LNG船舶（英文）

Marine Transportation of LNGMarine Transportation of LNG Intertanko ConferenceIntertanko Conference March 29, 2004March 29, 2004 Bob CurtBob Curt Ship Acquisition Manager, QatargasII Ship Acquisition Manager, QatargasII DevelopmentDevelopment 2 Marine Transportation of LNGMarine Transportation of LNG nn TopicsTopics –– What is LNG?What is LNG? –– History of LNG Marine TransportationHistory of LNG Marine Transportation –– LNG Carrier FleetLNG Carrier Fleet –– Major LNG Trade RoutesMajor LNG Trade Routes –– LNG Vessel Types and ParticularsLNG Vessel Types and Particulars –– Safety and Risks of LNG TransportationSafety and Risks of LNG Transportation –– Technology Advances for LNG VesselsTechnology Advances for LNG Vessels –– New LNG Projects New LNG Projects –– Qatar LNG ProjectsQatar LNG Projects 3 What is LNG?What is LNG? nn LNG is natural gas that has been liquefied by LNG is natural gas that has been liquefied by being cooled to approximately being cooled to approximately --160160°°C (C (--260260°°F)F) –– LNG ~ 1/600 volume of Natural Gas, making it LNG ~ 1/600 volume of Natural Gas, making it practical to transport by shippractical to transport by ship 4 What is LNG?What is LNG? nn Properties and characteristicsProperties and characteristics –– Typically ~ 95% methane (CHTypically ~ 95% methane (CH44) with small amounts ) with small amounts of ethane, propane, butane and nitrogenof ethane, propane, butane and nitrogen –– Colorless, odorless, nonColorless, odorless, non--toxic, nontoxic, non--carcinogenic and carcinogenic and in liquid form is ~45% the density of waterin liquid form is ~45% the density of water –– Vapors are ~ 50% density of air and will rise under Vapors are ~ 50% density of air and will rise under normal atmospheric conditions (propane/butane normal atmospheric conditions (propane/butane heavier than air)heavier than air) –– Can be stored and transported in insulated tanks at Can be stored and transported in insulated tanks at standard atmospheric pressurestandard atmospheric pressure 5 What is LNG?What is LNG? nn Flammability characteristicsFlammability characteristics –– Flammable when mixed with air concentrations Flammable when mixed with air concentrations between 5% between 5% -- 15% (methane)15% (methane) –– Not generally considered explosiveNot generally considered explosive 6 What is LNG?What is LNG? nn LNG spill characteristicsLNG spill characteristics –– No pollution issuesNo pollution issues nn Small spills evaporate quicklySmall spills evaporate quickly nn Large spills flow prior to vaporizationLarge spills flow prior to vaporization nn Not a persistent cargo: OPA 90, etc. are not Not a persistent cargo: OPA 90, etc. are not applicableapplicable –– LNG is cryogenic, contact with some nonLNG is cryogenic, contact with some non--cryogenic cryogenic material causes material to become brittle and fail; material causes material to become brittle and fail; exposure to skin will cause cryogenic burnsexposure to skin will cause cryogenic burns 7 History of LNG Marine TransportationHistory of LNG Marine Transportation nn Historical LNG shipping timeline:Historical LNG shipping timeline: –– 19121912: First LNG plant built in West Virginia: First LNG plant built in West Virginia –– 19141914: Godfrey Cabot patents a barge to carry liquid : Godfrey Cabot patents a barge to carry liquid gas, waterborne transportation technically feasiblegas, waterborne transportation technically feasible –– 19591959: METHANE PIONEER, converted cargo ship, : METHANE PIONEER, converted cargo ship, carries 5kmcarries 5km33 of LNG between Lake Charles and UK of LNG between Lake Charles and UK demonstrating feasibility of waterborne transportationdemonstrating feasibility of waterborne transportation 8 History of LNG Marine TransportationHistory of LNG Marine Transportation nn Historical LNG shipping timeline:Historical LNG shipping timeline: –– 19641964: Methane Princes & Methane Progress, 27.4 km: Methane Princes & Methane Progress, 27.4 km33, , become first commercial LNG vessels, operating become first commercial LNG vessels, operating between Algeria and the UKbetween Algeria and the UK –– 19691969: Gas Transport membrane system vessels Polar : Gas Transport membrane system vessels Polar Alaska & Arctic Tokyo, 71.5kmAlaska & Arctic Tokyo, 71.5km33, begin service from , begin service from Alaska to Tokyo Alaska to Tokyo –– 19711971: Kvaerner develops 88km: Kvaerner develops 88km33 Moss spherical Moss spherical containment systemcontainment system 9 History of LNG Marine TransportationHistory of LNG Marine Transportation nn Historical LNG shipping timeline:Historical LNG shipping timeline: –– 19751975: 100 km: 100 km33 size exceeded with delivery of French size exceeded with delivery of French built BEN FRANKLIN, 120kmbuilt BEN FRANKLIN, 120km33 –– 19791979: Formation of Society of International Gas : Formation of Society of International Gas Tanker and Terminal Operators (SIGTTO) to Tanker and Terminal Operators (SIGTTO) to promote safe and reliable operation of gas tankers and promote safe and reliable operation of gas tankers and terminalsterminals –– 19931993: Polar Eagle and Arctic Sun, 83.5km: Polar Eagle and Arctic Sun, 83.5km33, with IHI , with IHI prismatic containment system begin service from prismatic containment system begin service from Alaska to Tokyo Alaska to Tokyo 10 LNG Carrier FleetLNG Carrier Fleet nn Current Fleet Profile Current Fleet Profile –– Approximately 155 LNG carriers in operation with a Approximately 155 LNG carriers in operation with a total capacity of about 18 million mtotal capacity of about 18 million m33 nn 120 km120 km33 or larger ~ 125 carriers or larger ~ 125 carriers nn 50 km50 km3 3 to 120 kmto 120 km33 ~ 15 carriers~ 15 carriers nn Less than 50 kmLess than 50 km33 ~ 15 carriers~ 15 carriers 11 LNG Carrier FleetLNG Carrier Fleet nn Current Fleet Profile Current Fleet Profile –– About FiftyAbout Fifty--five LNG carriers are currently under five LNG carriers are currently under constructionconstruction nn 138 km138 km3 3 or greater ~ 46 carriers or greater ~ 46 carriers nn Less than 138 kmLess than 138 km33 ~ 9 carriers~ 9 carriers nn 5 N/B delivered so far 20045 N/B delivered so far 2004 nn 6 new orders placed so far 20046 new orders placed so far 2004 12 LNG Carrier FleetLNG Carrier Fleet Historical LNG Fleet Growth 0 50 100 150 200 250 300 1971 1976 1981 1986 1991 1996 2001 2006 ProjectedYear V es se ls Current Fleet Newbuilding Fleet Source: The Gas Carrier Register 2003, ClarksonSource: The Gas Carrier Register 2003, Clarkson 13 Major LNG Trade RoutesMajor LNG Trade Routes 65 14 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn LNG Carriers are classified by their cargo containment LNG Carriers are classified by their cargo containment designsdesigns nn Types of cargo containment systems:Types of cargo containment systems: –– KvaernerKvaerner--Moss spherical tank Moss spherical tank –– Membrane systemMembrane system nn Gaz Transport and Technigaz (GTT) Membrane systemsGaz Transport and Technigaz (GTT) Membrane systems –– Mark III, No96, Cs1Mark III, No96, Cs1 –– IHI PrismaticIHI Prismatic 15 Existing Worldwide Fleet Cargo Containment System Market Share Kvaerner- Moss 51% Gaz Transport 37% Technigaz 11% Various 1% Source: Lloyd’s Register Fairplay, July 2003Source: Lloyd’s Register Fairplay, July 2003 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars 16 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn KvaKvaernererner--MossMoss 17 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn KvaKvaernererner--MossMoss 18 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn GTT No 96 Membrane Containment GTT No 96 Membrane Containment SystemSystem 19 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn GTT No 96 Membrane Containment GTT No 96 Membrane Containment SystemSystem Invar anchor Tank cross section showing dualTank cross section showing dual membrane interior to hull tankmembrane interior to hull tank Stacked plywood boxes coveredStacked plywood boxes covered by 0.7mm Invar membranesby 0.7mm Invar membranes Perlite Insulation Prefabricated Plywood Box Box Anchor 20 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn GTT Mark III Membrane Containment GTT Mark III Membrane Containment SystemSystem 21 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn GTT Mark III Membrane Containment GTT Mark III Membrane Containment SystemSystem Stainless Steel Stacked foam panels covered by Triplex and Stainless Steel membranes Tank cross section showing dual membrane interior to hull tank 22 LNG Vessel Types and ParticularsLNG Vessel Types and Particulars nn IHI Self Supporting Type B Prismatic IHI Self Supporting Type B Prismatic TankTank 23 Safety and Risks of LNG TransportationSafety and Risks of LNG Transportation nn LNG shipping industry has an excellent safety recordLNG shipping industry has an excellent safety record –– No shipboard fatalities over the life of the industry No shipboard fatalities over the life of the industry associated with cargoassociated with cargo –– No major losses of cargo and only one minor LNG onNo major losses of cargo and only one minor LNG on-- board fire (lightning strike near vent riser, cargo tanks board fire (lightning strike near vent riser, cargo tanks not affected)not affected) –– Two groundings resulting in major hull breaches Two groundings resulting in major hull breaches without cargo losswithout cargo loss 24 Safety and Risks of LNG TransportationSafety and Risks of LNG Transportation nn LNG shipping industry has an excellent safety recordLNG shipping industry has an excellent safety record –– Since 1974 there have been on average ~ 75 LNG Since 1974 there have been on average ~ 75 LNG carriers in operation, last major grounding incident carriers in operation, last major grounding incident was in 1980 with no loss of cargowas in 1980 with no loss of cargo –– Over 33,000 LNG voyages covering more than 60 Over 33,000 LNG voyages covering more than 60 million miles during the history of the industrymillion miles during the history of the industry –– LNG shipping is viewed as a lower risk vs. crude oil, LNG shipping is viewed as a lower risk vs. crude oil, all things being equal (i.e. operator experience, vessel all things being equal (i.e. operator experience, vessel size)size) –– P&I insurance is ~ 25% less that for LNG carriers vs. P&I insurance is ~ 25% less that for LNG carriers vs. crude oil carrierscrude oil carriers –– Liability focus is on fire and damage vs. pollutionLiability focus is on fire and damage vs. pollution 25 Technological Advances for LNG CarriersTechnological Advances for LNG Carriers nn Containment SystemsContainment Systems nn Onboard reOnboard re--liquefactionliquefaction nn Alternative Propulsion UnitsAlternative Propulsion Units 26 Technological Advances for LNG CarriersTechnological Advances for LNG Carriers nn Large LNG vessel Containment SystemsLarge LNG vessel Containment Systems nn Membrane containment system for LLNG ships Membrane containment system for LLNG ships considered more favorable designconsidered more favorable design –– More capacity vs. spherical ship of similar sizeMore capacity vs. spherical ship of similar size –– Suez Canal toll advantageSuez Canal toll advantage –– Faster coolFaster cool--down of tanksdown of tanks –– Lower cost due to inherent cost of the system and Lower cost due to inherent cost of the system and increased competition due to greater shipyard capacityincreased competition due to greater shipyard capacity 27 Technological Advances for LNG CarriersTechnological Advances for LNG Carriers Benchmark Membrane CLNG Ship Representative 138 km3, 4 cargo tanks 270m length x 43m beam x 11.5 draft Qatar Membrane LLNG Ship (QQatar Membrane LLNG Ship (Q--Flex)Flex) About 205 kmAbout 205 km33, 5 cargo tanks, 5 cargo tanks 315m length x 50m beam x 12m draft315m length x 50m beam x 12m draft Qatar Membrane LLNG Ship (QQatar Membrane LLNG Ship (Q--Max)Max) About 250 km3, 5 cargo tanksAbout 250 km3, 5 cargo tanks 345 m length x 55 m beam x 12 m draft345 m length x 55 m beam x 12 m draft 28 Technological Advances for LNG CarriersTechnological Advances for LNG Carriers Conventional design is steam turbine with duel fuel: HFO Conventional design is steam turbine with duel fuel: HFO and boiland boil--offoff nn Diesel more efficient and may be required for higher HP Diesel more efficient and may be required for higher HP LLNG vessels:LLNG vessels: –– Slow speed diesel Slow speed diesel -- twin screw fueled by HFOtwin screw fueled by HFO nn Cannot burn boilCannot burn boil--off, requires on board reoff, requires on board re--liquefactionliquefaction –– Medium speed dual fuel diesel Medium speed dual fuel diesel -- single or twin screw, single or twin screw, direct or electric drive, fueled by MDO with boildirect or electric drive, fueled by MDO with boil--off or off or HFOHFO –– Gas turbines aeroGas turbines aero--derivative units derivative units -- mainly twin screw, mainly twin screw, fueled with MGO or gas, possible waste heat recovery fueled with MGO or gas, possible waste heat recovery to achieve competitive efficiency and high flexibility to achieve competitive efficiency and high flexibility but with increased investmentbut with increased investment 29 New LNG ProjectsNew LNG Projects PPPrrrooojjjeeecccttt EEEsssttt... CCCaaapppaaaccciiitttyyy(((MMMMMMtttpppaaa))) TTTrrriiinnniiidddaaaddd TTTrrraaaiiinnn 444 555...222 NNNiiigggeeerrriiiaaa TTTrrraaaiiinnnsss 444,,, 555 888...444 EEEgggyyypppttt 111222...000 NNNooorrrwwwaaayyy (((SSSnnnooohhhvvviiittt))) 444...000 MMMaaalllaaayyysssiiiaaa TTTiiigggaaa (((TTTrrraaaiiinnn 222))) 333...444 AAAuuussstttrrraaallliiiaaa 888...000 RRRaaasss LLLaaaffffffaaannn (((TTTrrraaaiiinnn 444))) 444...777 SSSaaakkkhhhaaallliiinnn 999...666 TTToootttaaalll 555555...333 * 2003 Worldwide LNG demand about 125 MM tons Liquefaction Capacity* Under Construction (2003)Liquefaction Capacity* Under Construction (2003) GTI & other industry sourcesGTI & other industry sources 30 Qatar LNG ProjectsQatar LNG Projects nn RasGasII: Requires 8 CLNG vessels for RG train 5. RasGasII: Requires 8 CLNG vessels for RG train 5. Production commences end 2006Production commences end 2006 –– Destination EuropeDestination Europe nn QatargasII: Requires 16 LLNG vessels for QGII trains 4 QatargasII: Requires 16 LLNG vessels for QGII trains 4 and 5. Train 4 production commences early 2008and 5. Train 4 production commences early 2008 –– Destination UKDestination UK nn 33--4 additional large trains planned to commence 4 additional large trains planned to commence production by 2010production by 2010--11, each requiring 1011, each requiring 10--12 Q12 Q--Flex size Flex size vesselsvessels –– Destination USDestination US