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Disconnectable buoyant turret mooring system

A technology of mooring systems and buoys, applied in the direction of buoys, ship parts, ships, etc.

Active Publication Date: 2008-10-15
SINGLE BUOY MOORINGS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also no central single structure connector to open to quickly detach the buoy from the turret

Method used

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  • Disconnectable buoyant turret mooring system
  • Disconnectable buoyant turret mooring system
  • Disconnectable buoyant turret mooring system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] figure 1 The mooring system according to the invention is shown, wherein the ship 1 has a moon pool 5 and the turret 3 is suspended in rotation via axial centripetal bearings. The turret 3 is connected via a central connector 7' to the secondary connector 7 of the releasable buoy 6, and the releasable buoy 6 is anchored via anchor chain 9 to the seabed. The buoy 6 carries a number of risers 8 slidably supported through the buoy via I-tubes 11 and connected to the top of the buoy via connector elements or riser decks 12 . At the top of the riser 8 , the coupling element 10 comprises a mechanical connector for attaching to the pipe 17 on the deck of the ship 1 , and an ESD valve system for closing the riser 8 . After the structural connectors 7, 7' The trolley 20 can be pulled towards the deck level via the winch 14 above the deck level.

[0038] figure 2 The buoy 6 is shown in the connected state with the central structure connectors 7, 7' attached an...

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PUM

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Abstract

The present invention relates to a mooring system comprising a vessel (1) with a cavity (5) at a lower side (2) , a turret (3) extending from deck level (4) to the cavity, and a mooring buoy (6) releasably attached to the cavity via a coupling mechanism (7,7 ') , at least one riser (8) being supported by the mooring buoy, wherein the riser has at its end a coupling member (10) , the riser being slidable via an opening (11) in the buoy, a riser connector member (12) being attached to a movable transport member which can be displaced from a lower level to a higher level by a drive element (14, 16).

Description

technical field [0001] The buoy-turret moving system (BTM) is a detachable buoy-turret system in which the buoys are connected to a central structural connector at the lower end of the turret located in the moon pool of the ship . The buoy has a volume such that when the structural connector is opened the buoy will sink to a predetermined underwater level due to the weight of the attached anchor line. [0002] BTM for floating production storage and offloading (FPSO) requires the use of high pressure valves for risers connected to separable buoys, and an Emergency Shut Down (ESD) system. The ESD system will ensure quick release of pressure in case of emergency. Background technique [0003] In some existing BTM systems, these riser lines and the ESD valve system are located in an enclosed space within the turret, close to the structural connectors of the BTM. To avoid the risk of an outbreak in these enclosed spaces, ventilation of the enclosed space is required using mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B21/50B63B22/02
CPCB63B22/023B63B21/508
Inventor 吉恩·布朗德斯坦·维德拉德
Owner SINGLE BUOY MOORINGS INC