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SEVAN MARINE
Marintekniske Dager, NTNU
25. Oktober 2007
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Presentation
1. Introduction2. The Sevan Concept3. Gas to Wire
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Business model focuses on core competences
BOO – Build Own and Operate
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Gas Treatment PlantLNG, GTW, LPG, Power Terminal
MODUMobile Offshore Drilling
Unit
ACCOMMODATIONService platform
The Sevan Hull - the versatile technology
FSOFloating Storage
Offloading
FDPSOFloating Drilling Production
Storage Offloading
SICVSubsea Installation
Construction Vessel
FPSOFloating ProductionStorage Offloading
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Internal Turret
TLPSemi
Spar
External Turret DisconnectableTurret
No turret, no swivel – Oil storageHigh deck load capacity
Excellent motions
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Construction
• Efficient hull construction with highrepeatability around circle
• Standard panel and block fabrication• All structural members are of standarddimensions and quality
• Short construction time
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Cargo and Ballast system• Cargo/ ballast piping system concentrated
in center compartment• No piping in tanks• Valves and pipes accessible
for inspection and maintenance• Reduced cable and piping length• Shorter construction time
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Sevan Main Benefits
Concept• Scaleable for oil storage capacity• High deck load capacity/ stability reserves• No requirement for weathervaning
Avoiding complicated/costly turret swivel system
• Standard riser connections, umbilical and power cable terminations
• Accommodates large number of risers • Low investment for future risers
Operations• Less maintenance and risk of downtime
(No maintenance intensive turret or swivel)• High operability due to low heave and roll/pitch motions• Safe and efficient offloading
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Mooring System
Typical mooring pattern 3 groups, 3-4 lines in each group
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4 Single Bed Cabins20 Double Bed Cabins4 4-bed cabinsPublic SpaceOffice SpaceFire Control StationCateringDry and Cold Provision StoreMain Control Room (MCR)LaundryStores
Accommodation
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Motion Characteristics
Favourable motioncharacteristics comparedto FPSOs
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SEVAN DRILLER IDEAL FOR ULTRADEEP WATER OPERATIONS
• Ultra deepwater – storage capacity for 12,500 ft of risers
• Deck area of 5,800 m2
• Derrick for parallel casing buildup –optimized drilling efficiency
• Large deck area and high variable deck load capacity of more than 15,000 mT
• High storage capacity limiting need for re-supply
• Up to 160,000 bbls oil storage capacity• Flexible ballast system for compensation of
tidal changes• Station keeping by DP or mooring system• Transit speed up to 9 knots
CAPABLE OF DRILLING IN DEEPER WATER THAN ANY SEMI SUBMERSIBLE
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Global solutions: the Sevan Technology can be applied in all offshore markets
Brazil
US Gulf
North Sea
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Contract overview
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Sevan Hull Construction ProgramHull # Hull Size Hull Delivery Application Client Field/ Location
1 Sevan 300 2006 FPSO Petrobras Brazil2 Sevan 300 2007 FPSO Venture UK CNS3 Sevan 300 2007 FPSO Oilexco UK CNS4 Sevan 300 2008 FPSO Venture UK CNS5 Sevan 650 2008 Drilling Petrobras GOM6 Sevan 650 TBD TBD TBD TBD7 Sevan 300 TBD TBD TBD TBD
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FPSO Sevan Piranema - Client: PetrobrasTechnology developed in cooperation with Petrobras
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FPSO Sevan Piranema -Naming ceremony, Aracaju Brazil, September 4. 2007
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Sevan Hummingbird en route from China to Europe
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ORGANISATION
Sevan Marine ASA
Kanfa ASSevan Marine do Brasil Ltda
Sevan Production AS
(Piranema)
100%100%
80%
100%
Sevan Production Services Pte Ltd
(Chestnut)
Sevan Drilling Sevan Pte Ltd Singapore
100%100%
Sevan TBN Pte Ltd.(Shelley)
Sevan TBN Pte Ltd.(Pilot)
Kanfa TEC
Kanfa Aragon
Mator80%
80%
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Reference Hardware Deliveries (continued)
Process plant for Sevan PiranemaClient: Sevan Marine
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Design and engineering of Thermal Energy Concepts
Waste Heat Recovery Units for Sevan PiranemaClient: Sevan Marine
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Sevan – typical hull sizes
Typical Main Dimensions:Storage Displacement Draft Deck Area
(bbl) (mt) (m) (m2) Hull Deck
Sevan 300 300 000 55 000 18 60 64 3 220 Sevan 650 650 000 110 000 22 75 80 5 020 Sevan 1000 1 000 000 165 000 28 84 90 6 360 Sevan 2000 2 000 000 305 000 33 106 114 10 200
Diameter (m)
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Electric Power to an FPSO – Ref Skarv Case
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• Power production from locally produced gas • Transmission lines to platform cluster and/or shore• Combined cycle (gas/ steam turbines)• The Sevan 650 GTW consists of
– 8 Siemens SGT800 Gas Turbine generator sets– Heat Recovery Steam Generators (HRSG)
4 Steam Turbine generator sets• Plant power capacity is 540 MWe net• At full utilization this represents 4,73 TWh/year• Plant efficiency is 54% (Air/ Seawater temp 15/7 degC)• Estimated gas consumption is 2 MM SM3/day• CO2 handling feasible (ref study with SINTEF)• Net power capacity after CO2 removal is 450MW• Net efficiency after CO2 removal is 45%• CO2 injection into subsea reservior (facilitates IOR initiatives)
Sevan 650 540MW Powerplant – Main Characteristics
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Generic solvent, well established modelsOffered by Fluor Daniel and moreFull scale gas cleaning unit will be
integrated with the floating structureMain gas cleaning unit comprises four
absorber columns and one desorber column
Carbon Capture - Principles
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Sevan 650 540MW Powerplant – Arrangement (1 of 3)
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Sevan 650 540MW Powerplant– Arrangement (2 of 3)
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Sevan 650 540MW Powerplant– Arrangement (3 of 3)
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Sevan EPOS Genaral Arrangement
SINTEF feasibility study
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Typical Norwegian field development withpower supplied from shore
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Typical Norwegian field development withpower supplied from shore
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Proposed alternative solution - Case HaltenHEIDRUN
DRAUGEN
ÅSGARD
KRISTIN
NJORD
Trondheim
Kristiansund
HEIDRUN
ÅSGARD
KRISTIN
NJORD
POWERGASCO2
Halten Offshore powerplant•Located close to Draugen•Suggested 540 MW capacity•Run on gas from Haltenpipe and/ orDraugen/ Åsgard transport pipe
•Can supply power to:•Draugen•Heidrun•Åsgard•Kristin•Njord
•Surplus power to grid ashore•CO2 removal from fuel gas onboard•CO2 pipelines to Draugen andHeidrun for IOR initiatives
(Similar setup would also be relevant forTampen area with location close toGjøa)
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The offshore storage principle: Sleipner
(Courtesy Statoil)