1. STUDY WAS PREPARED FOR PRE-FEED STUDY OF
WEST JAVA FSRU
JAKARTA, 11 MARCH 2011
Assessment & Compatibility Study of FSRU
Exemplar for an STS LNG Transfer with LNGC
Population in Market

2. Objectives
“…to build up confidence level to go with option
STS”
“…to set up design parameters for further
engineering process”

3. Compatibility of the manifold arrangements between
2 vessels i.e. exact location, spacing, height above
waterline
Design mooring arrangement, i.e. length overlap,
length off set between 2 vessels
Design parameter for Cryogenic Transfer hoses,
Yokohama fenders, etc
Issues involved

4. Codes & Guidance's
Recommendations for Manifolds for Refrigerated
Liquefied Natural Gas Carriers (LNG)
Mooring Equipment Guidelines
ICS, STS Transfer Guide (Liquefied Gases)
International Safety Guide for Oil Tankers & Terminals
STS LNG Transfer Guidelines

5. Four (4) different methods of STS LNG transfer
1. Double-banked adrift
2. Double-banked at anchor
3. Double-banked moored at a Gasport jetty
4. Double-banked moored to a Gateway STL buoy
Relatively less complexity compare to No. 1 & 2

6. Description Unit Dimension
Capacity m3 150,900
Length overall (LoA) m 291.0
Length between perpendicular (LBp) m 280.0
Breadth (B) m 43.4
Designed draft m 11.6
Summer draft m 12.4
Summer deadweight MT 83,125.0
Lightweight MT 34,227.3
Moulded displacement MT 117,352.3
Lightweight draft m 9.4
Membrane Type –
GT No.96 , Cat. B
Vessel (FSRU) Referral Design – Exemplar
OCIMF Recommendation

7. Vessel (FSRU) Referral Design – Exemplar
SCM BCM
144.6 m146.4 m
Right about amidships area

8. Vessel (FSRU) Referral Design – Exemplar
MHW
21.4 m
Ballast
What would be the designed arm length?
What would be the min diameter of Yoko fender applied?

9. Data Ranges & Observation
 Total 343 LNGC vessels data available for observation, updated by end of 2010
 Range LNGC Capacity from 1,517 Cbm up to 266,000 Cbm
 Vessels delivered in 1969 up to vessels delivered in 2010
 85% range data are intact, remaining are less intact
 Covering all types of containment systems
 Covering all Size Categories

10. Population of LNGC Fleet
The area of concerns would be in the population of LNGC with Spherical
type
 Almost all of Membrane type LNGC, manifolds were located at amidships
area

11. Population of LNGC Fleet
The area of concerns would be in the population of LNGC Cat. C, as
probably giving more Length off-set
 Abt. 20 Pct of LNGC Cat. C operated in the market now are ageing
 Cat. B sizes are the common market size

12. Membrane type is dominating most of the LNGC operating in
market nowadays (within productive ages), new vessels and new
buildings are tends to build using this type of containment.
Population of LNGC Fleet

13. Population of LNGC Fleet
Even within the group of Moss type LNGC, the no of vessels with
size of Cat. B (same category as FSRU) are dominating – similar
sizing group will most likely compatible in dimension

14. Data observations
An Over-lap configuration
Where The bow of FSRU 32.3 m away overlapping LNGC bow line
(X)

15. An Off-set configuration
Where The bow of LNGC 25.76 m away overlapping FSRU bow line,
for data observation purposes , value marked as minus (-)
(X)
Data observations

16. WL
MHW Lad
MHW Ball
(Y)
(Y) is a gap (clearance) of heights between FSRU’s manifold from
waterline at empty ballast and LNGC’s manifold from waterline at Laden
condition, this called as the extreme condition
Data observations

17. Findings & Conclusions
• The maximum deviation in length (X) is 68 m Overlap and (–) 26 m
Offsets
• The maximum gap out of the extreme condition is 1.8 m up to 17.75 m
• Only less than 5%, LNGC manifolds arrangement are designed not in
accordance to OCIMF recommendation, it does means that the spacing
gap between lines are likely not match with Exemplar’s
• Three (3) no of data's were put a side due to too small (out of range) i.e.
Kayoh Maru, Shinju Maru, Pioneer Knutsen.
• Market domination is Membrane type LNG at Cat. B size.

18. Executive Summaries
1. Confident that STS LNG Transfer of Exemplar for West Java FSRU is
a workable alternatives
2. Exemplar FSRU is likely compatible to most LNGC vessels in the
market at 85% confidence level.
3. Set-up design parameters for Jetty structures & Berthing facility i.e.
a) Length offset / overlap in the range of (+/-) 26 m (beyond FSRU
length)
b) Maximum gap (height clearance) is 17.75 m
4. Exemplar specification is a market common size & types.
5. A further risk assessment and vessel compatibility study still need to
be done on a case by case basis on each and every STS individual
planning

19. Bibliography
• Drewry, Annual LNG Market Report 2006
• BQ Market Search LNG, 2007
• Clarkson – Wikipedia, LNGC – March 2010
• Intertanko Q88, Heidenreich – End of 2010
• Lloyds Reg Fairplay, IHS 2010