AB CD Lloyd’s Register Asia SHIPYARDS: Differences between Tankers and FPSO Specification Dr....
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Lloyd’s Register Asia ASIA OIL & GAS ASIA OIL & GAS SHIPYARDS: Differences between Tankers and FPSO Specification Dr. Alwyn M Dr. Alwyn M c Leary, Leary, Senior Surveyor, Lloyd’s Register ASIA, Singapore Senior Surveyor, Lloyd’s Register ASIA, Singapore Office, Office, (+65) 63704505 (+65) 63704505 [email protected] [email protected]
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Transcript of AB CD Lloyd’s Register Asia SHIPYARDS: Differences between Tankers and FPSO Specification Dr....
Lloyd’s Register Asia
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AS SHIPYARDS:
Differences between Tankers and FPSO Specification
Dr. Alwyn MDr. Alwyn MccLeary, Leary,
Senior Surveyor, Lloyd’s Register ASIA, Singapore Office,Senior Surveyor, Lloyd’s Register ASIA, Singapore Office,
(+65) 63704505 (+65) 63704505
[email protected]@lr.org
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Outline a simplified model representing the FPSO Classification process
Validated the proposition that there is a lack of agreement between the shipyard tanker/FPSO specifications
Identify the key issues
Identify the gaps
Discuss the progress to date in closing these gaps
Outline a way forward
Presentation (20mins) Discussion (10mins)
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InstallationModification
RefineDesign
Review Comments
ProjectSpecification
(Client)
Vendor Specifications/
Practices
Design Appraisal
Design to Design to Rules/CodesRules/Codes
Rule + Rule + Service Service HistoryHistory
ExperienceExperience
==
REGULATORY REGULATORY ISSUESISSUES
FEED FEED ReviewReview
FPSO Classification Model
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FPSO
HullTopsides
Heli-deck & Safety Systems
Process &
Utilities System
Marine Systems
Hull Structure
International Codes & Standards
LR Rules
LR Rules +
International Codes / Standards
InterfacesInterfaces
Mooring
FPSO Classification Model (Codes and Standards)
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Depends who you ask?
Generally an “interface” issue (Discipline Project Management)
Hull (shipbuilding standards + FPSO-Specific Loadings)
Everything else (offshore standards)
But majority of the project assembled in a shipyard
Regulatory Issues Govern
Proposition: there exists a lack of agreement between shipyard tanker/FPSO specifications? YES/NO
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Key Issues
Regulatory Requirements
Interface (problems on previous projects)
Physical
Code/Specification
Contractual
FPSO-Specific Loadings based approval (Site- & Operational-Specific Loadings)
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Regulatory Requirements
Coastal State Authority and National Authority (National Administrations) requirements regarding applicable codes and standards (and dates/versions) govern and requires to be defined at the outset (e.g. SOLAS, MARPOL, Loadline, Tonnage). PMA?
If the vessel will disconnect and sail under own power then there may be two sets of requirements to be met (will require to be Flagged). The most onerous for individual systems will govern.
At present no clear universal Regulatory requirements for FPSOs established.
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Interface Problem Areas Escape and access routes, particularly
configuration of ladders, etc
Tank entry requirements (in operations), PMA
Is MARPOL, SOLAS and LOADLINE applicable
NDT requirements based on code compliance at interface
Tolerances at interface
Hazardous Area definition
Drgs. with lines detailing the extent of responsibility?
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Environmental Criteria: Site-specific100 Year Joint Probability Contours
2 6 10 14 18 22 26 304
6
8
10
12
14
16
18
2020
4
Hs12 i
Hs22 i
Hs32 i
302 TP12 i TP2
2 i TP32 i
West of West of ShetlandShetland
Northern Northern North SeaNorth Sea
Central Central North SeaNorth Sea
Hs
Tp
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Strength: Site Specific WSF(for harsh environment)
0 50 100 150 200 250
D istan ce from A ft Perp en d icu lar (m )
Shea
r F
orce
D eep D raft
100 Year
Ligh t D raft
LR Ru le
LR FOIFL Rule, LR FOIFL Rule, RequirementRequirement
LR Ship Rule, LR Ship Rule, RequirementRequirement
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Gaps Tendency to “re-invent the wheel” (not learning
from previous projects)
80% of Problems due to 20% of Causes (Ref. 1), Project Management and Contracting are Key Elements
Harmonisation of Regulatory Requirements
Specification Definition (defining interfaces), FPSO/JTP Future Alignment
Interface Management (point 2 above)
Physical, Code, Contractual
Ref. 1: “Capturing Lessons Learned During FPSO Projects”, JR Still, The Naval Architect, January 2004, pp19-22.
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Progress in Closing Gaps
Lloyd’s Register Group works closely with FPSO Lloyd’s Register Group works closely with FPSO clients to identify potential interface problems at clients to identify potential interface problems at an early stage in the project (e.g. FEED Review).an early stage in the project (e.g. FEED Review).
Continuous Rule development and internal R&D Continuous Rule development and internal R&D activities as well as participation in various JIPs activities as well as participation in various JIPs over a number of years (e.g. FPSO-Specific over a number of years (e.g. FPSO-Specific Loadings Project, + future planning of alignment Loadings Project, + future planning of alignment with JTP).with JTP).
Preparation of Guidance Notes expanding Rule Preparation of Guidance Notes expanding Rule requirements and identifying important requirements and identifying important considerations (e.g. LR Group Guidance Note considerations (e.g. LR Group Guidance Note “FPSO INSTALLATIONS – AN OVERVIEW OF “FPSO INSTALLATIONS – AN OVERVIEW OF REGULATORY ISSUES”, OS/GN/99001).REGULATORY ISSUES”, OS/GN/99001).
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Way Forward
Industry Driven Harmonisation of Regulatory Requirements
Lessons Learnt Exchange Between FPSO Owners/Operators (FPSOForum is probably already effective in this area)
Alignment of Future JTP based Tanker Rules and FPSO Design Apprasial Processes (Increased Transparency in Loading Assessment)
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Summary
FPSO’s - NOT JUST A TANKER WITH SOME EQUIPMENT ON DECK!
REGULATORY ISSUES GOVERN (NO CLEAR SET OF REGULATIONS APPLY)
MANAGEMENT OF VARIOUS INTERFACES VERY IMPORTANT
FPSO-SPECIFIC LOADINGS ALIGNMENT TO FUTURE JTP RULES?
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ContactAlwyn McLearyAlwyn McLearySenior SurveyorSenior SurveyorLloyd’s Register ASIA, Singapore Office,Lloyd’s Register ASIA, Singapore Office,Tel:Tel: (+65) 63704505(+65) 63704505Email: [email protected]: [email protected]
Alastair H Jones Alastair H Jones Oil and Gas Business Manager ASIAOil and Gas Business Manager ASIALloyd’s Register ASIA, Singapore Office,Lloyd’s Register ASIA, Singapore Office,Tel:Tel: (+65) 63704552(+65) 63704552Email: [email protected]: [email protected]
