WO2000078599A1 - Chain attachment apparatus - Google Patents

Chain attachment apparatus Download PDF

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Publication number
WO2000078599A1
WO2000078599A1 PCT/EP2000/005578 EP0005578W WO0078599A1 WO 2000078599 A1 WO2000078599 A1 WO 2000078599A1 EP 0005578 W EP0005578 W EP 0005578W WO 0078599 A1 WO0078599 A1 WO 0078599A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
chain
single point
point mooring
arm
Prior art date
Application number
PCT/EP2000/005578
Other languages
French (fr)
Inventor
Marinus Uittenbogaard
Original Assignee
Bluewater Terminal Systems N.V.
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 Bluewater Terminal Systems N.V. filed Critical Bluewater Terminal Systems N.V.
Priority to AU56831/00A priority Critical patent/AU5683100A/en
Publication of WO2000078599A1 publication Critical patent/WO2000078599A1/en

Links

Classifications

    • 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
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B63B21/10—Fairleads
    • 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
    • B63B21/18—Stoppers for anchor chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/04—Fixations or other anchoring arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/20—Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class
    • B63B2221/22—Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class by means that allow one or more degrees of angular freedom, e.g. hinges, articulations, pivots, universal joints, not otherwise provided for in this class

Definitions

  • the present invention relates to an improved apparatus for attaching a chain, steel wire, man-made fibre wire, cable or the like or cable to a floating single point mooring structure or vessel.
  • a major problem with these prior art chain connections is that there is only one axis about which the attachment means of each chain is able to rotate.
  • any attachment means which has its axis of rotation parallel to the axis of motion of the floating single point mooring structure or vessel can also rotate.
  • any attachment means which has its axis of rotation deviating from the axis of motion of the floating single point mooring structure or vessel cannot rotate sufficiently and as a result a large amount of wear can occur in the chains. Particularly in very deep water when large chain pretensions are used, this can generate unacceptable wear conditions on the chain.
  • the present invention provides apparatus for connecting a chain to the non-rotatable part of a floating single point mooring structure which defines a first axis about which the rotatable part of the structure can rotate, comprising a securement member for receiving and securing the end of a chain to the single point mooring structure and being pivotally attached to the single point mooring structure for rotation about a second axis which is perpendicular to the first axis, and about a third axis which is perpendicular to the second axis and which is movable relative to the first axis.
  • the first axis is substantially vertical in use and the second axis is substantially horizontally in use.
  • the securement member comprises a tube receiving an end portion of the chain and a gripping device to secure the end portion in the tube.
  • the tube may be curved and the lower end of the tube may be splayed.
  • the tube is secured to an arm and the arm is pivotally attached to the single point mooring structure.
  • a link is preferably pivotally mounted on the single point mooring structure by a first pin and the arm is pivotally mounted on the link by a second pin perpendicular to the first pin, whereby the arm and link are together rotatable about the first pin relative to the single point mooring structure and the arm is rotatable about the second pin relative to the single point mooring structure and the link.
  • the longitudinal axis of the arm may be substantially aligned with the axis of the opening at a lower end of the tube and may intersect the second axis and be perpendicular to the third axis.
  • the third axis may intersect the second axis.
  • FIGURE 1 is a schematic diagram of a turret buoy
  • FIGURE 2 is a schematic diagram of a turntable buoy
  • FIGURE 3 is a schematic diagram of an F(P)SO internal turret
  • FIGURE 4 is a schematic diagram of an F(P)SO external turret
  • FIGURE 5 is a schematic diagram of a prior art arrangement showing a turret buoy and risers suspended by riser hang-off legs;
  • FIGURE 6 is a schematic diagram of a turret buoy incorporating a chain attachment apparatus in accordance with one embodiment of the present invention
  • FIGURE 7a is an enlarged view of the chain attachment apparatus shown in Figure 6;
  • FIGURE 7b is an enlarged view of the apparatus shown in Figure 7a in the direction of arrow X;
  • FIGURE 8 is a side view of a second embodiment of chain attachment apparatus in accordance with the present invention.
  • a floating single point mooring is composed of a rotatable member and a non-rotatable member, connected to each other so that the vertical centreline of the non-rotatable member coincides with the vertical axis of rotation of the rotatable member.
  • the non- rotatable member is kept in position by means of anchor legs.
  • the non-rotatable member also facilitates the entry of submarine flexible or steel riser pipes, flowlines or umbilicals.
  • the anchor legs can be composed of steel or man-made fibre wire, cable or chain. Often the top section connected to the non- rotatable member of the floating single point mooring is a chain.
  • FIG. 1 One example of a floating single point mooring is a turret buoy as illustrated in Figure 1, in which a turret T is rotatably mounted in a floating buoy B.
  • the turret T is anchored by chains C and receives riser R.
  • the buoy B can rotate about the turret T.
  • a second example of a floating single point mooring is a turntable buoy as illustrated in Figure 2.
  • a floating buoy B in anchored by chains C and receives riser R.
  • a turntable TT is rotatably mounted on top of the buoy B and includes a fluid swivel S for receiving the end of the riser R.
  • a third example of a floating single point mooring is a turret moored floating production and offloading unit.
  • a turret T is rotatably mounted to a floating vessel V, either internally as in Figure 3, or externally as in Figure 4.
  • the turret is anchored by chains C and receives riser R.
  • the vessel V can rotate about the turret T.
  • FIG. 5 shows a typical prior art chain attachment arrangement applied to a turret buoy.
  • the rotatable member is the buoy body 1 and the non- rotatable member is the turret 2 with a spider 3 underneath.
  • the turret 2 is anchored to the seabed by anchor legs 4 attached to the spider 3.
  • the rotatable buoy body 1 allows the attachment of vessels such as tankers 5.
  • the buoy body 1 and turret 2 with spider 3 therefore provide a single point mooring structure about which the vessel 5 can freely weathervane in response to wind, current and waves.
  • a product transfer system 6 allows products to be transferred between the vessel 5 and the subsea riser 7.
  • the subsea riser 7, in the form of a steel or flexible pipe, flowline or umbilical may be supported from the spider 3 by means of a riser hang-off leg 8 which may be a chain, a steel wire or man-made fibre wire.
  • the attachment to the spider 3 is typically in the form of a known chain attachment apparatus, such as a conventional articulated chain stopper 9 which allows rotation relative to the non-rotatable turret 2 and spider 3 about a single pivot axis only. Such a device may also be used to connect the anchor legs 4 to the spider 3.
  • FIG. 6 A first embodiment of the present invention is illustrated in Figure 6.
  • a single point mooring structure in the form of a turret buoy is fitted with a chain attachment apparatus in accordance with one embodiment of the present invention.
  • the buoy body 1 can rotate relative to the turret 2 and spider 3 about a first vertical axis V in the direction of arrows A.
  • each anchor leg 4, or of the riser hang-off leg 8 is attached to the non-rotatable spider 3 by securement means 10.
  • the securement means 10 is made up of a chain receiving tube 11 and an arm 12.
  • the chain receiving tube 11 receives the top end portion of the chain 4.
  • the tube 11 may be curved so as to redirect the chain 4 from the angled orientation in which it enters the tube 11 into a substantially vertical position. In this way an upper part of the chain 4, for example during the initial anchoring procedure, can be winched in and out from the floating single point mooring structure.
  • a conventional chain gripper 13 mounted on top of the tube 11 is closed, securing the chain 4 and allowing the portion of the chain 4 extending above the tube 11 to be severed.
  • the lower end of the chain receiving tube 11 may be splayed as illustrated to facilitate entry of the chain 4 into the tube 11.
  • the chain receiving tube 11 is rigidly secured to an arm 12.
  • the arm 12 is pivotally attached to the spider 3 for rotation about two mutually perpendicular axes.
  • a link 14 is pivotally attached to the spider 3 by a first pivot pin 15, which is substantially horizontal.
  • the arm 12 is pivotally attached to the link 15 by a second pivot pin 16 oriented at 90° to the first pivot pin 15. In this way, the arm 12 and the link 14 are together able to pivot about a second axis H, defined by the first pivot pin 15, relative to the spider 3. This pivoting movement is illustrated by arrows B.
  • the arm 12 is also able to pivot about a third axis M, defined by the second pivot pin 16, relative to the link 14 and the spider 3. This movement is illustrated by arrows C.
  • the second axis H and the third axis M are perpendicular to one another, the second axis H being substantially horizontal.
  • the second axis H is fixed perpendicular to the first axis V about which the rotatable part of the floating single point mooring structure, in this case the buoy body 1, rotates.
  • the angle of the third axis Irrelative to the first axis V varies depending upon the pivotal movement of the arm 12 and link 14 about the second axis H.
  • the longitudinal axis L of the arm 12 preferably intersects the second axis H.
  • the longitudinal axis L is preferably coincident with the axis of the opening to the lower end of the chain receiving tube 11 and substantially coincident with the axis of the chain 4 as it enters the chain receiving tube 11.
  • the chain attachment apparatus 10 is able to accommodate movement of the whole single point mooring structure irrespective of the direction of the waves, wind and/or current acting on it and excessive wear on the chain is avoided. It will be apparent to those skilled in the art that variations and modifications may be made to the exact configuration described and illustrated without departing from the scope of the invention. The invention may of course be used to connect a cable rather than a chain and the precise configuration of the chain receiving tube 11, the arm 12 and its pivotal attachments can be altered provided the required freedom of movement is achieved.
  • FIG 8 a second embodiment of chain attachment apparatus is illustrated in Figure 8, which uses like reference numerals to Figures 7a and 7b.
  • the chain receiving tube 11 is straight and has its longitudinal axis coincident with that of the arm 12.
  • the third axis M intersects the second axis H.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

Apparatus (10) for connecting a chain (4, 8) to the non-rotatable part (2) of a single point mooring structure which defines a first axis (V) about which the rotatable part (1) of the structure can rotate (said apparatus), comprising a securement member (11, 12, 13) for receiving and securing the end of a chain (4, 8) to the single point mooring structure and being pivotally attached to the single point mooring structure for rotation about a second axis (H) which is perpendicular to the first axis (V), and about a third axis (M) which is perpendicular to the second axis (H) and which is movable relative to the first axis (V).

Description

CHAIN ATTACHMENT APPARATUS
The present invention relates to an improved apparatus for attaching a chain, steel wire, man-made fibre wire, cable or the like or cable to a floating single point mooring structure or vessel.
In the offshore oil and gas production industry it is frequently necessary to connect a chain or the like to a floating single point mooring structure or vessel, such as a tanker loading buoy, floating production vessel, spar buoy, semi-submersible etc) . These chain connections are often used to connect anchor lines but could also be used to connect flexible or steel riser pipes, flowlines or umbilicals, as for example in UK Patent Application 9806521.2.
A major problem with these prior art chain connections is that there is only one axis about which the attachment means of each chain is able to rotate. When the floating single point mooring structure or vessel rotates in response to, for example, waves approaching from a particular direction, any attachment means which has its axis of rotation parallel to the axis of motion of the floating single point mooring structure or vessel can also rotate. However, any attachment means which has its axis of rotation deviating from the axis of motion of the floating single point mooring structure or vessel cannot rotate sufficiently and as a result a large amount of wear can occur in the chains. Particularly in very deep water when large chain pretensions are used, this can generate unacceptable wear conditions on the chain. The present invention provides apparatus for connecting a chain to the non-rotatable part of a floating single point mooring structure which defines a first axis about which the rotatable part of the structure can rotate, comprising a securement member for receiving and securing the end of a chain to the single point mooring structure and being pivotally attached to the single point mooring structure for rotation about a second axis which is perpendicular to the first axis, and about a third axis which is perpendicular to the second axis and which is movable relative to the first axis.
Preferably, the first axis is substantially vertical in use and the second axis is substantially horizontally in use.
In the preferred embodiment, the securement member comprises a tube receiving an end portion of the chain and a gripping device to secure the end portion in the tube.
The tube may be curved and the lower end of the tube may be splayed.
Preferably, the tube is secured to an arm and the arm is pivotally attached to the single point mooring structure.
In addition, a link is preferably pivotally mounted on the single point mooring structure by a first pin and the arm is pivotally mounted on the link by a second pin perpendicular to the first pin, whereby the arm and link are together rotatable about the first pin relative to the single point mooring structure and the arm is rotatable about the second pin relative to the single point mooring structure and the link.
The longitudinal axis of the arm may be substantially aligned with the axis of the opening at a lower end of the tube and may intersect the second axis and be perpendicular to the third axis.
The third axis may intersect the second axis.
The invention will now be described in detail, by way of example only, with reference to the accompanying drawings in which:
FIGURE 1 is a schematic diagram of a turret buoy; FIGURE 2 is a schematic diagram of a turntable buoy;
FIGURE 3 is a schematic diagram of an F(P)SO internal turret;
FIGURE 4 is a schematic diagram of an F(P)SO external turret;
FIGURE 5 is a schematic diagram of a prior art arrangement showing a turret buoy and risers suspended by riser hang-off legs;
FIGURE 6 is a schematic diagram of a turret buoy incorporating a chain attachment apparatus in accordance with one embodiment of the present invention; FIGURE 7a is an enlarged view of the chain attachment apparatus shown in Figure 6;
FIGURE 7b is an enlarged view of the apparatus shown in Figure 7a in the direction of arrow X; and
FIGURE 8 is a side view of a second embodiment of chain attachment apparatus in accordance with the present invention.
A floating single point mooring is composed of a rotatable member and a non-rotatable member, connected to each other so that the vertical centreline of the non-rotatable member coincides with the vertical axis of rotation of the rotatable member. The non- rotatable member is kept in position by means of anchor legs. The non-rotatable member also facilitates the entry of submarine flexible or steel riser pipes, flowlines or umbilicals. The anchor legs can be composed of steel or man-made fibre wire, cable or chain. Often the top section connected to the non- rotatable member of the floating single point mooring is a chain.
One example of a floating single point mooring is a turret buoy as illustrated in Figure 1, in which a turret T is rotatably mounted in a floating buoy B. The turret T is anchored by chains C and receives riser R. The buoy B can rotate about the turret T.
A second example of a floating single point mooring is a turntable buoy as illustrated in Figure 2. Here a floating buoy B in anchored by chains C and receives riser R. A turntable TT is rotatably mounted on top of the buoy B and includes a fluid swivel S for receiving the end of the riser R.
A third example of a floating single point mooring is a turret moored floating production and offloading unit. In this case a turret T is rotatably mounted to a floating vessel V, either internally as in Figure 3, or externally as in Figure 4. The turret is anchored by chains C and receives riser R. The vessel V can rotate about the turret T.
Figure 5 shows a typical prior art chain attachment arrangement applied to a turret buoy. The rotatable member is the buoy body 1 and the non- rotatable member is the turret 2 with a spider 3 underneath. The turret 2 is anchored to the seabed by anchor legs 4 attached to the spider 3. The rotatable buoy body 1 allows the attachment of vessels such as tankers 5. The buoy body 1 and turret 2 with spider 3 therefore provide a single point mooring structure about which the vessel 5 can freely weathervane in response to wind, current and waves.
A product transfer system 6 allows products to be transferred between the vessel 5 and the subsea riser 7. The subsea riser 7, in the form of a steel or flexible pipe, flowline or umbilical may be supported from the spider 3 by means of a riser hang-off leg 8 which may be a chain, a steel wire or man-made fibre wire. The attachment to the spider 3 is typically in the form of a known chain attachment apparatus, such as a conventional articulated chain stopper 9 which allows rotation relative to the non-rotatable turret 2 and spider 3 about a single pivot axis only. Such a device may also be used to connect the anchor legs 4 to the spider 3.
A first embodiment of the present invention is illustrated in Figure 6. In this example a single point mooring structure in the form of a turret buoy is fitted with a chain attachment apparatus in accordance with one embodiment of the present invention. As described above, the buoy body 1 can rotate relative to the turret 2 and spider 3 about a first vertical axis V in the direction of arrows A.
As best seen in the enlarged views of Figures 7a and 7b, the top end of each anchor leg 4, or of the riser hang-off leg 8, is attached to the non-rotatable spider 3 by securement means 10. The securement means 10 is made up of a chain receiving tube 11 and an arm 12.
The chain receiving tube 11 receives the top end portion of the chain 4. The tube 11 may be curved so as to redirect the chain 4 from the angled orientation in which it enters the tube 11 into a substantially vertical position. In this way an upper part of the chain 4, for example during the initial anchoring procedure, can be winched in and out from the floating single point mooring structure. When the single point mooring structure has been suitably positioned, a conventional chain gripper 13 mounted on top of the tube 11 is closed, securing the chain 4 and allowing the portion of the chain 4 extending above the tube 11 to be severed.
The lower end of the chain receiving tube 11 may be splayed as illustrated to facilitate entry of the chain 4 into the tube 11.
The chain receiving tube 11 is rigidly secured to an arm 12. The arm 12 is pivotally attached to the spider 3 for rotation about two mutually perpendicular axes. Specifically, a link 14 is pivotally attached to the spider 3 by a first pivot pin 15, which is substantially horizontal. The arm 12 is pivotally attached to the link 15 by a second pivot pin 16 oriented at 90° to the first pivot pin 15. In this way, the arm 12 and the link 14 are together able to pivot about a second axis H, defined by the first pivot pin 15, relative to the spider 3. This pivoting movement is illustrated by arrows B.
The arm 12 is also able to pivot about a third axis M, defined by the second pivot pin 16, relative to the link 14 and the spider 3. This movement is illustrated by arrows C.
The second axis H and the third axis M are perpendicular to one another, the second axis H being substantially horizontal. Thus, the second axis H is fixed perpendicular to the first axis V about which the rotatable part of the floating single point mooring structure, in this case the buoy body 1, rotates. However, the angle of the third axis Irrelative to the first axis V varies depending upon the pivotal movement of the arm 12 and link 14 about the second axis H.
As best seen in Figure 7a, the longitudinal axis L of the arm 12 preferably intersects the second axis H. In addition, the longitudinal axis L is preferably coincident with the axis of the opening to the lower end of the chain receiving tube 11 and substantially coincident with the axis of the chain 4 as it enters the chain receiving tube 11.
In this way, the chain attachment apparatus 10 is able to accommodate movement of the whole single point mooring structure irrespective of the direction of the waves, wind and/or current acting on it and excessive wear on the chain is avoided. It will be apparent to those skilled in the art that variations and modifications may be made to the exact configuration described and illustrated without departing from the scope of the invention. The invention may of course be used to connect a cable rather than a chain and the precise configuration of the chain receiving tube 11, the arm 12 and its pivotal attachments can be altered provided the required freedom of movement is achieved.
For example, a second embodiment of chain attachment apparatus is illustrated in Figure 8, which uses like reference numerals to Figures 7a and 7b. Here, the chain receiving tube 11 is straight and has its longitudinal axis coincident with that of the arm 12. In addition, the third axis M intersects the second axis H.

Claims

CLAIMS :
1. Apparatus for connecting a chain to the non- rotatable part of a single point mooring structure which defines a first axis about which the rotatable part of the structure can rotate, comprising a securement member for receiving and securing the end of a chain to the single point mooring structure and being pivotally attached to the single point mooring structure for rotation about a second axis which is perpendicular to the first axis, and about a third axis which is perpendicular to the second axis and which is movable relative to the first axis.
2. Apparatus as claimed in claim 1, wherein the first axis is substantially vertical in use and the second axis is substantially horizontally in use.
3. Apparatus as claimed in claim 1 or claim 2, wherein the securement member comprises a tube receiving an end portion of the chain and a gripping device to secure the end portion in the tube.
4. Apparatus as claimed in claim 3, wherein the tube is curved.
5. Apparatus as claimed in claim 3 or claim 4, wherein a lower end of the tube is splayed.
6. Apparatus as claimed in any of claims 3-5, wherein the tube is secured to an arm and the arm is pivotally attached to the single point mooring structure .
7. Apparatus as claimed in claim 6, wherein a link is pivotally mounted on the single point mooring structure by a first pin and the arm is pivotally mounted on the link by a second pin perpendicular to the first pin, whereby the arm and link are together rotatable about the first pin relative to the single point mooring structure and the arm is rotatable about the second pin relative to the single point mooring structure and the link.
8. Apparatus as claimed in claim 6 or claim 7, wherein the longitudinal axis of the arm is substantially aligned with the axis of the opening at a lower end of the tube.
9. Apparatus as claimed in any of claims 6-8, wherein the longitudinal axis of the arm intersects the second axis and is perpendicular to the third axis .
10. Apparatus as claimed in any preceding claim, wherein the third axis intersects the second axis.
PCT/EP2000/005578 1999-06-17 2000-06-16 Chain attachment apparatus WO2000078599A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56831/00A AU5683100A (en) 1999-06-17 2000-06-16 Chain attachment apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9914193A GB2351058A (en) 1999-06-17 1999-06-17 Chain attachment apparatus
GB9914193.9 1999-06-17

Publications (1)

Publication Number Publication Date
WO2000078599A1 true WO2000078599A1 (en) 2000-12-28

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GB (1) GB2351058A (en)
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US6663320B1 (en) * 2002-09-25 2003-12-16 Single Buoy Moorings Inc. Anchor line connector
WO2006024763A1 (en) * 2004-08-06 2006-03-09 Technip France Anchoring system for installing in a surface moved according to high-frequency movements
CN101659315A (en) * 2008-08-08 2010-03-03 蓝水能源服务有限公司 Mooring chain connector assembly for a floating device
WO2012038539A2 (en) 2010-09-23 2012-03-29 Single Buoy Moorings Inc. Retractable chain connector
US8967913B2 (en) 2010-09-23 2015-03-03 Single Buoy Moorings Inc. Retractable chain connector

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GB2443618B (en) * 2006-11-09 2008-12-24 Bluewater Energy Services Bv Mooring chain connector assembly and elongate member for application therein
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GB2496860B (en) * 2011-11-22 2014-03-19 Subsea 7 Ltd Tensioning and connector systems for tethers
GB2512312B (en) * 2013-03-25 2015-04-29 Ftl Subsea Ltd Subsea connector comprising male and female portions
WO2016118006A1 (en) * 2015-01-20 2016-07-28 Sbm Schiedam B.V. Spread moored chain connector and floating structure comprising such a chain connector
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US6663320B1 (en) * 2002-09-25 2003-12-16 Single Buoy Moorings Inc. Anchor line connector
WO2004028893A1 (en) * 2002-09-25 2004-04-08 Single Buoy Moorings Inc. Anchor line connector
WO2006024763A1 (en) * 2004-08-06 2006-03-09 Technip France Anchoring system for installing in a surface moved according to high-frequency movements
US7395771B2 (en) 2004-08-06 2008-07-08 Technip France Anchoring system for installing in a surface moved according to high-frequency movements
CN101659315A (en) * 2008-08-08 2010-03-03 蓝水能源服务有限公司 Mooring chain connector assembly for a floating device
WO2012038539A2 (en) 2010-09-23 2012-03-29 Single Buoy Moorings Inc. Retractable chain connector
US8967913B2 (en) 2010-09-23 2015-03-03 Single Buoy Moorings Inc. Retractable chain connector
US9011046B2 (en) 2010-09-23 2015-04-21 Single Buoy Moorings Inc. Retractable chain connector
EP3181440A1 (en) 2010-09-23 2017-06-21 Single Buoy Moorings Inc Retractable chain connector

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GB2351058A (en) 2000-12-20
AU5683100A (en) 2001-01-09

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