FPSO-Bow Mounted vs. Aft Mounted

ANNEX E

ANNEX E Information on specific UK and North Sea FPSO and FSU Installations

CONTENTS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Ailsa Craig FSO Alba FSO Anasuria FPSO asgard A FPSO Balder FPU Berge Hugin FPSO Bleo Holm FPSO Captain FPSO Douglas FSO Glas Dowr FPSO Gryphon A FPSO Jotun FPSO Maersk Curlew FPSO Nordic Apollo FSO Norne FPSO North Sea Producer FPSO Petrojarl 1 FPSO Petrojarl Foinaven FPSO Ramform Banff FPSO Schiehallion FPSO Triton 1 FPSO Uisge Gorm FPSO Varg FPSO Vinga FSO

3 4 5 11 15 17 21 23 25 27 29 31 33 35 37 41 45 47 51 53 55 57 59 61

Key N/K Not Known N/A Not Applicable Blank Not Available See Annex A for summary on individual UK FPSOs and FSUs See Annex E for more detail World-wide FPSOs including other North Sea

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1

AILSA CRAIG FSO

Installed in North Sea 1989 Retired 1996 Operator Sovereign Emerald Field, UK North Sea until 1996 - Now Ima Field Nigeria 150m water depth No Turret Tripod Wishbone New Build

Detailed information not available

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2

ALBA FSO

Installed in field 1993 Operator Chevron UK Alba Field, UK North Sea Internal Turret IPT Turret Supplier SBM Permanent Fluid Transfer system (FTS): Multipath Swivel FTS supplier: SBM Roller bearing Main roller bearing is located at the bottom of the turret above chaintable (See cross section drawing). 12 wells New Build Detailed information not available

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Design Field Location Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator Owner Manager

ANASURIA FPSO

Newbuild monohull FPSO Teal, Teal South, Guillemot A UK 21/25 (Teal, Teal South); 21/25, 21/30 (Guillemot A); Central North Sea, 305 km E of Aberdeen UK Shell Production Anasuria Production, storage, offloading, accommodation Production Shell UK Exploration & Production Ltd. Shell Expro

Engineering SBM Inc., Monaco (main contractor); Stork Protech, Holland (topsides engineering subcontractor); Mitsubishi Heavy Industries (barge subcontractor) Mitsubishi Heavy Industries, Nagasaki, Japan (barge Build History subcontractor); AMEC Process & Energy (subcontractor for turret and process system; integration of hull, turret and topsides) FPSO and mooring installation subcontract, Aker/Heerema; Conversion Engineering installation of tie-backs, flexible risers, Fulmar pipeline tie-in, McDermott; subsea facilities, Cooper Oil Tools, Leeds Other main Contractors Other Main Contractors 24 August 1996 sailaway Delivery

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Basic Design BASIC CONCEPT The FPSO comprises a new build turret moored monohull vessel capable of continuous operation in the CNS. A minimum service life of twenty years is required and it is envisaged that the FPSO will be demobilised after ten years service for major survey, maintenance and repair. The FPSO exports oil to the existing Shell/Esso fleet of shuttle tankers or to third party tankers. Tankers are moored astern to the FPSO during loading. The FPSO is connected to subsea production manifolds using flexible risers, flowlines and control umbilicals. All FPSO systems, including the subsea systems, are monitored and controlled 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 for export by shuttle tanker; export of associated gases consistent with the Fulmar Gas Line requirements; treatment of produced water prior to disposal overboard; provision of facilities for water injection; provision of facilities for water injection; provision of utility systems for FPSO shipboard, topsides and subsea operations; space and weight provision for a future identical gas compression train, production separator, oil import and gas lift are included. BARGE DESIGN The barge is designed to receive, store and offload crude oil produced from subsea wells and treated in the topside facilities. Minimum provisions to allow future import of stabilized crude are provided. It is capable of storing 850,000 bbls of crude, based on 98% of full capacity excluding the slop tanks. It is provided with a helicopter deck, accommodation space (which functions as the TSR -- Temporary Safe Refuge) and a machinery space, all located at the stern of the barge. The barge has a double hull consisting of side ballas tanks over the full length of the cargo tanks, and a single bottom. The main hull is divided by bulkheads into the following compartments: fore peak water ballast; no. 1 side water ballast tank; cargo tanks and side water ballast 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 pair of slop tanks. A centre line swash type bulkhead is provided in the cargo oil tanks. The centre tanks are allocated to crude oil storage, while the wing tanks are used for seawater ballast exclusively. The produced oil from the topsides is received with a decanting line to where final crude dehydration takes place. In this process the remaining water settles by gravity prior to being displaced 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 tank strength. During normal operation ballast tanks can be either full or empty to allow ease of operation. The barge is operated on an even keel condition in combination with ballast operation with a slight trim by the stern during stripping operations. The cargo tanks are equipped with individual submerged cargo offloading pumps. Crude oil is exported via a fiscal metering system to a tandem moored shuttle tanker. The cargo piping system is designed to enable simultaneous reception of crude oil from the topside facilities and offloading 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 the continuity of crude oil production and storage. All cargo and ballast tank equipment and associated systems are remotely controlled and monitored from the ICC (Installation Control Centre) 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, Kinderdijk Processing topsides modules (22), 3500 mt, Amec Process & Energy, Wallsend Quarters/helideck, Mitsubishi, Nagasaki Main control room, 500 mt, Ferguson Seacabs, Inverurie Switchgear module, 500 mt, Ferguson Seacabs, Inverurie

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Mooring The 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 a single roller bearing located at the optimum vertical position for weathervaning. It consists of a chaintable structure anchored to seabed anchor piles via twelve catenary mooring anchor lines, able to limit excursions to 24 metres in extreme conditions. The anchor system consists of, from top to seabed: 110m chain attached to base of turret; clump weight consisting of 150m x 6" double length chain; 30m x 6" chain; 700m x 5.5" Bridon sheathed spiral 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 located approximately 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 into the forward part of the FPSO vessel's hull. A turret cylinder, housed in a 12.6m diameter well and extending upwards until some two metres above the vessel's main deck, is mounted to the earth-fixed side of the main bearing. The turret cylinder houses the riser 'I-tubes' and supports the 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 radial bearing assembly is used at tanker main deck level to absorb the radial loads caused by the accelerations of the upper turret structural mass and to act as a radial bearing during a possible offshore change-out of the main bearing. The entire assembly including manifold platform and swivel extends some 30 metres above the main deck. When the vessel moves off station, due to the effects of wind, wave and current, certain anchor lines are lifted. This generates a restoring force which returns the system to the equilibrium position, thus limiting the vessel's excursion. The turret mooring system is designed to securely moor the FPSO tanker in all sea states up to and including the survival sea state while allowing transfer of fluid products to and from the barge. Fluid transfer is achieved by flexible risers which are routed through the turret mooring and interface, with rigid piping at manifold deck level. The product is then passed through toroidal swivels to the barge main deck and the process facilities. The swivel stack comprises, from bottom to top: space for future swivel (2 x 8"); space for oil production swivel (2 x 8"); oil production 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). The turret's manifold area is protected from possible wave action (green water) by a raised bulwark extension of the barge's bow. A tubular steel overhead framework is positioned directly over the turret to provide access in order 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 swivels and perform other maintenance functions. A hydraulic power unit, located on the FPSO deck, provides power via the swivel to activate the several types of valves in the product lines. The turret can accommodate up to 14 risers of various Riser System diameters; initially 6 risers and 2 umbilicals were installed. The flexible risers are supplied by Wellstream. Pigging facilities for production lines Other Features 20 years Design Life

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Design Criteria Registration Contact

Survival waves Hs 12.8m, Hmax 23.8m; wind (1 min. mean) 37 m/s; surface current 1.06 m/s UK Shell UK Exploration and Production, 1 Altens Farm Road, Aberdeen. AB12 3FY, tel: 01224 882000; Single Buoy Moorings Inc., Engineering Office, 24 Avenue de Fontvieille, PO Box 199, MC 98007 Monaco Cedex, tel: (377) 92 05 15 00, 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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Design Field Location Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator Owner

ASGARD A FPSO

Tentech 900 S design turret moored FPSO Åsgard Åsgard field, Norway 6407/2, 6506/11, 6506/12, 6507/11, Haltenbanken area, off mid-Norway Norway Statoil Construction Åsgard A Production, storage, offloading, accommodation Construction Statoil Statoil (60/5%); Agip (7.9%); Total (7.65%); Neste Oy (7%); Saga (7%); Mobil (6.15%); Norsk Hydro (2.6%); Deminex (1.2%)

Manager Engineering Maritime Tentech, Kristiansand (hull); Aker Engineering/ABB Offshore Technology, Oslo and Asker (topsides engineering); SBM (swivel) Hitachi Zosen, Ariake yard, Japan (hull and turret base, Build History subconctract from Maritime Tentech); Aker Stord (main topsides contractor) Aker Stord (assembly and hookup); Aker Elektro (electrical Conversion Engineering systems); Aker Marine/Maersk (JV) (installation on field); Coflexip Stena Offshore (flowlines, risers); Stolt Comex Seaway (subsea installation) Other main Contractors Other Main Contractors November 1998 from Stord; February 1999 (installation on Delivery field)

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Basic Design The FPSO will be a newbuild Tentech 900S design, and will be the world's largest floating production ship (about 16 metres longer than Norne). The bid package consisted of three main contracts: hull construction, topsides construction and assembling topsides to hull. Topsides will consist of nine main packages. Approx. 15,000 mt topsides load, including 12,600 dry weight Main Components of modules installed in lifts of up to 1200 metric tonne Separation package: 3 x separation modules, Kvaerner Process systems. Compression modules: 4 x compression modules, 4400 mt, Belleli Offshore Power/compressor modules: Dresser Rand Compact heat exchangers: Heatric Quarters/helideck: Emtunga Flare boom: 80m flare boom over stern, 210 mt, Aker Verdal Steel: 5000 mt structural steel, Norsk Stål Mooring TURRET: 26m diameter, 24 slots; upper turret 1200 mt, Aker Stord SBM SWIVEL STACK: 13.1m high, consisting of (from bottom to top) four toroidal swivels for 12 " product, gas export and tes, two utility swivels with total 14 flow paths for heating medium, mehtanol, air, hydraulics, etc., a 550 kVA electrical swivel, a methanol injection swivel and a gas injection swivel MOORING: Anchor spread consists of 12 chain & wire anchors Coflexip flexible risers: 10 x 9-inch x 700m production (390 Riser System bar, 130 C; 4 x 9-inch x 650m gas injection (500 bar, 90 C); 2 x 11.62-inch x 600m gas export (170 bar, 90 C); 1 x 11.62-inch x 600m oil export (100 bar, 130 C); riser and umbilical lockdown system, Nymo; installation Rockwater/Saipem (JV) Flare gas recirculating system Other Features Designed for 20 years field life with minimal requirement for Design Life drydocking Design Criteria Norwegian Registration Den norske stats oljeselskap a.s., Grenseveien 21, Postboks Contact 300, 4001 Stavanger, Norway, tel: +47 51 80 80 80, fax: +47 51 80 44 70.

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Asgard A Swivel Stack

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5

BALDER FPU

Balder FPU Courtesy ESSO

Design Field Location Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator Owner Manager Engineering Smedvig Build History

Smedvig designed purpose built turret moored FPSO Balder Balder field, Norway blocks 25/10, 25/11 Norway Esso Construction Balder FPU SPU 380 Production, storage, offloading, accommodation Construction Esso Norge A/S Ship built on spec by Smedvig A/S; purchased from Smedvig by Esso Smedvig/Esso joint team will manage the ship after purchase by Esso

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

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Conversion Engineering

at Scott Lithgow yard, Port Glasgow. ABB Group (subsea facilities); Coflexip Stena Offshore (subsea installation); Smit Maritime Contractors (marine installation)

Other main Contractors Other Main Contractors Delivery Basic Design The FPSO is purpose built to Smedvig's own design and specifications. It is turret moored and designed to maintain continuous oil production under harsh weather conditions. It has double sides and a double bottom, and can handle up to 20 flexible risers. The vessel is also designed for maximum flexibility with regard to future expansion of processing facilities. Process and utility equipment is constructed as complete Main Components modules, and includes the following units: oil separation and produced water; compression and gas reinjection; power generation; water injection; oil metering; chemical injection; HVAC; flare. The 700 mt module containing first and second stage separators, electrostatic crude oil dehydrator and glycol unit was built by KPS [Kvaerner] at Port Klang, Malaysia. Mooring 10-point turret mooring system: each line containing 1220m x 92mm NV K4 chain and a 17tonne Stevpris anchor, controlled by 5 double windlasses; turret diameter 17.2m, equipped with a bearing system with rollers, pinion drive rotation control and a drag chain transfer system; turret transfer system designed and built by Metool Tools; turret has a central moonpool for inspection and/or additional riser tubes and can rotate 270 Capacity for 26 risers; previous configuration had 15 risers in Riser System one metre diameter tubes. Advanced waste disposal and sewage processing systems Other Features 20 years Design Life General Northern North Sea weather conditions Design Criteria Norwegian Registration Esso Norge A/S Exploration & Production, Grenseveien 6, PO Contact Box 60, 4033 Forus, Norway, tel: +47 (04) 606060, fax: +47 (04) 606124.

Balder FPU Turret

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BERGE HUGIN FPSO

Multipurpose shuttle tanker/FPSO used as FPSO Pierce North Sea, Pierce field, UK 23/27 and 23/22a UK Enterprise Production Berge Hugin Production, storage, offloading, accommodation Production Enterprise Oil Navion/Bergesen D.Y. AS (50/50 ship owners); APS (50/50 Aker Maritime/Statoil) owns and leases the process facilities. Pierce Production Company (PPC), consisting of: Statoil, Advanced Production Systems (APS) and Berge Hugin partnership (50/50 Navion and Bergesen)

Engineering Advanced Production Systems (APS) [Aker/Statoil] (production facilities); project management and systems engineering carried out by Aker Engineering, Oslo Samsung Heavy Industries, Koje (ship); Aker McNulty Build History (topside facilities) Smit Heavy Lift (modules installation); Coflexip (flexible Conversion Engineering flowlines and risers); Cameron (wellheads and xmas trees); Rockwater (subsea installation) Other main Contractors Other Main Contractors December 1996 Delivery

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Basic Design The Berge Hugin is the first of a series of multipurpose shuttle tankers (MST) prepared for FPSO operation. The ship features a load-bearing deck to accommodate rapid installation of production topsides; the facilities are contained in standardized modules which can easily be transferred to another similar ship if required. Topside facilities of up to 3500 mt in 100-200 mt packages can be accommodated on the aft part of the deck. The MST has a double-skinned hull and incorporates the submerged turret loading and production system developed by Statoil, APL and Framo. As an alternative to FPSO use, the ship can be employed as a shuttle tanker. In this mode it can stern load while moored to a buoy, storage unit or production system, or it can load on DP without anchoring. Alternatively, it can load via an STL (submerged turret loading) buoy as developed by Statoil and partners and employed on several fields. It can also be used as an FSO with no further modifications. The 'Berge Hugin' was initially taken to Blohm + Voss in Hamburg for about six weeks preparatory work, then to Aker McNulty on Tyneside for outfitting of process topsides. Topsides consisting of eleven modules, weight about 5000 Main Components tonnes; four of the modules were fabricated by Aker McNulty, which installed all eleven; other modules were supplied by Proser, Baker Hughes Process Systems, Enerflex, KCC Process Equipment and IKM. Mooring The MST uses a DP system for positioning; mooring/loading in a production situation uses the APS developed STL/STP system. The main component in submerged turret loading (STL) is a buoy which floats below sea level and is pulled into the bottom of a shuttle tanker before loading 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 and waves 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 STL ships to be converted easily for oil output. Multipurpose shuttle tankers use this solution in production mode. The swivel can transfer a multiphase wellstream containing oil, water and gas via a flexible riser into the weathervaning vessel. STP is suitable for developments based on subsea production, and can be adapted for small or medium-sized fields, such as satellite reservoirs. On small fields, several risers from seabed wells can be tied to the swivel via the submerged buoy. It is also deployable in deep water. In the case of the Berge Hugin the ship is moored using suction anchors. Capacity for 10 risers or more; three 10 inch and one 8 inch Riser System flowline riser installed by Rockwater Other Features Design Life Design Criteria Norwegian Registration Den norske stats oljeselskap a.s., Shipping & Maritime Contact Technology, 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 System Courtesy APL

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BLEO HOLM FPSO

Bluewater Ross Ross field, UK 13/28a, 13/29a, UK North Sea UK Talisman Production Bleo Holm Production, storage, offloading, accommodation Production Talisman Energy (UK) Ltd. Owned, managed and operated by Bluewater, on lease to Talisman

Manager Engineering Bluewater UK (main contract); Fluor Daniel (process equipment engineering, procurement, construction, outfitting, hookup & commissioning) Hitachi, Japan (base tanker hull newbuild); Lewis Offshore Build History (turret); UIE (topsides); Consafe UK (quarters) Smit Marine Contractors (mooring installation, tow-out and Conversion Engineering installation of FPSO); Stolt Comex Seaway (pipeline tie-in) Other main Contractors Other Main Contractors September 1997 to UIE for completion; installation at field Delivery February 1999

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Basic Design The FPSO is based on a standard double-hull tanker newbuild with the moonpool already in place. Marine completion work consists mainly of: fabrication of turret deck housing, crane pedestals and module supports; installation of turret; fabrication of the accommodation and helideck; installation of ship piping systems; installation of flare tower; installation of offloading equipment for crude transfer to shuttle tankers. The ship was transferred to UIE Clydebank for installation of topsides and commissioning. There is enough free deck space left to enable tie-in of possible future satellite developments. 6000 metric tonne topsides installed on deck, incl. 1200 Main Components quarters module. Mooring DESIGN: Bluewater designed internal bow turret mooring, free weathervaning MOORING LINES: 3 x 3 lines SWIVEL: Bluewater design swivel; fluid paths for gas, water, oil and test, up to 5000 psi operating pressure Flexible risers and umbilical risers; maximum turret capacity Riser System 18 slots. 20 years Other Features Design Life 50 years survival conditions; design wave height (Hs) 12.9m; Design Criteria wave height (Hmax) 23.7m; max. hourly mean wind speed 35.4 m/s Registration Bluewater Offshore Production Systems Ltd., Stationstraat Contact 202, 2910 Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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CAPTAIN FPSO

Tentech 700 T (Maritime Group A.S.) turret moored FPSO Captain Captain field, UK block 13/22a, Moray Firth, 135 km NE of Aberdeen at 58° 18'19.8"N, 1° 44'34.8"W UK Texaco Production Captain FPSO Production, storage, offloading, accommodation Production Texaco North Sea UK Ltd. Texaco North Sea UK Ltd. Amec Process & Energy

Engineering Astano (vessel); Maritime Seanor (turret); ABB Lummus Global (process) Astilleros del Noroeste SA (Astano), El Ferrol, Spain Build History Conversion Engineering

Other main Contractors Other Main Contractors Delivery

Natco (process separation subcontract from ABB Lummus Global); SHEFS, Grimsby (process modules subcontract from Natco); Coflexip Stena Offshore (subsea installation)

Launch 2 July 1996; sailaway 16 November 1996

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Basic Design The FPSO is a newbuild based on a conventional tanker hull. In addition to the normal processing and utilities, the ship also supplied electrical power to the wellhead platform adjacent. Two main PAUs (600 mt each) for separation and water Main Components treatment; total seven process modules fabricated by SHEFS (South Humberside Engineering and Fabrication Services) under contract from Natco; gravitational separators 20m long x 6-8m diameter Mooring 8-point turret mooring system, including: 8 linear chain jacks; turret turning system; sliding bearing system; drag chain transfer system, including slots for Stages 1 & 2, with hoses installed for Stage 1, and future expansion possible by additional drag chain or swivel; 142 mm chain, 250m long; 134 mm coated wire, 1000m long; 2438 mm piles, typically 46m long with pile head driven one metre below seabed; mooring installed by Saipem ('M7000'); FPSO is able to weathervane 270 around turret 20 riser tubes: 4 riser tubes for Stage 1; 5 riser tubes for Stage Riser System 2; 11 slots free plus moonpool; Coflexip 16" and 14" risers Designed to remain on station up to 20 years Other Features Design Life 100-year North Sea storm conditions Design Criteria Norwegian Registration Texaco Ltd., 1 Westferry Circus, Canary Wharf, London E14 Contact 4HA, tel: 0171 719 3000.

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Field Location Installed Country Operator

DOUGLAS FSO

Liverpool Bay Liverpool Bay 1995 UK N/K

Production No Turret CALRAM Wishbone Structure Detailed information not available

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GLAS DOWR FPSO

Newbuild tanker converted to FPSO Durward/Dauntless Between Durward and Dauntless fields, UK 21/16, 21/11, Central Graben, 140 km E of Aberdeen UK Amerada Hess Production Glas Dowr Floating production, storage, offloading Production Amerada Hess Ltd. Owned by Bluewater, on lease to Amerada Hess for a minimum of four years Managed and operated by Bluewater, including wellhead control.

Engineering Bluewater UK (main contract); Heerema Hartlepool (process equipment engineering, procurement, construction, outfitting, hookup & commissioning); ABB Lummus Global (topsides engineering subcontract) Namura Shipyard, Japan (base tanker newbuild); Harland & Build History Wolff, Belfast (marine conversion); Lewis Offshore (mooring system) Kvaerner Stolt Alliance (flowlines, manifolds); Smit Marine Conversion Engineering Contractors (installation, hook-up) Other main Contractors Other Main Contractors May 1996 delivery to Harland & Wolff; marine conversion Delivery work completed by end November 1996 and transferred to Heerema 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 Design The FPSO is based on a standard double-hull tanker newbuild. Marine conversion work consists mainly of: fabrication of moonpool, turret deck housing, crane pedestals and module supports; installation of turret; fabrication of raised forecastle and helideck; modification of ship piping systems, engine room and living quarters; upgrading of coating systems; installation of flare tower; installation of offloading equipment for crude transfer to shuttle tankers. Five main process modules, total 4500 mt, heaviest 1200 Main Components metric tonne Mooring DESIGN: Bluewater designed internal bow turret mooring, free weathervaning; turret diameter 4.87m; fabrication by Lewis Offshore, Stornoway MOORING LINES: 3 x 3 lines, each 1050m, consisting of: chain; Bridon galvanized/Galfan spiral strand wire, 114mm diameter, 9 x 600m; 30 mt Stevpris anchors, 1500 tonne holding power SWIVEL: Bluewater design swivel, 4 fluid paths for gas, water, oil and test, up to 5000 psi operating pressure; max. swivel flow path diameter 10 inches Flexible risers and umbilical risers; initally fitted with seven Riser System risers and two umbilicals; maximum turret capacity 15 slots 20 years Other Features Design Life 50 years survival conditions; design wave heigh (Hs) 12.9m; Design Criteria wave height (Hmax) 23.7m; max. hourly mean wind speed 35.4 m/s Registration Amerada Hess Ltd, 33 Grosvenor Place, London SW1X 7HY, Contact tel: +44 (0)171 823 2626, fax: +44 (0)171 887 2199; Bluewater Offshore Production Systems Ltd., Stationstraat 202, 2910 Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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Design Field Location Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator Owner Manager Engineering Tentech International A/S Build History Conversion Engineering

GRYPHON A FPSO

Tentech 850C design turret moored FPSO Gryphon Gryphon field, UK block 9/18b, North Sea UK Kerr-McGee Production Gryphon A Production, storage, offloading, accommodation Production Kerr-McGee Oil (UK) Ltd. Kerr-McGee and partners Atlantic Power & Gas, Aberdeen (management and marine operation)

Astano SA, El Ferrol, Spain McNulty Offshore Services, Tyneside (main contractor for topsides installation)

Other main Contractors Other Main Contractors September 1993 (installation on field) Delivery Basic Design The vessel is a purpose built FPSO built to the Tentech 850C design without topsides. Most of the production equipment was mounted on a 3.5m high portal frame structure which extends from the rear of the ship's turret to the fire wall forward of the poop deck structure; the major skid mounted equipment includes: gas compressors, power generation, crude oil separation, produced water treatment, water injection, gas dehydration, export metering and chemical injection; fabrication of structures and installation of packages was carried out by McNulty Offshore Services, Tyneside; a flareboom was added, also fabricated by McNulty; the turret transfer system was built by Metool Products Ltd, Nottingham; the 160 metric tonne carousel support structure was built by Swan Hunter Engineering Ltd, Wallsend. Main Components

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Mooring Turret mooring system with ten anchor legs, consisting of: five double winches on a dedicated winch deck; ten lines with 710 mt each holding power; each line initially 400m chain x 84 mm K4, 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 the turret-to-ship transfer system; turret diameter 19.8m ID; rotation and locking system consisting of hydraulic grippers on a plain ring; mooring lines have an emergency release system Risers are handled through 10 x 1.1m diam. riser tubes in the Riser System turret periphery, and are connected to the chokes, manifolds and injection headers on the turret manifold deck; additional risers can be handles through the 8m diam. central turret manifold deck; risers connected to QC/DCs operating individually or simultaneously; top 80 ft of risers are furnished with buoyancy to avoid compression during drop, to avoid damaging subsea installations, and for easy retrieval; see also: 'Subsea Systems' below Designed to remain on station up to 20 years Other Features Design Life 100-year North Sea storm conditions; wave heights 26.5m Design Criteria Norwegian Registration Kerr-McGee Oil (UK) Ltd, 75 Davies Street, London W1Y Contact 1FA, tel: 0171 872 9700, fax: 0171 491 1377; Tentech International AS, Dvergsnes, 4604 Kristiansand, Norway, tel: (038) 04 33 33, fax: (038) 04 04 70; Astano SA, Apartado de Correos 994, 15480 Perlio-Fene, Ferrol (La Coruna), Spain, tel: (341) 431 38 71, fax: (341) 575 87 15.

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JOTUN FPSO

FPSO newbuild Jotun Jotun field, blocks 25/7, 25/8, 25/9, 15/11, Norwegian North Sea Norway Esso Construction Jotun FPSO Production, storage, offloading, accommodation Construction Esso Norge AS Esso and field partners

Engineering Kvaerner Oil & Gas Norway (EPCIC); Aker/Transocean (conceptuals); Kvaerner Masa-Yards (engineering and procurement of hull); Bluewater (engineering and procurement of turret and mooring system); Kvaerner Engineering (engineering of topsides, incl. quarters and helideck) Kvaerner Masa-Yards, Finland (hull); Kvaerner Rosenberg, Build History Stavanger (topsides); Lewis Offshore, Stornoway (turret mooring system); Consafe, Burntisland (quarters) Installation at field, Bluewater/subcontractors; risers, Conversion Engineering umbilicals, flowlines to tie back WHP to FPSO, Rockwater Other main Contractors

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Other Main Contractors Tanker built 1997; installation on field early 1999 Delivery Basic Design The double-skinned hull is of conventional design, with special attention to enabling low cost building techniques to be employed. Topsides contain processing, living quarters, power generation, utility systems, safety and emergency systems, support communication, control, instrumentation and electrical systems, and a flare positioned aft. Total of eleven main modules, including accomodation Main Components module, 850 mt, Consafe Mooring Bluewater designed turret mooring system; fabrication of turret, spider, process deck and gantry by Lewis Offshore, Stornoway; 12-point mooring system Capacity for 8 risers, plus 4 extra for third-party use; each riser Riser System consists of unbonded flexible pipe with a single-layer nylon pressure sheath; they are configured in a lazy-S arrangement which uses two buoyancy arches 60 metres above the seabed; an umbilical transfers electricity, chemical injection and control signals between FPSO and WHP 20 years Other Features Design Life Design Criteria Registration Kvaerner Masa-Yards, PO Box 666, SF-20101 Turku, Finland, Contact tel: +358 21 2666 111, fax: +358 21 2666 999; Bluewater Offshore Production Systems Ltd., Stationstraat 202, 2910 Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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13

MAERSK CURLEW FPSO

Maersk Curlew FPSO Courtesy Shel UKl


Engineering Build History Conversion Engineering

Curlew Curlew D & B fields, UK block 29/7, 220 km E of Aberdeen at 56 44.09'N, 1 17.80'E UK Shell Production Maersk Curlew Maersk Dorset; Bin He; Dorthe Maersk Production, storage, offloading, accommodation, gas export Production Shell UK Exploration & Production Ltd. A.P. Møller FPSO leased from MASPRO (MAS Production Company), a business division of Maersk UK; work subcontracted by MASPRO to MAS Alliance, a JV of AMEC Process and Energy, Single Buoy Moorings and Maersk; MASPRO will operate the FPSO, subsea facilities and standby vessel(s) 1983, at Odense Steel Shipyard, Lindø, Denmark; tanker supplied by A.P. Møller Coflexip Stena Offshore (subsea facilities, installation)

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Other main Contractors Other Main Contractors

MAS Alliance, consisting of: Maersk/SBM (vessel); AMEC (topsides) A&P Offshore, Wallsend, Tyneside (conversion); Tyne Tees Dockyard (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) Sailaway August 1997; installation on field August 1997

Delivery Basic Design The FPSO is a conversion of the tanker 'Maersk Dorset'. Marine conversion work mainly involves: life extension and upgrade of the tanker for 10 years in water without drydocking; substantial modifications to the superstructure; installation of helideck; installation of internal turret mooring system, designed and built by SBM; installation of fire & gas detection; installation of tandem offloading equipment; installation of process equipment; and preparation for later installation of water injection equipment. The work included installation of 50,000m electrical cabling, 3500m of pipework and 1725 tonnes of steel, as well as blasting and painting more than 100,000 m2 of tanks. After initial marine conversion work at A&P the vessel 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 deck to give maximum separation from storage tanks. Main Components Mooring 9 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 Dynamic risers Riser System Topsides 15 years on station; vessel 10 years on station; Other Features mooring 10 years Design Life Survival in 100 year return period criteria Design Criteria Isle of Man Registration Shell UK Exploration and Production, 1 Altens Farm Road, Contact Aberdeen. AB12 3FY, tel: 01224 882000; Maersk Contractors, Floating Production Div., 50 Esplanaden, DK-1098 Copenhagen K, Denmark, tel: +45 3363 3363, fax: +45 3363 4894.

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14

NORDIC APOLLO FSO

Nordic Apollo FSO with STL offloading Courtesy Remontawa SA

Field Installation Conversion Operator Nordic Canadian Shipping/ Ugland Nordic Shipping AS Field Banff, UK Turret Type STL Turret Supplier Advanced Production and Loading AS (APL) Swivel Type Compact Swivel Swivel Supplier Framo AS Detailed information not available

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

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NORNE FPSO

Tentech 900 S design turret moored FPSO Norne Norne field, Norwegian block 6608/10, 200 km offshore mid Norway, 85 km NE of Heidrun field Norway Statoil Production Norne Production Vessel Production, processing, storage, offloading, accommodation Production Statoil Statoil (70% [direct state financial interest 55%]); Norsk Hydro Produksjon A/S (9%); Saga Petroleum A/S & Co (9%); Norsk Agip A/S (6%); Enterprise Oil Norge Ltd (6%)

Manager Engineering Tentech International (pre-engineering and detail design vessel); Kvaerner Engineering (topside conceptual and detail engineering) Far East Levingston Shipbuilding (FELS), Singapore (Yard Nr. Build History 892); Kvaerner Rosenberg, Stavanger (turret) Aker Stord (production facilities); Kvaerner Energy Conversion Engineering (generation, compression); Kongsberg Offshore (subsea installations); Aker Stord/Aker Elektro (hookup &

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commissioning) Other main Contractors Other Main Contractors 4 August 1996 from FELS Delivery Basic Design The 'Tentech 850S' design for a turret moored FPSO is based on experience gained through the Tentech 685 ('Petrojarl 1') and 850C ('Gryphon A') designs, both of which have been successfully employed in the North Sea. The Norne FPSO is built using normal shipbuilding techniques. The process modules and equipment are deck mounted and built according to onshore practices; they will be mounted on a deck 3.5m above the ship's cargo deck to provide an air gap required for safety reasons. There are a total of 24 deck equipment packages weighing approx. 12,000 tonnes in all. 7810 mt topsides dry weight; separation, Kvaerner Process; Main Components heating and cooling medium, ABB Environmental Norsk Viftefabrikk; gas compression incorporating two gas turbine driven injection compressors and an electrically powered recompression unit, Kvaerner Energy (General Electric LM 2500/Nuovo Pignone); produced water treatment, Kvaerner Process, discharge water <40 ppm oil; water injection, Frank Mohn; fiscal metering, Jordan Kent Metering Systems; chemical and methanol injection, Read Process Engineering; oil storage and offloading; emergency flaring only Mooring 12-point turret mooring system, non-disconnectable: turret 46.6m high, diam. 26.0m, weight 5000 mt, fabricated by Kvaerner Rosenberg; each mooring line consists of: 4m diam. x 12m long 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 114 mm 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 one water injection), plus one electrical swivel and one 8 inch pipe swivel for gas injection, 8.3m high, 2.2m diameter, weight 72 mt, fabricated by Single Buoy Moorings; assembly hookup by Aker Stord Total of 24 x 1400 mm riser tubes and 12 x 559 mm chain Riser System tubes arranged around turret; arrangement for Norne consists of 6 x 9 inch oil production, 2 x 9 inch water injection, 1 x 8 inch gas injection and 3 x integrated control umbilicals for chemicals and control systems; the three 730m dynamic LCU umbilicals with 2.5 cm centre tube are manufactured by Alcatel Kabel Norge Hull structure 25 years; field life 20 years Other Features Design Life 100 year significant wave height 16.8 metres; wind speed 45 Design Criteria m/s; current (10m below) 0.91 m/s; min. air temperature -10 C Norwegian Registration Den norske stats oljeselskap a.s., Grenseveien 21, Postboks Contact 300, 4001 Stavanger, Norway, tel: +47 51 80 80 80, fax: +47 51 80 44 70; Tentech International AS, Dvergsnes, 4604 Kristiansand, Norway, tel: +47 38 04 33 33, fax: +47 38 04 04 70.

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16

Design Field Location

NORTH SEA PRODUCER FPSO

Manager

MacCulloch MacCulloch field, UK block 15/24b, 250 km NE of Aberdeen at 58 19'25.2"N, 0 41'10.8"E UK Conoco Production North Sea Producer Dagmar Maersk Production, storage, offloading, accommodation, gas export Production Conoco (UK) Ltd North Sea Production Company (NSPC) (JV Maersk Company Ltd/Tenenge SLP Engineering) NSPC

Engineering Build History

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

Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator Owner


Other main Contractors

Other Main Contractors

Coflexip Stena Offshore (subsea) (subcontract from SLP); work includes installation of FPSO mooring system and hookup of the FPSO on site, connecting flexible risers to turret, and pre-commissioning the system ATA (Armstrong Technology Associates) (hull conversion); Bluewater Engineering (turret); Granherne Engineering (process/utilities) A & P Offshore, Tyneside (life extension conversion work, incl. module support frames and moonpool); Lewis Offshore (turret); Brown Brothers (swivel); SLP Engineering (outfit and commissioning of process and utility topsides)

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Delivery Basic Design The tanker is a sister ship of the 'Dirch Maersk' converted by Bluewater for the Amerada Fife field. 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 of mooring 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 main deck; a total of 36 topsides packages were installed. A total of some 9000 tonnes of new structure and process equipment were added for the conversion. Main Components Mooring Internal 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 weathervaning capability; 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" axial swivel for gas lift and injection; electrical swivel for power and communications; 6" toroidal swivel for gas export; 10" toroidal swivel for production test; 6-path utilities swivel for hydraulics; 3" toroidal swivel for air; 12" toroidal swivel for water injection; 10" toroidal swivel for oil export; twin 16" toroidal swivel for production Coflexip flexible risers from PLEM to FPSO, configured in Riser System '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; ; risers allow the ship 30 metres vertical movement and 60 metres lateral excursion. 20 years; 10 years on station; mooring 10 years Other Features Design Life 100-year return criteria Design Criteria Isle of Man Registration North Sea Production Company, c/o Maersk Contractors, Contact Greenhole Place, Bridge of Don, Aberdeen AB23 8EU, tel: +44 1224 708686, fax: +44 1224 825289.

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Design Field Location Country Operator Status Designation Previous Names: Duty Status of Unit Unit Operator

PETROJARL 1 FPSO

Tentech 685 turret moored FPSO Blenheim Blenheim field, block 16/21b, UK sector, North Sea UK Talisman Production Petrojarl 1 Production, storage, offloading, accommodation Production Talisman Energy

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Owner Manager

Golar Nor Offshore, Trondheim Golar Nor Offshore

Engineering Tentech International A/S, Kristiansand Nippon Kokan KK, Tsu Build History Conversion Engineering Other main Contractors Other Main Contractors May 1986 Delivery Basic Design The Petrojarl 1 is a purpose built turret moored production ship, equipped for operating flexible or rigid production risers. A crude stabilisation plant is located aft of the turret, with crude stored onboard for offloading to a shuttle tanker. The ship is equipped with a workover derrick for wireline/coiled tubing work, and can be upgraded to heavy workover duty. A number of modifications have been made to the original newbuilding: in October and November 1991 the ship was upgraded by HMV to allow for operations from two wells, as well as improved NGL recovery and increased water handling. Between the Hudson and Blenheim contracts in the winter of 1994-5 it underwent modifications at Lloyd Werft in Bremerhaven. These included: installation of a new process control system; replacement of the gas lift compressor with a larger unit; turret altered to accommodate up to eight risers and umbilicals; installation of a Brown Brothers multipath swivel; new riser connections; crude oil coolers; hydrocyclones for produced water treatment; and replacement of 8 x 600m mooring chains with studless type anchors. Main Components Mooring Turret mooring with eight anchor legs, each consisting of a mooring winch, mooring line and 16 mt Vryhof Stevpris anchor; the ship can weathervane through 360 around the turret, which uses a roller bearing system for vertical support of the turret and for centralizing the turret in the turret well; the bearing system is activated and controlled hydraulically; new multipath swivel system fabricated by Brown Brothers and installed 1995 Can produce through rigid or flexible risers; normally flexible Riser System risers in 'wave' configuration are used; risers run from the wells to the turret, through a moonpool in the turret and into a common manifold where an emergency release coupling is employed on each riser; 1995 upgraded to take 8 risers and umbilicals; fitted with three Wellstream 6-inch production and 2-inch gas lift risers for the Blenheim contract; additional riser for Bladon was added early 1997. Other Features Design Life Design Criteria Norway Registration Golar-Nor Offshore A.S., Fjordgata 1, PO Box 482, N-7001 Contact Trondheim, Norway, tel: +47 73 88 01 00, fax: +47 73 88 01 88..

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PETROJARL FOINAVEN FPSO


Conversion of Russian designed submarine tender Foinaven Foinaven field, UK 204/19, 204/24a, 190 km W of Shetlands UK BP Amoco Production Petrojarl Foinaven Anadyr Production, storage, offloading, accommodation Production BP Amoco Golar-Nor Offshore Golar-Nor Offshore


1989, by Wärtsila, Turku yard, Finland

Conversion Engineering Other main Contractors

Other Main Contractors Delivery

Awilco (modifications to increase production capacity) Golar-Nor Offshore (design & construction supervision of FPSO); McDermott Marine Construction (design, procurement, hook-up and commissioning supervision of the FPSO process topsides) Astilleros Espanoles, Astano yard (NC-273), El Ferrol, Spain (vessel); see below for topsides components Installation on field November 1996

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Basic Design The 'Petrojarl IV' is a converted five-year submarine tender originally built in Finland. It has undergone major rebuilding. Length was increased to 252 metres by joining the existing bow and 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 for Foinaven. 4500 mt topsides equipment in 32 pre-assembled packages, Main Components designed by McDermott; 1250 mt turret, McDermott Scotland, Ardersier Turret manifold, FMC Swivel & steering gear, Brown Brothers, Edinburgh Mud mats, Lewis Offshore, Stornoway Separation package, 2000 mt, Kvaerner/Paladon Pressure vessels, Motherwell Bridge (sub from Kvaerner/Paladon), Scotland LP compressors, Howden HP compressors, Dresser Rand Gas dehydration package, Kvaerner/Paladon Water treatment package, Serck Baker Fiscal metering system, Daniel Industries Mooring TYPE: Turret mooring with 360 weathervaning TURRET: Turret in two sections: 26m diam. x 5m deep upper part, 660 mt, and 12m diam. x 17m deep cylindrical lower section, 590 mt; turret contains up to 15 flexible risers plus control umbilicals MOORING LINES: Ten x 1140m x 125mm wire mooring lines, buoyed subsea, leading to 1200m x 111mm anchor chains and 35t Vryhof anchor, installed by Maersk; line design load 1200t SWIVEL: 8m high; high pressure liquid and gas axial and toroidal swivel stack; 5 x liquid flow paths: 1 x 12" production/test, 1 x 12" water injection, 2 x 16" production, 1 x 4" air utility; 1 x 8" electrical swivel Currently 8 flexible 8-10" risers; up to 15 x 10-inch flexible Riser System risers can be accommodated through the turret; risers are held in a pliant wave form by mid-water buoys; risers and flowline jumpers manufactured by Coflexip and installed AugustOctober 1995 by 'Flex Installer' Ground flare, 30m x 12m diameter. Other Features FPSO and subsea equipment designed for a production life of Design Life 25 years; field life estimated 15 years 100-year storm Design Criteria Norway Registration BP Exploration, Farburn Industrial Estate, Dyce, Aberdeen Contact AB2 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.

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19


Manager

RAMFORM BANFF FPSO

Newbuild 'Ramform B380' design monohull FPSO Banff Banff field, UK blocks 29/2a, 22/27a, North Sea UK Conoco Production Ramform Banff Production, storage, accommodation Production Conoco (UK) Limited Petroleum Geo-Services UK Ltd (PGS) (production services contract for supply of FPSO, infield flowlines and gas export line) Atlantic Power & Gas (APS) (subcontract from PGS for production operations)

Engineering PGS (ship); Maritime Tentech (design & supply of upper turret); Aker Maritime (topsides packages) Hyundai Heavy Industries, Mipo, South Korea (hull 9701, Build History lower turret); Brown Brothers, Edinburgh (high pressure swivel stack); Aker McNulty, South Shields (modules, module installation)

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

Other main Contractors Other Main Contractors December 1997 Delivery Basic Design The 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 the requirement for ballasting, thereby increasing the allowable deck load. The Ramform design has 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 to require only half the building time and one-third the amount of steel as comparable conventional FPSOs. The Ramform Banff FPSO vessel suffered major difficulties in the year 2000, being subject to violent motion in the seaway attributed to deficiencies in the novel hull design. This produced excessive roll, outside design specifications. The consequence was a number of system failures and difficulties for personnel. The vessel has undergone significant design changes. Topsides packages delivered by various suppliers and installed Main Components at South Shields Mooring Fully weathervaning turret mooring system; 100 mt x 9m high swivel stack, incorporating five toroidal flow paths, and axial gas swivel, and an electrical slip ring plus utilities swivel Seven flexible risers; provision for a total of 15 risers in turret. Riser System Other Features Design Life Design Criteria Isle of Man Registration Conoco (U.K.) Limited, Rubislaw House, Anderson Drive, Contact Aberdeen AB15 6FZ, tel: 01224 205000, fax: 01224 205470.

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SCHIEHALLION FPSO

Harland & Wolff designed newbuild FPSO Schiehallion Schiehallion field, UK 204/20, 204/25b, 204/25a, 150 km west of ShetlandUK UK BP Amoco Production Schiehallion FPSO Production, storage, offloading, accommodation Production BP Amoco Schiehallion partners

Engineering Altra Consultants (topsides conceptuals); Harland & Wolff (hull); Single Buoy Moorings (turret/mooring); Brown & Root (process topsides); Trafalgar John Brown (subsea); Fuel Subsea Offshore (DMac connection system) Harland & Wolff, Belfast (ship); Barmac (topsides) Build History 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, IHC Holland (sub-contracts from SBM); Brown & Root AOC (hookup); Coflexip Stena Offshore (flexible risers); SubSea Offshore (installation of subsea facilities, tow-out and mooring); 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 Contractors Other Main Contractors First steel cut 5 October 1995; delivery 1998 Delivery Basic Design Some 10,000 mt of process topsides will be added to the ship, which is a newbuild based on a conventional tanker hull. 6300 metric tonne process deck, fabricated by Barmac, Main Components Ardersier in 37 major sub-assemblies. Mooring Top 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 the height of the flare stack; 14 x anchor legs consisting of 2800 tonnes of 6.25"/159mm LRS grade R3S studless chain, supplied by Scana Ramnas, and 2100 tonnes of sheathed spiral strand mooring wire, 140mm strand with 1700 mt breaking and 146mm strand with 1900 mt breaking, supplied by Bridon ; legs fixed to 100-tonne suction anchors at 1650m radius; turret capacity for up to 24 risers 15 x dynamic risers containing 130 steel or plastic encased Riser System pipes and 2 umbilicals; some risers pre-installed; total riser capacity 24. Hull design life 25 years; fatigue life 50 years; field life around Other Features 17 years Design Life 100-year storn criteria Design Criteria British Registration BP Exploration, Farburn Industrial Estate, Dyce, Aberdeen Contact AB2 0PB, tel: 01224 832000.

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TRITON 1 FPSO

Newbuild FPSO based on tanker design Triton Triton Project (Bittern, Guillemot West and Guillemot NW fields) UK Amerada Hess Construction Triton 1 Production, storage, offloading, accommodation Construction Amerada Hess Amerada Hess and partners

Engineering Kvaerner Oil & Gas, Croydon (EPIC); Bluewater (turret mooring system) Samsung Heavy Industries, South Korea (hull); Sembawang Build History Engineering, Singapore (supplementary work on hull); Kvaerner Oil & Gas, Port Clarence (topsides); Lewis Offshore (turret/spider)

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Coflexip Stena (riser systems); Stolt Comex Seaway (subsea installation)

Other main Contractors Other Main Contractors Drilling and subsea work under management of Shell Delivery Basic Design The tanker was a double hulled design being built by Samsung for Tanker Pacific of Singapore, when the contract was taken over by Kvaerner Oil & Gas Ltd (KOGL) for use as an FPSO for Amerada Hess. The original design was upgraded by Amerada/KOGL and the ship was 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, fire pumps, HVAC system and major deck cable trays and cabling work. The turret casing, with top and bottom bearing housings 6m diameter and 25m apart, was also installed. The FPSO was then moved to the KOGL yard on Teesside for installation of the turret and completion of the topsides. Two process and two utility skids on the main deck; 7500 mt Main Components process and utilities equipment, fabricated and installed by Kvaerner, Port Clarence; turret/spider 1100 mt, fabricated by Lewis Offshore. Mooring TURRET: Bluewater designed internal bow turret, 4.4m diameter; 360° weathervaning MOORING: 9-leg turret mooring consisting of 3 x 3 groups of chain/wire, 1250m each SWIVEL: 8 toroidal swivels, 1 electrical slipring 9 flexible risers; 2 umbilical risers Riser System 20 years; designed to remain on station for at least 15 years. Other Features Design Life Design Criteria Registration Amerada Hess Ltd, 33 Grosvenor Place, London SW1X 7HY, Contact tel: 0171 823 2626, fax: 0171 887 2199.

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22

UISGE GORM FPSO

Manager

FPSO based on converted product tanker Fife Fife field, UK blocks 31/26a, 31/27a, 39/1, 39/2, Central North Sea, 337 km ESE of Aberdeen, south of Ekofisk UK Amerada Hess Production Uisge Gorm Dirch Maersk Production, storage, offloading, accommodation Production Amerada Hess Ltd. Bluewater Group (4 year contract to Amerada Hess including provision of chartered shuttle tankers) Bluewater Group


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



Other main Contractors Other Main Contractors

Delivery

Rockwater (EPIC for flowlines, risers and anchor systems); Brown & Root (engineering sub-contractor to Rockwater); ABB Global Engineering (interface engineering) Bluewater Group Astilleros Espanoles, Cadiz (vessel conversion); Lewis Offshore (turret, turntable, spider); Natco (process systems and glycol plant); McNulty Offshore Services (assembly and outfitting) March 1995 delivery at Tyneside from shipyard, followed by 12 weeks outfitting, including 20 lifts up to 580 metric tonne using 'Taklift 6'

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Basic Design The FPSO was converted from a conventional motor tanker 'Dirch Maersk' purchased from AP Moeller; main modifications included: turret mooring; multiple production, gas, water injection and gas lift risers plus control umbilicals; flare; dual fuel power generation and processing equipment located in large modules, located on the main deck supports; stern offloading system; control and monitoring system; helideck; and upgraded safety features. Main Components Mooring The Bluewater designed 4.5m diameter internal turret is located close to the bow and consists of the following main components: nine anchor piles to anchor the nine individual mooring legs to the seabed; nine composite (100m Ramnas 5.25" chain/1100m Bridon 5.25" spiral strand cable/420m Ramnas 5.25" chain to surface) mooring legs grouped in 3 x 3 mooring legs equally spaced at 120 apart; an internal turret with spider to connect the nine mooring legs by means of automatic chain stoppers (the turret also carries the hawse pipes through which the risers 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 conduct well fluids, injection water, gas and umbilicals through the turret to a platform above the main bearing; a swivel stack for the passage of product, test product, gas water and air, at pressures to 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 & chains supplied under subcontract to Rockwater; mooring wire/chain installed by Smit Maritime ('Taklift 8')/Ugland ('Maxita'). Originally nine risers in turret: 4 x production, 4 x gas lift, 1 x Riser System water injection, plus space for another 8 risers; additional risers added for Fife, Fergus and Flora tie-ins; flowlines, risers and anchor systems are leased from Rockwater by the Bluewater Group. Segregated ballast, UMS and IGS Other Features 15 years Design Life 50 year environmental loads in North Sea Design Criteria Netherlands Antilles Registration Bluewater Offshore Production Systems Ltd., Stationstraat Contact 202, 2910 Essen, Belgium, tel: +32 36700260, fax: +32 36700269.

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VARG FPSO

Tentech 700 SP design turret moored FPSO Varg Norway 15/12b, 35 km S of Sleipner, ESE of Maureen Norway Saga Production Varg FPSO Production, storage, offloading, accommodation Production Saga Petroleum A/S Saga Petroleum A/S (35%); Statoil (35%); Norwegian state direct financial interest (30%)

Manager Engineering Maritime Tentech (hull); FELS (turret/fluid tranfer system) Keppel FELS (Far East Levingston Shipyard), Singapore Build History (ship/turret/topsides integration); ABB Lummus Global (process topsides, subcontract from FELS) Coflexip Stena Offshore (subsea); Aker Maritime Conversion Engineering Contractors/Maersk Supply Service (tow-out and hookup); Stolt Comex Seaway (transport and installation of mooring system) Other main Contractors Other Main Contractors 6 September 1998 Delivery Basic Design Operating topside weight 5200 metric tonne Main Components

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Mooring MOORING SYSTEM Turret mooring system; 10 x mooring lines; 10 x 72-inch diameter pile anchors. TURRET TRANSFER SYSTEM Metool designed and built turret transfer system; drag chain system allowing 270 weathervaning; system manages all lines required for production, water injection, gas injection, well testing, wells service, as well as electro-hydraulic supply subsea, fire water and air supply; also included are emergency power and control jumper cables and fire water hoses between the vessel and the turret; designed to operated without power in 100-year storm conditions. Ten riser guide tubes; risers are supported by a 180 metric Riser System tonne steel buoy positioned 40 metres above the seabed, and anchored to the seabed by a steel template; system supplied by Stordbase Fifteen years without docking; extendable to 25 years with Other Features minor modifications Design Life 100-year return storm criteria Design Criteria Registration Saga Petroleum ASA, Kjørboveien 16, P.O.Box 490, N-1301 Contact Sandvika, Norway, tel: +47 67 12 66 00, fax: +47 67 12 66 66.

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24

Location Turret Type Turret Supplier FTS type FTS Supplier

VINGA FSO

UK Fulmar Field 1993 - 1997 Submerged Turret Loading (STL) Advanced Production and Loading AS (APL) Compact Swivel Framo AS

Detailed information not available

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ANNEX F

ANNEX F Information on World-wide FPSO Installations

Key World-wide FPSOs listed in alphabetical order Includes UK and other North Sea installations See Annex A for summary information on UK FPSOs and FSUs See Annex E for more detail on individual UK and North Sea FPSOs and FSUs

F1

F2

ANNEX F

Annex F World Wide FPSOs Name Agbani Al Zaafarana Anasuria Anoa Natuna Aoka Mizu Armada Perkasa Åsgard A BA VI Balder FPU Berge Hugin Bleo Holm Bo Hai Ming Zhu Bo Hai You Yi Hao Bonga TBN Buffalo FPSO Captain FPSO Challis Venture Chang Qing Hao Chi Linh Conkouoati Cossack Pioneer Ea FPSO Espoir FPSO F601 FPSO Hull FPSO Firenze FPSO II FPSO VI Girassol FPSO Glas Dowr Griffin Venture Gryphon A Hitra Isis FPSO Jabiru Venture Jamestown Jotun FPSO Kakap Natuna Khrak Knock Taggart Maersk Curlew Modec Venture I Nan Hai Fa Xian Nan Hai Kai Tuo Nan Hai Sheng Li Nan Hai Xi Wang Navion Munin New Orleans

Country Nigeria Egypt UK Indonesia Japan Malaysia Norway Vietnam Norway UK UK China China Nigeria Australia UK Australia China China Congo Australia Nigeria Ivory Coast Japan Italy Brazil Brazil Angola UK Australia UK Malaysia Tunisia Australia West Africa Norway Indonesia Iran Nigeria UK Australia China China China China China Tunisia

Field Abana Zaafarana Teal, Teal South, Guillemot A Anoa None PM-3 Åsgard Rong Balder Pierce Ross Suizhong SZ-36-1 Bozhong BZ-28-1 Bonga Buffalo Captain Challis/Cassini Bozhong BZ-34-2/4 Bach Ho Yombo Wanaea Ea Espoir None Aquila Marlim South Espadarte Girassol Durward/Dauntless Griffin Gryphon MASA Isis Jabiru None Jotun Kakap KH Soroush Akam, Adanga, et al. Curlew Elang/Kakatua Huizhou HZ-21-1 Xijiang 24-3 Liuhua 11-1 Weizhou 10-3 Lufeng 22-1 Didon

F3

Status of Unit Production Production Production Production Construction Production Construction Production Construction Production Production Production Production Probable Construction Production Production Production Production N/K Production Probable Probable Available Production Production Construction Construction Production Production Production Construction Probable Production Available Construction Production Probable Production Production Production Production Production Production Production Production Construction

ANNEX F

Name N'Kossa NKP Norne Production Vessel North Sea Producer Northern Endeavour Ocean Producer P-31 P-33 P-34 P-35 P-37 Petrojarl 1 Petrojarl Foinaven Petroleo Nautipa Petronas Carigali Prostor II Ramform Banff Rang Dong I Ruby Princess San Jacinto Schiehallion FPSO Seillean Tantawan Explorer Terra Nova FPSO Triton 1 Uisge Gorm Ukpokiti FPSO Varg FPSO Whakaaropai Zafiro Producer

Country Congo Norway UK Australia Angola Brazil Brazil Brazil Brazil Brazil UK UK Angola Malaysis Angola UK Vietnam Vietnam Indonesia UK Brazil Thailand Canada UK UK Nigeria Norway New Zealand Equatorial Guinea

Field N'Kossa Norne MacCulloch Laminaria/Corallina Kiabo Albacora Marlim Barracuda Marlim Marlim Blenheim Foinaven Kiame MASA Kuito Banff Rang Dong Ruby Sembilang Schiehallion Roncador Tantawan Terra Nova Triton Fife Ukpokiti Varg Maui B Zafiro

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

F4

Status of Unit Production Production Production Construction Production Production Production Production Construction Construction Production Production Production Production Construction Production Production Production Production Production Production Production Construction Construction Production Production Production Production Production

ANNEX F

Figure F1 Distribution of the world FPSO fleet, March 2001 Courtesy Bluewater website

F5

F6

ANNEX G

ANNEX G Information on specific FPSO turret and FTS system manufacturers

G1

G2

ANNEX G

Annex G

Turret and Swivel Suppliers http://www.framoeng.no

APL Advanced Production and Loading AS PO Box 53 N-4801 Arendal Norway Tel: +47 37 00 25 00 Fax: +47 37 02 41 28 E-mail: [email protected] http://www.apl.no Note: Turret supplier

Note: Swivel supplier SWIVEL STACKS FOR FSU/FPSO : STL/ STP/ SAL/ Ext. & Int. Turret Norsk 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 (FSOSAL)

Astano Asilleros Espanioles Ochandiano 14-16 28023 El Plantio Madrid Spain Tel +34 91 387 81 00 Fax +34 91 387 81 14

FELS Ltd Keppel FELS Energy & Infrastructure Ltd 31 Shipyard Road, Singapore 628130 Tel: (65)2676700 Fax:(65)2617719, (65)2651927 http://www.keppelfels.com.sg/index.htm

Bluewater Engineering BV Marsstraat 33 PO Box 3102 2130 KC Hoofddorp The Netherlands Tel +31 23 5682800 Fax +31 23 5652053 http://www.bluewater-offshore.com/ Note: Swivel and Turret supplier

Note: Turret supplier IMODCO Ltd IMODCO Inc. 27001 Agoura Road, Suite 350 Calabasas Hills, CA 91301-5359 USA +1 (818)880-0300 ext. 258 Fax: +1 (818)880-0333 http://www.imodco.com Note: Swivel and Turret supplier Part of IHC/Calland Group and sister company to Single Buoy Moorings

Brown Brothers and Co Ltd Rolls Royce - Marine Taxiway Hillend Industrial Park Dalgety Bay Fife KY11 9JT Tel:+44 (0)1383 823188 Fax +44 (0)1383 824038 Note: Swivel supplier

Maritime Tentech AS Servicebox 408 4604 Kristiansand Norway Tel: +47 38 05 75 00 Fax: +47 38 05 75 05 E-mail: [email protected] E-mail: [email protected] http://www.akermaritime.no Note: Swivel and Turret supplier

Framo Engineering AS PO Box 174 N-5049 Sandsli Norway Tel: +47 55 92 88 00 Fax: +47 55 92 89 10 E-mail: [email protected]

G3

ANNEX G

SOFEC Inc 6677 North Gessner Houston TX 77040 Tel 713 510 6600 Fax 713 510 6601 http://www.Sofec.com Note: Swivel and Turret supplier Note: Part of FMC

METOOL Metool Products Ltd Lilac Grove, Beeston, Nottingham NG9 1PG, England. Tel: +44 (0) 115 922 5931 Fax: +44 (0) 115 922 4578 E-mail: [email protected] Nortrans Offshore Ltd Clarendon House, 2 Church Street PO Box HM 1022 Hamilton DX Bermuda c/o 1 International Business Park #10-01 The Synergy Singapore 609917 Tel: +65 665 6200 Fax: +65 567 5110 E-mail: [email protected] http://www.nortrans.com Note: Swivel and Turret supplier Camar Nusantara Turret Mooring; Al Zaafarana Turret Mooring ; Ruby Princess FPSO Turret Mooring; SWIVALS: Single Pass Swivel, Multiple Path Crude Oil and Water Injection Swivel; Single Path Toroidal Swivel for CALM Buoy SBM Single Buoy Moorings Inc Head Office 5, Route de Fribourg- P.O.Box 152 CH-1723- 1723 Marly Switzerland Tel (41) 26 437 1161 Fax (41) 26 436 3313 http://www.singlebuoy.com Engineering Office 24, Ave de Fontvieille- P.O. Box 199 MC 98007 Monaco Cedex Principality of Monaco Tel (377) 92 05 15 00 Fax (377) 92 05 32 22 Note: Swivel and Turret supplier Known as SBM, SBM Offshore Systems produces the turrets systems Part of IHC/Calland Group and sister company to IMODCO

G4

ANNEX H Glossary of Terms

H1

H2

Single-Point-Mooring Glossary ALC ALP ARTC BMIT BTM CALM SY CALM CALRAM CBM CONTROL ECT EDT ELSBM FDPSO FLP FPSO FSO FSU FTSPM IAT IDT IPT JSY OLT PLEM RMD RRT RTM SAL SALM SALRAM SALS SAP SBM SBS SLB SPAR SPM SPM SPOLS

Articulated Loading Column Articulated Loading Platform Articulated Loading Column Bottom Mounted Internal Turret Buoyant Turret Moored Catenary Anchor Leg Mooring Soft Yolk Catenary Anchor Leg Mooring Catenary Anchor Leg Rigid Arm Catenary Buoy Mooring Control Buoy External Cantilevered Turret External Disconnectable Turret Exposed Location Single Buoy Mooring Floating Drilling Production Storage and Offloading vessel Floating Loading Platform Floating Production Storage and Offloading vessel Floating Storage and Offloading vessel Floating Storage Unit Fixed Tower Single Point Mooring Internal Active Turret Internal Disconnectable Turret Internal Passive Turret Jacket Soft Yoke Offshore Loading Tower Pipeline End Manifold Rigid Mooring Buoy Rigid Riser Tower Riser Turret Moored Single Anchor Loading Single Anchor Leg Mooring Single Anchor Leg Rigid Arm Mooring Single Anchor Leg Storage Single Anchor Production Single Buoy Mooring Single Buoy Storage Submerged Loading Buoy Floating Cylinder Facility Single Point Mooring (General term) Single Point Mooring Single Point Offshore Loading System

SPT STL STP TCMS TOWER HM TOWER STW TOWER SW TOWER TRMS UKOLS VALM

Single Point Turret Submerged Turret Loading Submerged Turret Production Tripod Catenery Mooring and Loading System Tower with hawser mooring Submerged Tower with wishbone Tower with submerged wishbone Loading Tower Turret Riser Mooring System Ugland Kongsberg Offshore Loading System Vertical Anchor Leg Mooring

CALM Catenary Anchor Leg Mooring

CALM SY Catenary Anchor Leg Mooring Soft Yolk

H3

ECT External Cantilevered Turret

ETD External Cantilevered Turret RTM Riser Turret Moored

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

H4

SAL Single Anchor Loading

SALM Single Anchor Leg Mooring

TOWER Loading Tower TOWER HM Tower with hawser mooring TOWER SW Tower with submerged wishbone TOWER STW Submerged Tower with wishbone

H5

Printed and published by the Health and Safety Executive C0.35 3/02

ISBN 0-7176-2295-9

OTO 2001/073

£60.00

9 780717 622955

FPSO-Bow Mounted vs. Aft Mounted

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