fpso oto01073c

ANNEX E

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ANNEX E

Information on specific UK and North Sea FPSO and FSUInstallations

CONTENTS

1 Ailsa Craig FSO 32 Alba FSO 43 Anasuria FPSO 54 asgard A FPSO 115 Balder FPU 156 Berge Hugin FPSO 177 Bleo Holm FPSO 218 Captain FPSO 239 Douglas FSO 2510 Glas Dowr FPSO 2711 Gryphon A FPSO 2912 Jotun FPSO 3113 Maersk Curlew FPSO 3314 Nordic Apollo FSO 3515 Norne FPSO 3716 North Sea Producer FPSO 4117 Petrojarl 1 FPSO 4518 Petrojarl Foinaven FPSO 4719 Ramform Banff FPSO 5120 Schiehallion FPSO 5321 Triton 1 FPSO 5522 Uisge Gorm FPSO 5723 Varg FPSO 5924 Vinga FSO 61

KeyN/K Not KnownN/A Not ApplicableBlank Not Available

See Annex A for summary on individual UK FPSOs and FSUsSee Annex E for more detail World-wide FPSOs including other North Sea

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1 AILSA CRAIG FSO

Installed in North Sea 1989Retired 1996Operator SovereignEmerald Field, UK North Sea until 1996 - Now Ima Field Nigeria150m water depthNo TurretTripod WishboneNew Build

Detailed information not available

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2 ALBA FSO

Installed in field 1993Operator Chevron UKAlba Field, UK North SeaInternal Turret IPTTurret Supplier SBMPermanentFluid Transfer system (FTS): Multipath SwivelFTS supplier: SBMRoller bearingMain roller bearing is located at the bottom of the turret above chaintable (See cross sectiondrawing).12 wellsNew Build


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3 ANASURIA FPSO

Design Newbuild monohull FPSO

FieldLocation

Teal, Teal South, Guillemot AUK 21/25 (Teal, Teal South); 21/25, 21/30 (Guillemot A);Central North Sea, 305 km E of Aberdeen

CountryOperatorStatusDesignationPrevious Names:

UKShellProductionAnasuria

DutyStatus of UnitUnit OperatorOwner

Production, storage, offloading, accommodationProductionShell UK Exploration & Production Ltd.Shell Expro

Manager

EngineeringSBM Inc., Monaco (main contractor); Stork Protech, Holland (topsides engineeringsubcontractor); Mitsubishi Heavy Industries (barge subcontractor)

Build History Mitsubishi Heavy Industries, Nagasaki, Japan (bargesubcontractor); AMEC Process & Energy (subcontractor forturret and process system; integration of hull, turret andtopsides)

Conversion Engineering FPSO and mooring installation subcontract, Aker/Heerema;installation of tie-backs, flexible risers, Fulmar pipeline tie-in,McDermott; subsea facilities, Cooper Oil Tools, Leeds

Other main ContractorsOther Main ContractorsDelivery 24 August 1996 sailaway

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Basic DesignBASIC CONCEPTThe FPSO comprises a new build turret moored monohull vessel capable of continuousoperation in the CNS. A minimum service life of twenty years is required and it is envisagedthat the FPSO will be demobilised after ten years service for major survey, maintenance andrepair. The FPSO exports oil to the existing Shell/Esso fleet of shuttle tankers or to third partytankers. Tankers are moored astern to the FPSO during loading.The FPSO is connected to subsea production manifolds using flexible risers, flowlines andcontrol umbilicals. All FPSO systems, including the subsea systems, are monitored andcontrolled from a single control room by an integrated Control and Management System.

The main functions of the FPSO are summarized as follow: production of dead crude forexport by shuttle tanker; export of associated gases consistent with the Fulmar Gas Linerequirements; treatment of produced water prior to disposal overboard; provision of facilitiesfor water injection; provision of facilities for water injection; provision of utility systems forFPSO shipboard, topsides and subsea operations; space and weight provision for a futureidentical gas compression train, production separator, oil import and gas lift are included.

BARGE DESIGNThe barge is designed to receive, store and offload crude oil produced from subsea wells andtreated in the topside facilities. Minimum provisions to allow future import of stabilized crudeare provided. It is capable of storing 850,000 bbls of crude, based on 98% of full capacityexcluding the slop tanks. It is provided with a helicopter deck, accommodation space (whichfunctions as the TSR -- Temporary Safe Refuge) and a machinery space, all located at the sternof the barge.

The barge has a double hull consisting of side ballas tanks over the full length of the cargotanks, and a single bottom. The main hull is divided by bulkheads into the followingcompartments: fore peak water ballast; no. 1 side water ballast tank; cargo tanks and side waterballast tank; cofferdam; machinery room and double bottom space; aft peak water ballast tank.The cargo tank part is divided by transverse bulkheads into seven cargo oil tanks, and one pairof slop tanks. A centre line swash type bulkhead is provided in the cargo oil tanks. The centretanks are allocated to crude oil storage, while the wing tanks are used for seawater ballastexclusively.

The produced oil from the topsides is received with a decanting line to where final crudedehydration takes place. In this process the remaining water settles by gravity prior to beingdisplaced to one of the slop tanks for further treatment to allow overboard disposal.Dehydrated crude oil is then transferred to the dedicated oil storage tanks.

All tanks are designed for filling levels ranging from empty to full in terms of local tankstrength. During normal operation ballast tanks can be either full or empty to allow ease ofoperation. The barge is operated on an even keel condition in combination with ballastoperation with a slight trim by the stern during stripping operations.

The cargo tanks are equipped with individual submerged cargo offloading pumps. Crude oil isexported via a fiscal metering system to a tandem moored shuttle tanker. The cargo pipingsystem is designed to enable simultaneous reception of crude oil from the topside facilities andoffloading of the cargo. The cargo and slop tanks are equipped to allow crude oil washing,inerting, venting and gas freeing of any individual tank without affecting the safety or thecontinuity of crude oil production and storage. All cargo and ballast tank equipment andassociated systems are remotely controlled and monitored from the ICC (Installation ControlCentre) located within the TSR.

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Main Components Turret consisting of four sections, 1500 mt, Amec Process &Energy, Wallsend; 29 topsides modules, 100-200 tonnes.Swivel, IHC, KinderdijkProcessing topsides modules (22), 3500 mt, Amec Process &Energy, WallsendQuarters/helideck, Mitsubishi, NagasakiMain control room, 500 mt, Ferguson Seacabs, InverurieSwitchgear module, 500 mt, Ferguson Seacabs, Inverurie

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MooringThe turret benefits from the experience SBM Inc. have gained from their latest turret designs,and limits the number of critical mechanical components, such as the bearings, by using asingle roller bearing located at the optimum vertical position for weathervaning.

It consists of a chaintable structure anchored to seabed anchor piles via twelve catenarymooring anchor lines, able to limit excursions to 24 metres in extreme conditions. The anchorsystem consists of, from top to seabed: 110m chain attached to base of turret; clump weightconsisting of 150m x 6" double length chain; 30m x 6" chain; 700m x 5.5" Bridon sheathedspiral strand wire rope; 150m x 6" chain attached to 2.1m diameter x 31m long pile.

The chaintable structure is suspended from a heavy duty roller bearing which is locatedapproximately 7 metres above the keel of the FPSO. The 7m diameter triple race bearing,fabricated by RKS, is supported on the tanker side by a reinforced box structure integrated intothe forward part of the FPSO vessel's hull. A turret cylinder, housed in a 12.6m diameter welland extending upwards until some two metres above the vessel's main deck, is mounted to theearth-fixed side of the main bearing. The turret cylinder houses the riser 'I-tubes' and supportsthe turret main deck, the manifold platform, and the swivel deck together with the swivel stack,the mooring line and riser winches, and all the earth-fixed part of the rigid piping. A radialbearing assembly is used at tanker main deck level to absorb the radial loads caused by theaccelerations of the upper turret structural mass and to act as a radial bearing during a possibleoffshore change-out of the main bearing. The entire assembly including manifold platform andswivel extends some 30 metres above the main deck.

When the vessel moves off station, due to the effects of wind, wave and current, certain anchorlines are lifted. This generates a restoring force which returns the system to the equilibriumposition, thus limiting the vessel's excursion.

The turret mooring system is designed to securely moor the FPSO tanker in all sea states up toand including the survival sea state while allowing transfer of fluid products to and from thebarge.

Fluid transfer is achieved by flexible risers which are routed through the turret mooring andinterface, with rigid piping at manifold deck level. The product is then passed through toroidalswivels to the barge main deck and the process facilities. The swivel stack comprises, frombottom to top: space for future swivel (2 x 8"); space for oil production swivel (2 x 8"); oilproduction swivel for Teal South/Guillemot A (2 x 8"); oil production swivel for Teal (2 x 8");water injection swivel (1 x 8"); hydraulic/chemicals/vent swivel (multiple path);electrical/signal swivels (multiple path/dual units); gas export swivel (4" pipe swivel). Theturret's manifold area is protected from possible wave action (green water) by a raised bulwarkextension of the barge's bow.

A tubular steel overhead framework is positioned directly over the turret to provide access inorder to perform maintenance and operational functions. A 40 tonnes pedestal crane,supported by the FPSO vessel deck, serves the complete above deck turret to remove swivelsand perform other maintenance functions.

A hydraulic power unit, located on the FPSO deck, provides power via the swivel to activatethe several types of valves in the product lines.

Riser System The turret can accommodate up to 14 risers of variousdiameters; initially 6 risers and 2 umbilicals were installed.The flexible risers are supplied by Wellstream.

Other FeaturesDesign Life

Pigging facilities for production lines20 years

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Design Criteria Survival waves Hs 12.8m, Hmax 23.8m; wind (1 min. mean)37 m/s; surface current 1.06 m/s

Registration UK

Contact Shell UK Exploration and Production, 1 Altens Farm Road,Aberdeen. AB12 3FY, tel: 01224 882000; Single BuoyMoorings Inc., Engineering Office, 24 Avenue de Fontvieille,PO Box 199, MC 98007 Monaco Cedex, tel: (377) 92 05 1500, fax: (377) 92 05 32 22.

Anasuria FPSO

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Anasuria FPSO Swivel Courtesy SBM

Anasuria FPSO process pipework

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4 ASGARD A FPSO

Design Tentech 900 S design turret moored FPSO

FieldLocation

ÅsgardÅsgard field, Norway 6407/2, 6506/11, 6506/12, 6507/11,Haltenbanken area, off mid-Norway


NorwayStatoilConstructionÅsgard A


Production, storage, offloading, accommodationConstructionStatoilStatoil (60/5%); Agip (7.9%); Total (7.65%); Neste Oy (7%);Saga (7%); Mobil (6.15%); Norsk Hydro (2.6%); Deminex(1.2%)

Manager

EngineeringMaritime Tentech, Kristiansand (hull); Aker Engineering/ABB Offshore Technology, Oslo andAsker (topsides engineering); SBM (swivel)

Build History Hitachi Zosen, Ariake yard, Japan (hull and turret base,subconctract from Maritime Tentech); Aker Stord (maintopsides contractor)

Conversion Engineering Aker Stord (assembly and hookup); Aker Elektro (electricalsystems); Aker Marine/Maersk (JV) (installation on field);Coflexip Stena Offshore (flowlines, risers); Stolt ComexSeaway (subsea installation)

Other main ContractorsOther Main ContractorsDelivery November 1998 from Stord; February 1999 (installation on

field)

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Basic DesignThe FPSO will be a newbuild Tentech 900S design, and will be the world's largest floatingproduction ship (about 16 metres longer than Norne). The bid package consisted of three maincontracts: hull construction, topsides construction and assembling topsides to hull. Topsideswill consist of nine main packages.

Main Components Approx. 15,000 mt topsides load, including 12,600 dry weightof modules installed in lifts of up to 1200 metric tonneSeparation package: 3 x separation modules, Kvaerner Processsystems. Compression modules: 4 x compression modules,4400 mt, Belleli OffshorePower/compressor modules: Dresser RandCompact heat exchangers: HeatricQuarters/helideck: EmtungaFlare boom: 80m flare boom over stern, 210 mt, Aker VerdalSteel: 5000 mt structural steel, Norsk Stål

MooringTURRET: 26m diameter, 24 slots; upper turret 1200 mt, Aker StordSBM SWIVEL STACK: 13.1m high, consisting of (from bottom to top) four toroidal swivelsfor 12 " product, gas export and tes, two utility swivels with total 14 flow paths for heatingmedium, mehtanol, air, hydraulics, etc., a 550 kVA electrical swivel, a methanol injectionswivel and a gas injection swivelMOORING: Anchor spread consists of 12 chain & wire anchors

Riser System Coflexip flexible risers: 10 x 9-inch x 700m production (390bar, 130 C; 4 x 9-inch x 650m gas injection (500 bar, 90 C); 2x 11.62-inch x 600m gas export (170 bar, 90 C); 1 x 11.62-inchx 600m oil export (100 bar, 130 C); riser and umbilicallockdown system, Nymo; installation Rockwater/Saipem (JV)


Flare gas recirculating systemDesigned for 20 years field life with minimal requirement fordrydocking

Design CriteriaRegistration Norwegian

Contact Den norske stats oljeselskap a.s., Grenseveien 21, Postboks300, 4001 Stavanger, Norway, tel: +47 51 80 80 80, fax: +4751 80 44 70.

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Asgard A Swivel Stack

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5 BALDER FPU

Balder FPU Courtesy ESSO

Design Smedvig designed purpose built turret moored FPSO

FieldLocation

BalderBalder field, Norway blocks 25/10, 25/11


NorwayEssoConstructionBalder FPUSPU 380


Production, storage, offloading, accommodationConstructionEsso Norge A/SShip built on spec by Smedvig A/S; purchased from Smedvigby Esso

Manager Smedvig/Esso joint team will manage the ship after purchaseby Esso

EngineeringSmedvig

Build History Far East Levingston Shipbuilding (FELS), Jurong, Singapore;Offshore & Marine, Sandnes (installation and commissioningof topside facilities); further modifications to strengthen hulland turret and increase the number of risers undertaken by UIE

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at Scott Lithgow yard, Port Glasgow.

Conversion Engineering ABB Group (subsea facilities); Coflexip Stena Offshore(subsea installation); Smit Maritime Contractors (marineinstallation)

Other main ContractorsOther Main ContractorsDeliveryBasic DesignThe FPSO is purpose built to Smedvig's own design and specifications. It is turret moored anddesigned to maintain continuous oil production under harsh weather conditions. It has doublesides and a double bottom, and can handle up to 20 flexible risers. The vessel is also designedfor maximum flexibility with regard to future expansion of processing facilities.

Main Components Process and utility equipment is constructed as completemodules, and includes the following units: oil separation andproduced water; compression and gas reinjection; powergeneration; water injection; oil metering; chemical injection;HVAC; flare. The 700 mt module containing first and secondstage separators, electrostatic crude oil dehydrator and glycolunit was built by KPS [Kvaerner] at Port Klang, Malaysia.

Mooring10-point turret mooring system: each line containing 1220m x 92mm NV K4 chain and a 17-tonne Stevpris anchor, controlled by 5 double windlasses; turret diameter 17.2m, equippedwith a bearing system with rollers, pinion drive rotation control and a drag chain transfersystem; turret transfer system designed and built by Metool Tools; turret has a centralmoonpool for inspection and/or additional riser tubes and can rotate 270

Riser System Capacity for 26 risers; previous configuration had 15 risers inone metre diameter tubes.


Advanced waste disposal and sewage processing systems20 years

Design Criteria General Northern North Sea weather conditions

Registration Norwegian

Contact Esso Norge A/S Exploration & Production, Grenseveien 6, POBox 60, 4033 Forus, Norway, tel: +47 (04) 606060, fax: +47(04) 606124.

Balder FPU Turret

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6 BERGE HUGIN FPSO

Design Multipurpose shuttle tanker/FPSO used as FPSO

FieldLocation

PierceNorth Sea, Pierce field, UK 23/27 and 23/22a


UKEnterpriseProductionBerge Hugin


Production, storage, offloading, accommodationProductionEnterprise OilNavion/Bergesen D.Y. AS (50/50 ship owners); APS (50/50Aker Maritime/Statoil) owns and leases the process facilities.

Manager Pierce Production Company (PPC), consisting of: Statoil,Advanced Production Systems (APS) and Berge Huginpartnership (50/50 Navion and Bergesen)

EngineeringAdvanced Production Systems (APS) [Aker/Statoil] (production facilities); projectmanagement and systems engineering carried out by Aker Engineering, Oslo

Build History Samsung Heavy Industries, Koje (ship); Aker McNulty(topside facilities)

Conversion Engineering Smit Heavy Lift (modules installation); Coflexip (flexibleflowlines and risers); Cameron (wellheads and xmas trees);Rockwater (subsea installation)

Other main ContractorsOther Main ContractorsDelivery December 1996

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Basic DesignThe Berge Hugin is the first of a series of multipurpose shuttle tankers (MST) prepared forFPSO operation. The ship features a load-bearing deck to accommodate rapid installation ofproduction topsides; the facilities are contained in standardized modules which can easily betransferred to another similar ship if required. Topside facilities of up to 3500 mt in 100-200mt packages can be accommodated on the aft part of the deck. The MST has a double-skinnedhull and incorporates the submerged turret loading and production system developed byStatoil, APL and Framo.

As an alternative to FPSO use, the ship can be employed as a shuttle tanker. In this mode itcan stern load while moored to a buoy, storage unit or production system, or it can load on DPwithout anchoring. Alternatively, it can load via an STL (submerged turret loading) buoy asdeveloped by Statoil and partners and employed on several fields. It can also be used as anFSO with no further modifications.

The 'Berge Hugin' was initially taken to Blohm + Voss in Hamburg for about six weekspreparatory work, then to Aker McNulty on Tyneside for outfitting of process topsides.

Main Components Topsides consisting of eleven modules, weight about 5000tonnes; four of the modules were fabricated by Aker McNulty,which installed all eleven; other modules were supplied byProser, Baker Hughes Process Systems, Enerflex, KCCProcess Equipment and IKM.

MooringThe MST uses a DP system for positioning; mooring/loading in a production situation uses theAPS developed STL/STP system. The main component in submerged turret loading (STL) is abuoy which floats below sea level and is pulled into the bottom of a shuttle tanker beforeloading begins. Deployable in a range of water depths, the buoy incorporates a turret shaft and

riser swivel that allow the tanker to weathervane through 360° and remain bow-on to wind andwaves at all times. First adopted by Shell in 1993, STL is currently installed on 11 vessels.Submerged turret production (STP) involves a special disconnectable swivel that permits STLships to be converted easily for oil output. Multipurpose shuttle tankers use this solution inproduction mode. The swivel can transfer a multiphase wellstream containing oil, water andgas via a flexible riser into the weathervaning vessel. STP is suitable for developments basedon subsea production, and can be adapted for small or medium-sized fields, such as satellitereservoirs. On small fields, several risers from seabed wells can be tied to the swivel via thesubmerged buoy. It is also deployable in deep water. In the case of the Berge Hugin the ship ismoored using suction anchors.

Riser System Capacity for 10 risers or more; three 10 inch and one 8 inchflowline riser installed by Rockwater

Other FeaturesDesign LifeDesign CriteriaRegistration Norwegian

Contact Den norske stats oljeselskap a.s., Shipping & MaritimeTechnology, N-4035 Stavanger, Norway, tel: +47 51 80 80 80,fax: +47 51 80 89 10.

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Berge Hugin FPSO, Pierce field with STL offload SystemCourtesy APL

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7 BLEO HOLM FPSO

Design Bluewater

FieldLocation

RossRoss field, UK 13/28a, 13/29a, UK North Sea


UKTalismanProductionBleo Holm


Production, storage, offloading, accommodationProductionTalisman Energy (UK) Ltd.Owned, managed and operated by Bluewater, on lease toTalisman

Manager

EngineeringBluewater UK (main contract); Fluor Daniel (process equipment engineering, procurement,construction, outfitting, hookup & commissioning)

Build History Hitachi, Japan (base tanker hull newbuild); Lewis Offshore(turret); UIE (topsides); Consafe UK (quarters)

Conversion Engineering Smit Marine Contractors (mooring installation, tow-out andinstallation of FPSO); Stolt Comex Seaway (pipeline tie-in)

Other main ContractorsOther Main ContractorsDelivery September 1997 to UIE for completion; installation at field

February 1999

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Basic DesignThe FPSO is based on a standard double-hull tanker newbuild with the moonpool already inplace. Marine completion work consists mainly of: fabrication of turret deck housing, cranepedestals and module supports; installation of turret; fabrication of the accommodation andhelideck; installation of ship piping systems; installation of flare tower; installation ofoffloading equipment for crude transfer to shuttle tankers. The ship was transferred to UIEClydebank for installation of topsides and commissioning. There is enough free deck space leftto enable tie-in of possible future satellite developments.

Main Components 6000 metric tonne topsides installed on deck, incl. 1200quarters module.

MooringDESIGN: Bluewater designed internal bow turret mooring, free weathervaningMOORING LINES: 3 x 3 linesSWIVEL: Bluewater design swivel; fluid paths for gas, water, oil and test, up to 5000 psioperating pressure

Riser System Flexible risers and umbilical risers; maximum turret capacity18 slots.


20 years

Design Criteria 50 years survival conditions; design wave height (Hs) 12.9m;wave height (Hmax) 23.7m; max. hourly mean wind speed35.4 m/s

RegistrationContact Bluewater Offshore Production Systems Ltd., Stationstraat

202, 2910 Essen, Belgium, tel: +32 36700260, fax: +3236700269.

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8 CAPTAIN FPSO

Design Tentech 700 T (Maritime Group A.S.) turret moored FPSO

FieldLocation

CaptainCaptain field, UK block 13/22a, Moray Firth, 135 km NE of

Aberdeen at 58° 18'19.8"N, 1° 44'34.8"W


UKTexacoProductionCaptain FPSO


Production, storage, offloading, accommodationProductionTexaco North Sea UK Ltd.Texaco North Sea UK Ltd.

Manager Amec Process & Energy

EngineeringAstano (vessel); Maritime Seanor (turret); ABB Lummus Global (process)

Build History Astilleros del Noroeste SA (Astano), El Ferrol, Spain

Conversion Engineering Natco (process separation subcontract from ABB LummusGlobal); SHEFS, Grimsby (process modules subcontract fromNatco); Coflexip Stena Offshore (subsea installation)

Other main ContractorsOther Main ContractorsDelivery Launch 2 July 1996; sailaway 16 November 1996

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Basic DesignThe FPSO is a newbuild based on a conventional tanker hull. In addition to the normalprocessing and utilities, the ship also supplied electrical power to the wellhead platformadjacent.

Main Components Two main PAUs (600 mt each) for separation and watertreatment; total seven process modules fabricated by SHEFS(South Humberside Engineering and Fabrication Services)under contract from Natco; gravitational separators 20m long x6-8m diameter

Mooring8-point turret mooring system, including: 8 linear chain jacks; turret turning system; slidingbearing system; drag chain transfer system, including slots for Stages 1 & 2, with hosesinstalled for Stage 1, and future expansion possible by additional drag chain or swivel; 142 mmchain, 250m long; 134 mm coated wire, 1000m long; 2438 mm piles, typically 46m long withpile head driven one metre below seabed; mooring installed by Saipem ('M7000'); FPSO isable to weathervane 270 around turret

Riser System 20 riser tubes: 4 riser tubes for Stage 1; 5 riser tubes for Stage2; 11 slots free plus moonpool; Coflexip 16" and 14" risers


Designed to remain on station up to 20 years

Design Criteria 100-year North Sea storm conditions


Contact Texaco Ltd., 1 Westferry Circus, Canary Wharf, London E144HA, tel: 0171 719 3000.

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9 DOUGLAS FSO

Field Liverpool BayLocation Liverpool BayInstalled 1995Country UKOperator N/K

Production No TurretCALRAM Wishbone Structure


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10 GLAS DOWR FPSO

Design Newbuild tanker converted to FPSO

FieldLocation

Durward/DauntlessBetween Durward and Dauntless fields, UK 21/16, 21/11,Central Graben, 140 km E of Aberdeen


UKAmerada HessProductionGlas Dowr


Floating production, storage, offloadingProductionAmerada Hess Ltd.Owned by Bluewater, on lease to Amerada Hess for aminimum of four years

Manager Managed and operated by Bluewater, including wellheadcontrol.

EngineeringBluewater UK (main contract); Heerema Hartlepool (process equipment engineering,procurement, construction, outfitting, hookup & commissioning); ABB Lummus Global(topsides engineering subcontract)

Build History Namura Shipyard, Japan (base tanker newbuild); Harland &Wolff, Belfast (marine conversion); Lewis Offshore (mooringsystem)

Conversion Engineering Kvaerner Stolt Alliance (flowlines, manifolds); Smit MarineContractors (installation, hook-up)

Other main ContractorsOther Main ContractorsDelivery May 1996 delivery to Harland & Wolff; marine conversion

work completed by end November 1996 and transferred toHeerema for process equipment installation in early 1997;installation at field July 1997, by Stolt Comex Seaway(installation of mooring, FPSO and riser system)

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Basic DesignThe FPSO is based on a standard double-hull tanker newbuild. Marine conversion workconsists mainly of: fabrication of moonpool, turret deck housing, crane pedestals and modulesupports; installation of turret; fabrication of raised forecastle and helideck; modification ofship piping systems, engine room and living quarters; upgrading of coating systems;installation of flare tower; installation of offloading equipment for crude transfer to shuttletankers.

Main Components Five main process modules, total 4500 mt, heaviest 1200metric tonne

MooringDESIGN: Bluewater designed internal bow turret mooring, free weathervaning; turret diameter4.87m; fabrication by Lewis Offshore, StornowayMOORING LINES: 3 x 3 lines, each 1050m, consisting of: chain; Bridon galvanized/Galfanspiral strand wire, 114mm diameter, 9 x 600m; 30 mt Stevpris anchors, 1500 tonne holdingpowerSWIVEL: Bluewater design swivel, 4 fluid paths for gas, water, oil and test, up to 5000 psioperating pressure; max. swivel flow path diameter 10 inches

Riser System Flexible risers and umbilical risers; initally fitted with sevenrisers and two umbilicals; maximum turret capacity 15 slots


20 years

Design Criteria 50 years survival conditions; design wave heigh (Hs) 12.9m;wave height (Hmax) 23.7m; max. hourly mean wind speed35.4 m/s

RegistrationContact Amerada Hess Ltd, 33 Grosvenor Place, London SW1X 7HY,

tel: +44 (0)171 823 2626, fax: +44 (0)171 887 2199; BluewaterOffshore Production Systems Ltd., Stationstraat 202, 2910Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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11 GRYPHON A FPSO

Design Tentech 850C design turret moored FPSO

FieldLocation

GryphonGryphon field, UK block 9/18b, North Sea


UKKerr-McGeeProductionGryphon A


Production, storage, offloading, accommodationProductionKerr-McGee Oil (UK) Ltd.Kerr-McGee and partners

Manager Atlantic Power & Gas, Aberdeen (management and marineoperation)

EngineeringTentech International A/S

Build History Astano SA, El Ferrol, Spain

Conversion Engineering McNulty Offshore Services, Tyneside (main contractor fortopsides installation)

Other main ContractorsOther Main ContractorsDelivery September 1993 (installation on field)

Basic DesignThe vessel is a purpose built FPSO built to the Tentech 850C design without topsides. Most ofthe production equipment was mounted on a 3.5m high portal frame structure which extendsfrom the rear of the ship's turret to the fire wall forward of the poop deck structure; the majorskid mounted equipment includes: gas compressors, power generation, crude oil separation,produced water treatment, water injection, gas dehydration, export metering and chemicalinjection; fabrication of structures and installation of packages was carried out by McNultyOffshore Services, Tyneside; a flareboom was added, also fabricated by McNulty; the turrettransfer system was built by Metool Products Ltd, Nottingham; the 160 metric tonne carouselsupport structure was built by Swan Hunter Engineering Ltd, Wallsend.

Main Components

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MooringTurret mooring system with ten anchor legs, consisting of: five double winches on a dedicatedwinch deck; ten lines with 710 mt each holding power; each line initially 400m chain x 84 mmK4, with chain/wire extension to comply with site requirements; ten Vryhof Stevpris anchors,15 mt each; ship can rotate about the turret by 270 in either direction without damage to theturret-to-ship transfer system; turret diameter 19.8m ID; rotation and locking system consistingof hydraulic grippers on a plain ring; mooring lines have an emergency release system

Riser System Risers are handled through 10 x 1.1m diam. riser tubes in theturret periphery, and are connected to the chokes, manifoldsand injection headers on the turret manifold deck; additionalrisers can be handles through the 8m diam. central turretmanifold deck; risers connected to QC/DCs operatingindividually or simultaneously; top 80 ft of risers are furnishedwith buoyancy to avoid compression during drop, to avoiddamaging subsea installations, and for easy retrieval; see also:'Subsea Systems' below


Designed to remain on station up to 20 years

Design Criteria 100-year North Sea storm conditions; wave heights 26.5m


Contact Kerr-McGee Oil (UK) Ltd, 75 Davies Street, London W1Y1FA, tel: 0171 872 9700, fax: 0171 491 1377; TentechInternational AS, Dvergsnes, 4604 Kristiansand, Norway, tel:(038) 04 33 33, fax: (038) 04 04 70; Astano SA, Apartado deCorreos 994, 15480 Perlio-Fene, Ferrol (La Coruna), Spain,tel: (341) 431 38 71, fax: (341) 575 87 15.

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12 JOTUN FPSO

Design FPSO newbuild

FieldLocation

JotunJotun field, blocks 25/7, 25/8, 25/9, 15/11, Norwegian NorthSea


NorwayEssoConstructionJotun FPSO


Production, storage, offloading, accommodationConstructionEsso Norge ASEsso and field partners

Manager

EngineeringKvaerner Oil & Gas Norway (EPCIC); Aker/Transocean (conceptuals); Kvaerner Masa-Yards(engineering and procurement of hull); Bluewater (engineering and procurement of turret andmooring system); Kvaerner Engineering (engineering of topsides, incl. quarters and helideck)

Build History Kvaerner Masa-Yards, Finland (hull); Kvaerner Rosenberg,Stavanger (topsides); Lewis Offshore, Stornoway (turretmooring system); Consafe, Burntisland (quarters)

Conversion Engineering Installation at field, Bluewater/subcontractors; risers,umbilicals, flowlines to tie back WHP to FPSO, Rockwater

Other main Contractors

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Other Main ContractorsDelivery Tanker built 1997; installation on field early 1999

Basic DesignThe double-skinned hull is of conventional design, with special attention to enabling low costbuilding techniques to be employed. Topsides contain processing, living quarters, powergeneration, utility systems, safety and emergency systems, support communication, control,instrumentation and electrical systems, and a flare positioned aft.

Main Components Total of eleven main modules, including accomodationmodule, 850 mt, Consafe

MooringBluewater designed turret mooring system; fabrication of turret, spider, process deck andgantry by Lewis Offshore, Stornoway; 12-point mooring system

Riser System Capacity for 8 risers, plus 4 extra for third-party use; each riserconsists of unbonded flexible pipe with a single-layer nylonpressure sheath; they are configured in a lazy-S arrangementwhich uses two buoyancy arches 60 metres above the seabed;an umbilical transfers electricity, chemical injection andcontrol signals between FPSO and WHP


20 years

Design CriteriaRegistrationContact Kvaerner Masa-Yards, PO Box 666, SF-20101 Turku, Finland,

tel: +358 21 2666 111, fax: +358 21 2666 999; BluewaterOffshore Production Systems Ltd., Stationstraat 202, 2910Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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13 MAERSK CURLEW FPSO

Maersk Curlew FPSO Courtesy Shel UKl

DesignFieldLocation

CurlewCurlew D & B fields, UK block 29/7, 220 km E of Aberdeen at56 44.09'N, 1 17.80'E


UKShellProductionMaersk CurlewMaersk Dorset; Bin He; Dorthe Maersk


Production, storage, offloading, accommodation, gas exportProductionShell UK Exploration & Production Ltd.A.P. Møller

Manager FPSO leased from MASPRO (MAS Production Company), abusiness division of Maersk UK; work subcontracted byMASPRO to MAS Alliance, a JV of AMEC Process andEnergy, Single Buoy Moorings and Maersk; MASPRO willoperate the FPSO, subsea facilities and standby vessel(s)

EngineeringBuild History 1983, at Odense Steel Shipyard, Lindø, Denmark; tanker

supplied by A.P. Møller

Conversion Engineering Coflexip Stena Offshore (subsea facilities, installation)

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Other main Contractors MAS Alliance, consisting of: Maersk/SBM (vessel); AMEC(topsides)

Other Main Contractors A&P Offshore, Wallsend, Tyneside (conversion); Tyne TeesDockyard (below waterline subcontract); Wear Engineeering(subcontract for some steel fabrication); Amec, Tyneside(topsides/topsides support deck); SBM Inc. (mooring system,turret fabricated in Abu Dhabi)

Delivery Sailaway August 1997; installation on field August 1997

Basic DesignThe FPSO is a conversion of the tanker 'Maersk Dorset'. Marine conversion work mainlyinvolves: life extension and upgrade of the tanker for 10 years in water without drydocking;substantial modifications to the superstructure; installation of helideck; installation of internalturret mooring system, designed and built by SBM; installation of fire & gas detection;installation of tandem offloading equipment; installation of process equipment; and preparationfor later installation of water injection equipment. The work included installation of 50,000melectrical cabling, 3500m of pipework and 1725 tonnes of steel, as well as blasting andpainting more than 100,000 m2 of tanks. After initial marine conversion work at A&P thevessel was transferred to the Amec yard for installation of the topsides support deck, topsides,turret and pre-commissioning. The process modules are positioned 3.8m above the main deckto give maximum separation from storage tanks.

Main Components

Mooring9 x composite catenary anchor legs (3 x 3 groups); Bridon galvanized 6-strand wire rope,135mm diameter, 6 x 520m and 3 x 850m; anchor piles; installation CSO

Riser System Dynamic risers


Topsides 15 years on station; vessel 10 years on station;mooring 10 years

Design Criteria Survival in 100 year return period criteria

Registration Isle of Man

Contact Shell UK Exploration and Production, 1 Altens Farm Road,Aberdeen. AB12 3FY, tel: 01224 882000; Maersk Contractors,Floating Production Div., 50 Esplanaden, DK-1098Copenhagen K, Denmark, tel: +45 3363 3363, fax: +45 33634894.

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14 NORDIC APOLLO FSO

Nordic Apollo FSO with STL offloadingCourtesy Remontawa SA

Field Installation ConversionOperator Nordic Canadian Shipping/ Ugland Nordic Shipping ASField Banff, UKTurret Type STLTurret Supplier Advanced Production and Loading AS (APL)Swivel Type Compact SwivelSwivel Supplier Framo ASDetailed information not available

Nordic Apollo STL Base Cavity prior to installation Courtesy Rewontera SA/APL

E37

15 NORNE FPSO

Design Tentech 900 S design turret moored FPSO

FieldLocation

NorneNorne field, Norwegian block 6608/10, 200 km offshore midNorway, 85 km NE of Heidrun field


NorwayStatoilProductionNorne Production Vessel


Production, processing, storage, offloading, accommodationProductionStatoilStatoil (70% [direct state financial interest 55%]); NorskHydro Produksjon A/S (9%); Saga Petroleum A/S & Co (9%);Norsk Agip A/S (6%); Enterprise Oil Norge Ltd (6%)

Manager

EngineeringTentech International (pre-engineering and detail design vessel); Kvaerner Engineering(topside conceptual and detail engineering)

Build History Far East Levingston Shipbuilding (FELS), Singapore (Yard Nr.892); Kvaerner Rosenberg, Stavanger (turret)

Conversion Engineering Aker Stord (production facilities); Kvaerner Energy(generation, compression); Kongsberg Offshore (subseainstallations); Aker Stord/Aker Elektro (hookup &

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commissioning)

Other main ContractorsOther Main ContractorsDelivery 4 August 1996 from FELS

Basic DesignThe 'Tentech 850S' design for a turret moored FPSO is based on experience gained through theTentech 685 ('Petrojarl 1') and 850C ('Gryphon A') designs, both of which have beensuccessfully employed in the North Sea. The Norne FPSO is built using normal shipbuildingtechniques. The process modules and equipment are deck mounted and built according toonshore practices; they will be mounted on a deck 3.5m above the ship's cargo deck to providean air gap required for safety reasons. There are a total of 24 deck equipment packagesweighing approx. 12,000 tonnes in all.

Main Components 7810 mt topsides dry weight; separation, Kvaerner Process;heating and cooling medium, ABB Environmental NorskViftefabrikk; gas compression incorporating two gas turbinedriven injection compressors and an electrically poweredrecompression unit, Kvaerner Energy (General Electric LM2500/Nuovo Pignone); produced water treatment, KvaernerProcess, discharge water <40 ppm oil; water injection, FrankMohn; fiscal metering, Jordan Kent Metering Systems;chemical and methanol injection, Read Process Engineering;oil storage and offloading; emergency flaring only

Mooring12-point turret mooring system, non-disconnectable: turret 46.6m high, diam. 26.0m, weight5000 mt, fabricated by Kvaerner Rosenberg; each mooring line consists of: 4m diam. x 12mlong suction anchor with 1060m of 137 mm diam. K3 studless chain, 380m of 121 mm diam.platic coated spiral strand wire rope, 20m of 137 mm diam. K3 studless chain, 180m of 114mm diam. K4 studless chain; anchor lines held taut by hydraulic winches installed on turret;swivel consists of four 12 inch HP toroidal super duplex swivels (three production and onewater injection), plus one electrical swivel and one 8 inch pipe swivel for gas injection, 8.3mhigh, 2.2m diameter, weight 72 mt, fabricated by Single Buoy Moorings; assembly hookup byAker Stord

Riser System Total of 24 x 1400 mm riser tubes and 12 x 559 mm chaintubes arranged around turret; arrangement for Norne consistsof 6 x 9 inch oil production, 2 x 9 inch water injection, 1 x 8inch gas injection and 3 x integrated control umbilicals forchemicals and control systems; the three 730m dynamic LCUumbilicals with 2.5 cm centre tube are manufactured byAlcatel Kabel Norge


Hull structure 25 years; field life 20 years

Design Criteria 100 year significant wave height 16.8 metres; wind speed 45m/s; current (10m below) 0.91 m/s; min. air temperature -10 C


Contact Den norske stats oljeselskap a.s., Grenseveien 21, Postboks300, 4001 Stavanger, Norway, tel: +47 51 80 80 80, fax: +4751 80 44 70; Tentech International AS, Dvergsnes, 4604Kristiansand, Norway, tel: +47 38 04 33 33, fax: +47 38 04 0470.

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16 NORTH SEA PRODUCER FPSO

DesignFieldLocation

MacCullochMacCulloch field, UK block 15/24b, 250 km NE of Aberdeenat 58 19'25.2"N, 0 41'10.8"E


UKConocoProductionNorth Sea ProducerDagmar Maersk


Production, storage, offloading, accommodation, gas exportProductionConoco (UK) LtdNorth Sea Production Company (NSPC) (JV Maersk CompanyLtd/Tenenge SLP Engineering)

Manager NSPC

EngineeringBuild History Built as a bulk tanker in 1984 at Odense Steelshipyard/Lindø

Conversion Engineering Coflexip Stena Offshore (subsea) (subcontract from SLP);work includes installation of FPSO mooring system andhookup of the FPSO on site, connecting flexible risers to turret,and pre-commissioning the system

Other main Contractors ATA (Armstrong Technology Associates) (hull conversion);Bluewater Engineering (turret); Granherne Engineering(process/utilities)

Other Main Contractors A & P Offshore, Tyneside (life extension conversion work,incl. module support frames and moonpool); Lewis Offshore(turret); Brown Brothers (swivel); SLP Engineering (outfit andcommissioning of process and utility topsides)

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DeliveryBasic DesignThe tanker is a sister ship of the 'Dirch Maersk' converted by Bluewater for the Amerada Fifefield. Conversion work consists mainly of insertion of an internal turret in the forward tanks,the design, procurement and construction of the process and utility packages, and provision ofmooring and export lines and risers, as well as subsea work not directly connected to the ship.The deck to support the process equipment will be added three metres above the ship's maindeck; a total of 36 topsides packages were installed. A total of some 9000 tonnes of newstructure and process equipment were added for the conversion.

Main Components

MooringInternal turret mooring system with nine catenary chain/wire legs in three groups of three;Bridon galvanized spiral strand cables, 114mm diameter, 9 x 650m; 360 weathervaningcapability; turret and spider fabricated by Lewis Offshore, Stornoway; swivel stack 10m high,105 mt, fabricated by Brown Brothers, Edinburgh; the high pressure stack contains: 4" axialswivel for gas lift and injection; electrical swivel for power and communications; 6" toroidalswivel for gas export; 10" toroidal swivel for production test; 6-path utilities swivel forhydraulics; 3" toroidal swivel for air; 12" toroidal swivel for water injection; 10" toroidalswivel for oil export; twin 16" toroidal swivel for production

Riser System Coflexip flexible risers from PLEM to FPSO, configured in'Lazy S' with mid-depth buoyancy modules: 4 x 8" production,1 x 4" gas lift, 1 x 8" water injection, 1 x 6" gas export, 1 x 10"oil export, 2 x 10" control umbilicals, 3 x 12" spare; ; risersallow the ship 30 metres vertical movement and 60 metreslateral excursion.


20 years; 10 years on station; mooring 10 years

Design Criteria 100-year return criteria

Registration Isle of Man

Contact North Sea Production Company, c/o Maersk Contractors,Greenhole Place, Bridge of Don, Aberdeen AB23 8EU, tel:+44 1224 708686, fax: +44 1224 825289.

E45

17 PETROJARL 1 FPSO

Design Tentech 685 turret moored FPSO

FieldLocation

BlenheimBlenheim field, block 16/21b, UK sector, North Sea


UKTalismanProductionPetrojarl 1

DutyStatus of UnitUnit Operator

Production, storage, offloading, accommodationProductionTalisman Energy

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Owner Golar Nor Offshore, Trondheim

Manager Golar Nor Offshore

EngineeringTentech International A/S, Kristiansand

Build History Nippon Kokan KK, Tsu

Conversion EngineeringOther main ContractorsOther Main ContractorsDelivery May 1986

Basic DesignThe Petrojarl 1 is a purpose built turret moored production ship, equipped for operatingflexible or rigid production risers. A crude stabilisation plant is located aft of the turret, withcrude stored onboard for offloading to a shuttle tanker. The ship is equipped with a workoverderrick for wireline/coiled tubing work, and can be upgraded to heavy workover duty. Anumber of modifications have been made to the original newbuilding: in October andNovember 1991 the ship was upgraded by HMV to allow for operations from two wells, aswell as improved NGL recovery and increased water handling. Between the Hudson andBlenheim contracts in the winter of 1994-5 it underwent modifications at Lloyd Werft inBremerhaven. These included: installation of a new process control system; replacement ofthe gas lift compressor with a larger unit; turret altered to accommodate up to eight risers andumbilicals; installation of a Brown Brothers multipath swivel; new riser connections; crude oilcoolers; hydrocyclones for produced water treatment; and replacement of 8 x 600m mooringchains with studless type anchors.

Main Components

MooringTurret mooring with eight anchor legs, each consisting of a mooring winch, mooring line and16 mt Vryhof Stevpris anchor; the ship can weathervane through 360 around the turret, whichuses a roller bearing system for vertical support of the turret and for centralizing the turret inthe turret well; the bearing system is activated and controlled hydraulically; new multipathswivel system fabricated by Brown Brothers and installed 1995

Riser System Can produce through rigid or flexible risers; normally flexiblerisers in 'wave' configuration are used; risers run from the wellsto the turret, through a moonpool in the turret and into acommon manifold where an emergency release coupling isemployed on each riser; 1995 upgraded to take 8 risers andumbilicals; fitted with three Wellstream 6-inch production and2-inch gas lift risers for the Blenheim contract; additional riserfor Bladon was added early 1997.

Other FeaturesDesign LifeDesign CriteriaRegistration Norway

Contact Golar-Nor Offshore A.S., Fjordgata 1, PO Box 482, N-7001Trondheim, Norway, tel: +47 73 88 01 00, fax: +47 73 88 0188..

E47

18 PETROJARL FOINAVEN FPSO

Design Conversion of Russian designed submarine tender

FieldLocation

FoinavenFoinaven field, UK 204/19, 204/24a, 190 km W of Shetlands


UKBP AmocoProductionPetrojarl FoinavenAnadyr


Production, storage, offloading, accommodationProductionBP AmocoGolar-Nor Offshore

Manager Golar-Nor Offshore

EngineeringBuild History 1989, by Wärtsila, Turku yard, Finland

Conversion Engineering Awilco (modifications to increase production capacity)

Other main Contractors Golar-Nor Offshore (design & construction supervision ofFPSO); McDermott Marine Construction (design,procurement, hook-up and commissioning supervision of theFPSO process topsides)

Other Main Contractors Astilleros Espanoles, Astano yard (NC-273), El Ferrol, Spain(vessel); see below for topsides components

Delivery Installation on field November 1996

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Basic DesignThe 'Petrojarl IV' is a converted five-year submarine tender originally built in Finland. It hasundergone major rebuilding. Length was increased to 252 metres by joining the existing bowand stern of the boat to a newbuild 142 metre, 14,592 tonne double skinned middle section.Thirty-two pre-assembled process units totalling 4000 tonnes were added to the ship forFoinaven.

Main Components 4500 mt topsides equipment in 32 pre-assembled packages,designed by McDermott; 1250 mt turret, McDermott Scotland,ArdersierTurret manifold, FMCSwivel & steering gear, Brown Brothers, EdinburghMud mats, Lewis Offshore, StornowaySeparation package, 2000 mt, Kvaerner/PaladonPressure vessels, Motherwell Bridge (sub fromKvaerner/Paladon), ScotlandLP compressors, HowdenHP compressors, Dresser RandGas dehydration package, Kvaerner/PaladonWater treatment package, Serck BakerFiscal metering system, Daniel Industries

MooringTYPE: Turret mooring with 360 weathervaningTURRET: Turret in two sections: 26m diam. x 5m deep upper part, 660 mt, and 12m diam. x17m deep cylindrical lower section, 590 mt; turret contains up to 15 flexible risers plus controlumbilicalsMOORING LINES: Ten x 1140m x 125mm wire mooring lines, buoyed subsea, leading to1200m x 111mm anchor chains and 35t Vryhof anchor, installed by Maersk; line design load1200tSWIVEL: 8m high; high pressure liquid and gas axial and toroidal swivel stack; 5 x liquidflow paths: 1 x 12" production/test, 1 x 12" water injection, 2 x 16" production, 1 x 4" airutility; 1 x 8" electrical swivel

Riser System Currently 8 flexible 8-10" risers; up to 15 x 10-inch flexiblerisers can be accommodated through the turret; risers are heldin a pliant wave form by mid-water buoys; risers and flowlinejumpers manufactured by Coflexip and installed August-October 1995 by 'Flex Installer'


Ground flare, 30m x 12m diameter.FPSO and subsea equipment designed for a production life of25 years; field life estimated 15 years

Design Criteria 100-year storm

Registration Norway

Contact BP Exploration, Farburn Industrial Estate, Dyce, AberdeenAB2 0PB, tel: 01224 832000; Golar-Nor Offshore A.S.,Fjordgata 1, PO Box 482, N-7001 Trondheim, Norway, tel:+47 73 88 01 00, fax: +47 73 88 01 88.

E51

19 RAMFORM BANFF FPSO

Design Newbuild 'Ramform B380' design monohull FPSO

FieldLocation

BanffBanff field, UK blocks 29/2a, 22/27a, North Sea


UKConocoProductionRamform Banff


Production, storage, accommodationProductionConoco (UK) LimitedPetroleum Geo-Services UK Ltd (PGS) (production servicescontract for supply of FPSO, infield flowlines and gas exportline)

Manager Atlantic Power & Gas (APS) (subcontract from PGS forproduction operations)

EngineeringPGS (ship); Maritime Tentech (design & supply of upper turret); Aker Maritime (topsidespackages)

Build History Hyundai Heavy Industries, Mipo, South Korea (hull 9701,lower turret); Brown Brothers, Edinburgh (high pressureswivel stack); Aker McNulty, South Shields (modules, moduleinstallation)

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Conversion Engineering Smit Heavy Lift (module lifts at yard); DSND Oceantech(design, fabrication, procurement, installation of 3 rigid infieldlines, control umbilical, oil and gas export lines, 3 manifoldstructures, a mid-water arch, flexible risers, control systems,etc, plus tie-ins and HUC work)

Other main ContractorsOther Main ContractorsDelivery December 1997

Basic DesignThe Banff FPSO (also referred to as the 'Ramform B380') is based on a wedge-shaped'Ramform' hull design. The vessel is double hull. The turret is located forward of midships,allowing the ship to 'wavevane', or turn with the waves. The exceptional stability reduces therequirement for ballasting, thereby increasing the allowable deck load. The Ramform designhas been described as the only vessel design that can take its entire deadweight on deck,thereby allowing a great deal of flexibility in configuring the process facilities. It is said torequire only half the building time and one-third the amount of steel as comparableconventional FPSOs.

The Ramform Banff FPSO vessel suffered major difficulties in the year 2000, being subject toviolent motion in the seaway attributed to deficiencies in the novel hull design. This producedexcessive roll, outside design specifications. The consequence was a number of systemfailures and difficulties for personnel. The vessel has undergone significant design changes.

Main Components Topsides packages delivered by various suppliers and installedat South Shields

MooringFully weathervaning turret mooring system; 100 mt x 9m high swivel stack, incorporating fivetoroidal flow paths, and axial gas swivel, and an electrical slip ring plus utilities swivel

Riser System Seven flexible risers; provision for a total of 15 risers in turret.

Other FeaturesDesign LifeDesign CriteriaRegistration Isle of Man

Contact Conoco (U.K.) Limited, Rubislaw House, Anderson Drive,Aberdeen AB15 6FZ, tel: 01224 205000, fax: 01224 205470.

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20 SCHIEHALLION FPSO

Design Harland & Wolff designed newbuild FPSO

FieldLocation

SchiehallionSchiehallion field, UK 204/20, 204/25b, 204/25a, 150 km westof ShetlandUK


UKBP AmocoProductionSchiehallion FPSO


Production, storage, offloading, accommodationProductionBP AmocoSchiehallion partners

Manager

EngineeringAltra Consultants (topsides conceptuals); Harland & Wolff (hull); Single Buoy Moorings(turret/mooring); Brown & Root (process topsides); Trafalgar John Brown (subsea); FuelSubsea Offshore (DMac connection system)

Build History Harland & Wolff, Belfast (ship); Barmac (topsides)

Conversion Engineering Subcontract for 1000 metric tonne upper turret assembly,Consafe, Burntisland, for the 1700 mt lower turret assembly,Amec, Tyneside and for the 700 mt fluid swivel stack, IHCHolland (sub-contracts from SBM); Brown & Root AOC(hookup); Coflexip Stena Offshore (flexible risers); SubSeaOffshore (installation of subsea facilities, tow-out andmooring); the 'Subsea and Wells Alliance' consists of BP,

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Trafalgar John Brown, Cooper Cameron, Kvaerner FSSL,FUEL, PRISM and Reading & Bates

Other main ContractorsOther Main ContractorsDelivery First steel cut 5 October 1995; delivery 1998

Basic DesignSome 10,000 mt of process topsides will be added to the ship, which is a newbuild based on aconventional tanker hull.

Main Components 6300 metric tonne process deck, fabricated by Barmac,Ardersier in 37 major sub-assemblies.

MooringTop mounted internal turret (TMIT) allowing 360 weathervaning; turret diameter 14.5m;turret rotates on a bogey rather than segmented bearings, allowing in situ repairs to be made;turret has inverted swivels, which reduces the height of the gantry, saves weight and lowers theheight of the flare stack; 14 x anchor legs consisting of 2800 tonnes of 6.25"/159mm LRSgrade R3S studless chain, supplied by Scana Ramnas, and 2100 tonnes of sheathed spiralstrand mooring wire, 140mm strand with 1700 mt breaking and 146mm strand with 1900 mtbreaking, supplied by Bridon ; legs fixed to 100-tonne suction anchors at 1650m radius; turretcapacity for up to 24 risers

Riser System 15 x dynamic risers containing 130 steel or plastic encasedpipes and 2 umbilicals; some risers pre-installed; total risercapacity 24.


Hull design life 25 years; fatigue life 50 years; field life around17 years

Design Criteria 100-year storn criteria

Registration British

Contact BP Exploration, Farburn Industrial Estate, Dyce, AberdeenAB2 0PB, tel: 01224 832000.

E55

21 TRITON 1 FPSO

Design Newbuild FPSO based on tanker design

FieldLocation

TritonTriton Project (Bittern, Guillemot West and Guillemot NWfields)


UKAmerada HessConstructionTriton 1


Production, storage, offloading, accommodationConstructionAmerada HessAmerada Hess and partners

Manager

EngineeringKvaerner Oil & Gas, Croydon (EPIC); Bluewater (turret mooring system)

Build History Samsung Heavy Industries, South Korea (hull); SembawangEngineering, Singapore (supplementary work on hull);Kvaerner Oil & Gas, Port Clarence (topsides); Lewis Offshore(turret/spider)

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Conversion Engineering Coflexip Stena (riser systems); Stolt Comex Seaway (subseainstallation)

Other main ContractorsOther Main ContractorsDelivery Drilling and subsea work under management of Shell

Basic DesignThe tanker was a double hulled design being built by Samsung for Tanker Pacific ofSingapore, when the contract was taken over by Kvaerner Oil & Gas Ltd (KOGL) for use as anFPSO for Amerada Hess. The original design was upgraded by Amerada/KOGL and the shipwas sent to Sembawang under its own propulsion to undergo the modifications programme.This included primarily: additional steel work to give added strength and service life,installation of topsides support stools, stern discharge grillage, cooling water caissons, firepumps, HVAC system and major deck cable trays and cabling work. The turret casing, withtop and bottom bearing housings 6m diameter and 25m apart, was also installed. The FPSOwas then moved to the KOGL yard on Teesside for installation of the turret and completion ofthe topsides.

Main Components Two process and two utility skids on the main deck; 7500 mtprocess and utilities equipment, fabricated and installed byKvaerner, Port Clarence; turret/spider 1100 mt, fabricated byLewis Offshore.

MooringTURRET: Bluewater designed internal bow turret, 4.4m diameter; 360° weathervaningMOORING: 9-leg turret mooring consisting of 3 x 3 groups of chain/wire, 1250m eachSWIVEL: 8 toroidal swivels, 1 electrical slipring

Riser System 9 flexible risers; 2 umbilical risers


20 years; designed to remain on station for at least 15 years.

Design CriteriaRegistrationContact Amerada Hess Ltd, 33 Grosvenor Place, London SW1X 7HY,

tel: 0171 823 2626, fax: 0171 887 2199.

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22 UISGE GORM FPSO

Design FPSO based on converted product tanker

FieldLocation

FifeFife field, UK blocks 31/26a, 31/27a, 39/1, 39/2, Central NorthSea, 337 km ESE of Aberdeen, south of Ekofisk


UKAmerada HessProductionUisge GormDirch Maersk


Production, storage, offloading, accommodationProductionAmerada Hess Ltd.Bluewater Group (4 year contract to Amerada Hess includingprovision of chartered shuttle tankers)

Manager Bluewater Group

EngineeringBuild History 1983, by Odense Staalskibsvaerft A/S, Lindo, Denmark

Conversion Engineering Rockwater (EPIC for flowlines, risers and anchor systems);Brown & Root (engineering sub-contractor to Rockwater);ABB Global Engineering (interface engineering)

Other main Contractors Bluewater Group

Other Main Contractors Astilleros Espanoles, Cadiz (vessel conversion); LewisOffshore (turret, turntable, spider); Natco (process systems andglycol plant); McNulty Offshore Services (assembly andoutfitting)

Delivery March 1995 delivery at Tyneside from shipyard, followed by12 weeks outfitting, including 20 lifts up to 580 metric tonneusing 'Taklift 6'

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Basic DesignThe FPSO was converted from a conventional motor tanker 'Dirch Maersk' purchased from APMoeller; main modifications included: turret mooring; multiple production, gas, waterinjection and gas lift risers plus control umbilicals; flare; dual fuel power generation andprocessing equipment located in large modules, located on the main deck supports; sternoffloading system; control and monitoring system; helideck; and upgraded safety features.

Main Components

MooringThe Bluewater designed 4.5m diameter internal turret is located close to the bow and consistsof the following main components: nine anchor piles to anchor the nine individual mooringlegs to the seabed; nine composite (100m Ramnas 5.25" chain/1100m Bridon 5.25" spiralstrand cable/420m Ramnas 5.25" chain to surface) mooring legs grouped in 3 x 3 mooring legsequally spaced at 120 apart; an internal turret with spider to connect the nine mooring legs bymeans of automatic chain stoppers (the turret also carries the hawse pipes through which therisers can be pulled in); a bearing arrangement which connects the turret including the 200 mt

spider with the vessel hull, enabling the tanker to weathervane 360° ; riser pipes which conductwell fluids, injection water, gas and umbilicals through the turret to a platform above the mainbearing; a swivel stack for the passage of product, test product, gas water and air, at pressuresto 5000 psi; the swivel has four flow paths for well bore fluids, max. diameter 10 inches, max.operating pressure 4200 psi; and a slip ring for powering the electrical systems in the turret.Contracts include: structural castings, River Don; swivel castings, Weir; anchors & chainssupplied under subcontract to Rockwater; mooring wire/chain installed by Smit Maritime('Taklift 8')/Ugland ('Maxita').

Riser System Originally nine risers in turret: 4 x production, 4 x gas lift, 1 xwater injection, plus space for another 8 risers; additional risersadded for Fife, Fergus and Flora tie-ins; flowlines, risers andanchor systems are leased from Rockwater by the BluewaterGroup.


Segregated ballast, UMS and IGS15 years

Design Criteria 50 year environmental loads in North Sea

Registration Netherlands Antilles

Contact Bluewater Offshore Production Systems Ltd., Stationstraat202, 2910 Essen, Belgium, tel: +32 36700260, fax: +3236700269.

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23 VARG FPSO

Design Tentech 700 SP design turret moored FPSO

FieldLocation

VargNorway 15/12b, 35 km S of Sleipner, ESE of Maureen


NorwaySagaProductionVarg FPSO


Production, storage, offloading, accommodationProductionSaga Petroleum A/SSaga Petroleum A/S (35%); Statoil (35%); Norwegian statedirect financial interest (30%)

Manager

EngineeringMaritime Tentech (hull); FELS (turret/fluid tranfer system)

Build History Keppel FELS (Far East Levingston Shipyard), Singapore(ship/turret/topsides integration); ABB Lummus Global(process topsides, subcontract from FELS)

Conversion Engineering Coflexip Stena Offshore (subsea); Aker MaritimeContractors/Maersk Supply Service (tow-out and hookup);Stolt Comex Seaway (transport and installation of mooringsystem)

Other main ContractorsOther Main ContractorsDelivery 6 September 1998

Basic DesignMain Components Operating topside weight 5200 metric tonne

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MooringMOORING SYSTEMTurret mooring system; 10 x mooring lines; 10 x 72-inch diameter pile anchors.TURRET TRANSFER SYSTEMMetool designed and built turret transfer system; drag chain system allowing 270weathervaning; system manages all lines required for production, water injection, gasinjection, well testing, wells service, as well as electro-hydraulic supply subsea, fire water andair supply; also included are emergency power and control jumper cables and fire water hosesbetween the vessel and the turret; designed to operated without power in 100-year stormconditions.

Riser System Ten riser guide tubes; risers are supported by a 180 metrictonne steel buoy positioned 40 metres above the seabed, andanchored to the seabed by a steel template; system supplied byStordbase


Fifteen years without docking; extendable to 25 years withminor modifications

Design Criteria 100-year return storm criteria

RegistrationContact Saga Petroleum ASA, Kjørboveien 16, P.O.Box 490, N-1301

Sandvika, Norway, tel: +47 67 12 66 00, fax: +47 67 12 66 66.

E61

24 VINGA FSO

Location UK Fulmar Field 1993 - 1997Turret Type Submerged Turret Loading (STL)Turret Supplier Advanced Production and Loading AS (APL)FTS type Compact SwivelFTS Supplier Framo AS


ANNEX F

F1

ANNEX F

Information on World-wide FPSO Installations

KeyWorld-wide FPSOs listed in alphabetical orderIncludes UK and other North Sea installations

See Annex A for summary information on UK FPSOs and FSUsSee Annex E for more detail on individual UK and North Sea FPSOs and FSUs

ANNEX F

F3

Annex F World Wide FPSOs

Name Country Field Status of UnitAgbani Nigeria Abana ProductionAl Zaafarana Egypt Zaafarana Production

Anasuria UK Teal, Teal South, Guillemot A Production

Anoa Natuna Indonesia Anoa ProductionAoka Mizu Japan None Construction

Armada Perkasa Malaysia PM-3 ProductionÅsgard A Norway Åsgard Construction

BA VI Vietnam Rong ProductionBalder FPU Norway Balder Construction

Berge Hugin UK Pierce ProductionBleo Holm UK Ross Production

Bo Hai Ming Zhu China Suizhong SZ-36-1 ProductionBo Hai You Yi Hao China Bozhong BZ-28-1 Production

Bonga TBN Nigeria Bonga ProbableBuffalo FPSO Australia Buffalo Construction

Captain FPSO UK Captain ProductionChallis Venture Australia Challis/Cassini Production

Chang Qing Hao China Bozhong BZ-34-2/4 Production

Chi Linh China Bach Ho ProductionConkouoati Congo Yombo N/K

Cossack Pioneer Australia Wanaea ProductionEa FPSO Nigeria Ea Probable

Espoir FPSO Ivory Coast Espoir ProbableF601 FPSO Hull Japan None Available

FPSO Firenze Italy Aquila ProductionFPSO II Brazil Marlim South Production

FPSO VI Brazil Espadarte ConstructionGirassol FPSO Angola Girassol Construction

Glas Dowr UK Durward/Dauntless ProductionGriffin Venture Australia Griffin Production

Gryphon A UK Gryphon ProductionHitra Malaysia MASA Construction

Isis FPSO Tunisia Isis ProbableJabiru Venture Australia Jabiru Production

Jamestown West Africa None Available

Jotun FPSO Norway Jotun ConstructionKakap Natuna Indonesia Kakap KH Production

Khrak Iran Soroush ProbableKnock Taggart Nigeria Akam, Adanga, et al. Production

Maersk Curlew UK Curlew ProductionModec Venture I Australia Elang/Kakatua Production

Nan Hai Fa Xian China Huizhou HZ-21-1 ProductionNan Hai Kai Tuo China Xijiang 24-3 Production

Nan Hai Sheng Li China Liuhua 11-1 ProductionNan Hai Xi Wang China Weizhou 10-3 Production

Navion Munin China Lufeng 22-1 ProductionNew Orleans Tunisia Didon Construction

ANNEX F

F4

Name Country Field Status of UnitN'Kossa NKP Congo N'Kossa ProductionNorne Production Vessel Norway Norne Production

North Sea Producer UK MacCulloch Production

Northern Endeavour Australia Laminaria/Corallina ConstructionOcean Producer Angola Kiabo Production

P-31 Brazil Albacora ProductionP-33 Brazil Marlim Production

P-34 Brazil Barracuda ProductionP-35 Brazil Marlim Construction

P-37 Brazil Marlim ConstructionPetrojarl 1 UK Blenheim Production

Petrojarl Foinaven UK Foinaven ProductionPetroleo Nautipa Angola Kiame Production

Petronas Carigali Malaysis MASA ProductionProstor II Angola Kuito Construction

Ramform Banff UK Banff ProductionRang Dong I Vietnam Rang Dong Production

Ruby Princess Vietnam Ruby Production

San Jacinto Indonesia Sembilang ProductionSchiehallion FPSO UK Schiehallion Production

Seillean Brazil Roncador ProductionTantawan Explorer Thailand Tantawan Production

Terra Nova FPSO Canada Terra Nova ConstructionTriton 1 UK Triton Construction

Uisge Gorm UK Fife ProductionUkpokiti FPSO Nigeria Ukpokiti Production

Varg FPSO Norway Varg ProductionWhakaaropai New Zealand Maui B Production

Zafiro Producer Equatorial Guinea Zafiro Production

FPSO Annex F Worldwide Installations v2.doc 2 2-Aug-01 485

ANNEX F

F5

Figure F1Distribution of the world FPSO fleet, March 2001

Courtesy Bluewater website

ANNEX G

G1

ANNEX G

Information on specific FPSO turret and FTS systemmanufacturers

ANNEX G

G3

Annex G Turret and Swivel Suppliers

APL Advanced Production and LoadingASPO Box 53N-4801 ArendalNorwayTel: +47 37 00 25 00Fax: +47 37 02 41 28E-mail: [email protected]://www.apl.noNote: Turret supplier

AstanoAsilleros EspaniolesOchandiano 14-1628023 El PlantioMadridSpainTel +34 91 387 81 00Fax +34 91 387 81 14

Bluewater Engineering BVMarsstraat 33PO Box 31022130 KC HoofddorpThe NetherlandsTel +31 23 5682800Fax +31 23 5652053http://www.bluewater-offshore.com/Note: Swivel and Turret supplier

Brown Brothers and Co LtdRolls Royce - MarineTaxiwayHillend Industrial ParkDalgety BayFifeKY11 9JTTel:+44 (0)1383 823188Fax +44 (0)1383 824038Note: Swivel supplier

Framo Engineering ASPO Box 174N-5049 SandsliNorwayTel: +47 55 92 88 00Fax: +47 55 92 89 10E-mail: [email protected]

http://www.framoeng.no

Note: Swivel supplierSWIVEL STACKS FOR FSU/FPSO: STL/STP/ SAL/ Ext. & Int. TurretNorsk Hydro, Njord NS (FSU-STL); Statoil,Lufeng CHINA (FPSO-STP)Enterprise Oil, Pierce UK (FPSO-STP);Sofec/Petronas, Masa; Malaysia (FPSO-Ext.T.); KOG/Statoil, Siri DS (FSO-SAL);Statoil, Åsgard C (FSU-STL); FMC/Sofec,Terra Nova, (FPSO-Int. T.); Conoco, Banff(FSO-SAL); A. Hess, South Arne (FSO-SAL)

FELS LtdKeppel FELS Energy & Infrastructure Ltd31 Shipyard Road, Singapore 628130Tel: (65)2676700Fax:(65)2617719, (65)2651927http://www.keppelfels.com.sg/index.htm

Note: Turret supplier

IMODCO LtdIMODCO Inc.27001 Agoura Road, Suite 350Calabasas Hills, CA 91301-5359 USA+1 (818)880-0300 ext. 258Fax: +1 (818)880-0333http://www.imodco.comNote: Swivel and Turret supplierPart of IHC/Calland Group and sistercompany to Single Buoy Moorings

Maritime Tentech ASServicebox 4084604 KristiansandNorwayTel: +47 38 05 75 00Fax: +47 38 05 75 05E-mail: [email protected]: [email protected]://www.akermaritime.noNote: Swivel and Turret supplier

ANNEX G

G4

METOOLMetool Products Ltd

Lilac Grove, Beeston,Nottingham NG9 1PG, England.Tel: +44 (0) 115 922 5931Fax: +44 (0) 115 922 4578E-mail: [email protected]

Nortrans Offshore LtdClarendon House, 2 Church StreetPO Box HM 1022Hamilton DXBermudac/o 1 International Business Park#10-01 The SynergySingapore 609917Tel: +65 665 6200Fax: +65 567 5110E-mail: [email protected]://www.nortrans.com

Note: Swivel and Turret supplierCamar Nusantara Turret Mooring; AlZaafarana Turret Mooring ; Ruby PrincessFPSO Turret Mooring;SWIVALS: Single Pass Swivel, MultiplePath Crude Oil and Water Injection Swivel;Single Path Toroidal Swivel for CALM Buoy

SBM Single Buoy Moorings IncHead Office5, Route de Fribourg- P.O.Box 152CH-1723- 1723 Marly -SwitzerlandTel (41) 26 437 1161Fax (41) 26 436 3313http://www.singlebuoy.com

Engineering Office24, Ave de Fontvieille- P.O. Box 199MC 98007 Monaco Cedex -Principality of MonacoTel (377) 92 05 15 00Fax (377) 92 05 32 22

Note: Swivel and Turret supplierKnown as SBM, SBM Offshore Systemsproduces the turrets systemsPart of IHC/Calland Group and sistercompany to IMODCO

SOFEC Inc6677 North GessnerHouston TX 77040Tel 713 510 6600Fax 713 510 6601http://www.Sofec.comNote: Swivel and Turret supplierNote: Part of FMC

H1

ANNEX H

Glossary of Terms

H3

Single-Point-Mooring Glossary

ALC Articulated Loading ColumnALP Articulated Loading Platform

ARTC Articulated Loading ColumnBMIT Bottom Mounted Internal

Turret

BTM Buoyant Turret MooredCALM SY Catenary Anchor Leg

Mooring Soft Yolk

CALM Catenary Anchor LegMooring

CALRAM Catenary Anchor Leg Rigid

ArmCBM Catenary Buoy MooringCONTROL Control Buoy

ECT External Cantilevered TurretEDT External Disconnectable

Turret

ELSBM Exposed Location SingleBuoy Mooring

FDPSO Floating Drilling Production

Storage and Offloading vesselFLP Floating Loading PlatformFPSO Floating Production Storage

and Offloading vesselFSO Floating Storage and

Offloading vessel

FSU Floating Storage UnitFTSPM Fixed Tower Single Point

Mooring

IAT Internal Active TurretIDT Internal Disconnectable TurretIPT Internal Passive Turret

JSY Jacket Soft YokeOLT Offshore Loading TowerPLEM Pipeline End Manifold

RMD Rigid Mooring BuoyRRT Rigid Riser TowerRTM Riser Turret Moored

SAL Single Anchor LoadingSALM Single Anchor Leg MooringSALRAM Single Anchor Leg Rigid Arm

MooringSALS Single Anchor Leg StorageSAP Single Anchor Production

SBM Single Buoy MooringSBS Single Buoy StorageSLB Submerged Loading Buoy

SPAR Floating Cylinder FacilitySPM Single Point Mooring

(General term)

SPM Single Point MooringSPOLS Single Point Offshore Loading

System

SPT Single Point TurretSTL Submerged Turret Loading

STP Submerged Turret ProductionTCMS Tripod Catenery Mooring and

Loading System

TOWER HM Tower with hawser mooringTOWER STW Submerged Tower with

wishbone

TOWER SW Tower with submergedwishbone

TOWER Loading Tower

TRMS Turret Riser Mooring SystemUKOLS Ugland Kongsberg Offshore

Loading System

VALM Vertical Anchor Leg Mooring

CALM Catenary Anchor Leg Mooring

CALM SY Catenary Anchor Leg Mooring SoftYolk

H4

CALRAM Catenary Anchor Leg Rigid Arm(CALM Buoy with Rigid Arm)

ECT External Cantilevered Turret

ETD External Cantilevered Turret

RTM Riser Turret Moored

H5

SAL Single Anchor Loading

SALM Single Anchor Leg Mooring

TOWER Loading TowerTOWER HM Tower with hawser mooring

TOWER SW Tower with submerged wishboneTOWER STW Submerged Tower with wishbone

Printed and published by the Health and Safety ExecutiveC0.35 3/02

OTO 2001/073

£60.00 9 780717 622955

ISBN 0-7176-2295-9

fpso oto01073c

Documents

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north sea fpso

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