sevan marine - ntnu · fpso floating production ... • at full utilization this represents 4,73...

www.sevanmarine.comSevan Marine Presentation September 2007

SEVAN MARINE

Marintekniske Dager, NTNU

25. Oktober 2007


Presentation

1. Introduction2. The Sevan Concept3. Gas to Wire


Business model focuses on core competences

BOO – Build Own and Operate


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


Internal Turret

TLPSemi

Spar

External Turret DisconnectableTurret

No turret, no swivel – Oil storageHigh deck load capacity

Excellent motions


Construction

• Efficient hull construction with highrepeatability around circle

• Standard panel and block fabrication• All structural members are of standarddimensions and quality

• Short construction time


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


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


Mooring System

Typical mooring pattern 3 groups, 3-4 lines in each group


4 Single Bed Cabins20 Double Bed Cabins4 4-bed cabinsPublic SpaceOffice SpaceFire Control StationCateringDry and Cold Provision StoreMain Control Room (MCR)LaundryStores

Accommodation


Motion Characteristics

Favourable motioncharacteristics comparedto FPSOs


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


Global solutions: the Sevan Technology can be applied in all offshore markets

Brazil

US Gulf

North Sea


Contract overview


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


FPSO Sevan Piranema - Client: PetrobrasTechnology developed in cooperation with Petrobras


FPSO Sevan Piranema -Naming ceremony, Aracaju Brazil, September 4. 2007


Sevan Hummingbird en route from China to Europe


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%


Reference Hardware Deliveries (continued)

Process plant for Sevan PiranemaClient: Sevan Marine


Design and engineering of Thermal Energy Concepts

Waste Heat Recovery Units for Sevan PiranemaClient: Sevan Marine


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)


Electric Power to an FPSO – Ref Skarv Case

http://www.adressa.no/


• 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


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


Sevan 650 540MW Powerplant – Arrangement (1 of 3)


Sevan 650 540MW Powerplant– Arrangement (2 of 3)


Sevan 650 540MW Powerplant– Arrangement (3 of 3)


Sevan EPOS Genaral Arrangement

SINTEF feasibility study


Typical Norwegian field development withpower supplied from shore


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)


The offshore storage principle: Sleipner

(Courtesy Statoil)

sevan marine - ntnu · fpso floating production ... • at full utilization this represents 4,73...

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