications (1)

Publication Number Publication Date
WO1998032651A1 true WO1998032651A1 (fr) 1998-07-30

Family

ID=19900291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1998/000019 WO1998032651A1 (fr) 1997-01-24 1998-01-21 Dispositif pour petroliers

Country Status (3)

Country Link
AU (1) AU5886298A (fr)
NO (1) NO970301L (fr)
WO (1) WO1998032651A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038761A1 (fr) * 1998-01-30 1999-08-05 Navion As Tuyau de chargement flottant
WO2004048191A1 (fr) * 2002-11-19 2004-06-10 Technip France Installation de transfert de gaz liquefie et son utilisation
WO2008127117A1 (fr) * 2007-03-15 2008-10-23 Teekay Norway As Procédé et dispositif de couplage d'un pétrolier en mer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306582A (en) * 1969-11-19 1973-02-14 Inst Francais Du Petrole Floating installation having means for the storage and hancling of a flexible line
US3766938A (en) * 1972-01-26 1973-10-23 Exxon Research Engineering Co Cargo transfer system for a floating storage vessel and offtaker moored in tandem
US3833032A (en) * 1972-10-31 1974-09-03 Exxon Research Engineering Co Tandem mooring-loading system
US4064820A (en) * 1976-07-30 1977-12-27 Single Buoy Moorings Inc. Apparatus for the marine transshipment of a liquid
WO1993013977A1 (fr) * 1992-01-20 1993-07-22 Marine Consulting Group As Dispositif pour la manipulation d'elements allonges flexibles
WO1997009513A1 (fr) * 1995-09-08 1997-03-13 Hitec Marine A/S Gouttiere pour tuyau servant au transfert de petrole entre deux structures flottantes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306582A (en) * 1969-11-19 1973-02-14 Inst Francais Du Petrole Floating installation having means for the storage and hancling of a flexible line
US3766938A (en) * 1972-01-26 1973-10-23 Exxon Research Engineering Co Cargo transfer system for a floating storage vessel and offtaker moored in tandem
US3833032A (en) * 1972-10-31 1974-09-03 Exxon Research Engineering Co Tandem mooring-loading system
US4064820A (en) * 1976-07-30 1977-12-27 Single Buoy Moorings Inc. Apparatus for the marine transshipment of a liquid
WO1993013977A1 (fr) * 1992-01-20 1993-07-22 Marine Consulting Group As Dispositif pour la manipulation d'elements allonges flexibles
WO1997009513A1 (fr) * 1995-09-08 1997-03-13 Hitec Marine A/S Gouttiere pour tuyau servant au transfert de petrole entre deux structures flottantes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038761A1 (fr) * 1998-01-30 1999-08-05 Navion As Tuyau de chargement flottant
US6427617B1 (en) 1998-01-30 2002-08-06 Navion As Floating loading hose
WO2004048191A1 (fr) * 2002-11-19 2004-06-10 Technip France Installation de transfert de gaz liquefie et son utilisation
US7174931B2 (en) 2002-11-19 2007-02-13 Technip France Liquefied gas transfer installation and use thereof
WO2008127117A1 (fr) * 2007-03-15 2008-10-23 Teekay Norway As Procédé et dispositif de couplage d'un pétrolier en mer

Also Published As

Publication number Publication date
NO970301D0 (no) 1997-01-24
AU5886298A (en) 1998-08-18
NO970301L (no) 1998-07-27

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