Mooring Analysis Report for Jacket Installation - HD-2500 Barge Data

MOORING ANALYSIS REPORT FOR JACKET INSTALLATION
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3.0 BARGE DATA
3.1 Description of Barge
The main particulars and general arrangement of the HD-2500 barge are presented in
Table 3.1.1 and Figure 3.1.1.
Table 3.1.1 : Main particulars of the HD-2500
Designation Symbol Value Unit
Length Overall LOA 130 m
Breadth B 36.0 m
Depth to Main deck D 10.5 m
Draft T 5.5 m
Displacement W 24819.26 Ton
Longitudinal Center of Gravity from FP LCG 68.33 m
Vertical Center of Gravity VCG 6.88 m
Figure 3.1.1 : General arrangement of the HD-2500 barge

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3.2 Fairlead Coordinates
The fairlead coordinates of HD-2500 barge are referred in below figure & table.
Figure 3.2.1 : Fairleader view(on G-Moor CVF Information Report) for DWG.2000
Table 3.2.1 : Fairlead coordinates for DWG.2000
Line No.
Fairlead Number
Coordinates [m]
10-Mooring X Y Z
1 S1 7.38 65.00 10.5
2 S2 14.00 65.00 10.5
3 S3 18.00 -32.07 10.5
4 S4 18.00 -38.61 10.5
5 S5 (Not-deployed) 19.25 -62.40 10.5
6 P5 (Not-deployed) -13.58 -65.00 10.5
7 P4 -18.00 -41.00 10.5
8 P3 -18.00 -28.40 10.5
9 P2 -18.00 61.42 10.5
10 P1 -13.82 65.00 10.5
Notes: The above coordinates follows the G-MOOR axes system and it could be referred
in Section 3.3.

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The fairlead coordinates of HD-2500 barge are referred in below figure & table.
Figure 3.2.2 : Fairleader view(on G-Moor CVF Information Report) for DWG.2010 & 2020
Table 3.2.2 : Fairlead coordinates for DWG.2010 & 2020
Line No.
Fairlead Number
Coordinates [m]
10-Mooring X Y Z
1 S1 7.38 65.00 10.5
2 S2 14.00 65.00 10.5
3 S3 (Not-deployed) 18.00 55.15 10.5
4 S4 17.20 -66.20 10.5
5 S5 17.30 -66.30 10.5
6 P5 -13.58 -65.00 10.5
7 P4 -18.16 -66.68 10.5
8 P3 (Not-deployed) -18.00 55.83 10.5
9 P2 -18.00 61.42 10.5
10 P1 -13.82 65.00 10.5
Notes: The above coordinates follows the G-MOOR axes system and it could be referred
in Section 3.3.
Note that this is a 10
or 12 point moored
vessel and our
preference is not to
use the fairleads in
the last diagram
named as #3 and #8,
whereas in this
diagram, the same
numbers are shown
as port & starboard
bow breast anchors.
Need to get this
clarified with HHI

MOORING ANALYSIS REPORT FOR JACKET INSTALLATION
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3.3 Barge Coordinate System
The barge coordinate system and environmental headings are defined in below figure.
- Origin: Intersection of barge centreline, midships and baseline
- X axis : Positive to starboard
- Y axis : Positive to forward
- Z axis : Positive upwards from baseline (keel)
- Mooring line angle is measured from y-axis, positive clockwise
Figure 3.3.1 : G-Moor Coordinates System

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3.4 Mooring Line Characteristics
The type of mooring line is the DYNEEMA Rope. The mooring line characteristics are
presented in below figure and table.
Figure 3.4.1 : Mooring Line Configuration
1) 3.0” mm Anchor Chain (3m) : Component-1
Diameter 3.0” (76mm)
Minimum breaking load (ton) 485
Weight per unit length
(ton/m)
Air 0.132
Submerged 0.103
Axial Stiffness, EA (ton) 47,147.2
2) 2.5” Extension Wire (50m) : Component-2
Diameter 2.5” (63.5mm)
Minimum breaking load (ton) 278.0
Weight per unit length
(ton/m)
Air 0.018
Submerged 0.014
Axial Stiffness, EA (ton) 16,611.5
what's the length?