Ship To Ship LNG Transfer Technology

 

Ship to Ship LNG Transfer Technology

 

Excelsior Class EBRV 138,000 m3

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LNG STS Transfer  Double Banked at Anchor 

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LNG STS Configurations LNG transferred across dock from LNG Carrier  LNG transferred from LNG Carrier to EBRV down the dock Gas Delivered from EBRV to facility via HP Gas Arm Gas Delivered from EBRV to facility via HP Gas Arm

LNG

Gas LNG Gas

LNG Transferred via Ship to Ship Transfer  Gas Delivered from EBRV to facility via HP Gas Arm

LNG

Gas

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LNG Lightering

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Double-Banked at Bahia Blanca

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Bahía Blanca GasPort (Argentina)

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Dockside LNG regasification 

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Gas offloading arm

   t   r   o    P   s   a    G   a   c

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throughput (closed-loop mode) Provides seasonal service during Argentine winter 

Short development time and low cost 

  n   a    l    B   a    í    h   a    B

Utilizes ship-to-ship LNG transfer with continuous natural gas send out Capable of 400 mmscfd

Final investment decision to inservice in less than 6 months Fixed facilities cost quick disconnect of hoses

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in emergency situations Remote operation

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‘Dry Break’

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Extensive test in cryogenic conditions for STS type approval

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 Actuator reinforced for cryogenic operations

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LNG STS Transfer  ‘Dry--Break’ Emergency Release Coupling ‘Dry

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LNG STS Transfer  Emergency Release Coupling

• BV Class Approved • Function Tested w/ 1” ‘Hard’ Ice • Liquid Nitrogen @ 10 bar 

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LNG STS Transfer  ERC Actuated

0.8 Liter Volume Between The Disks

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LNG STS Transfer  Hose Brake System

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LNG STS Transfer  Equipment, Controls and Safety •

Emergency Shut Down (ESD)  

Pneumatic ESD systems connecting LNGC with EBRV Electric and Fiber Optic umbilical available

•  Additional Water Curtain System at both manifold areas  

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Protect release ships’ trunk deck / cargo tank covers from accidental LNG Includes ‘water bath’ on main deck under manifold area

Emergency Release Couplings   

KLAW quick release couplings offer quick disconnect of hoses in emergency situations Remote operation ‘Dry Break’

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LNG STS Transfer  Fender Arrangement

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LNG STS Transfer  Approach Maneuver 

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LNG STS Transfer  Coming Alongside

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LNG STS TRANSFER Mooring Operation

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LNG STS Transfer  Cargo Hoses Rigged

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LNG STS Transfer  Gear Placement

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LNG STS Transfer  Hose Connection

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LNG STS Transfer  Line Cooldown

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LNG STS Transfer  Projected Time Line • Rigging Fenders •  Approach Maneuver • Mooring • Pre-Transfer Meeting / Gauging

1 hr  1 hr  2 hrs 1 hr  

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C eo ctoH Lio nn enC ldo oswens ESD / ERC Tests Cargo Transfer (130,000 m3 @ 5000 m3/hr) Hose Drain / Purge / Disconnect

2 1-h ½rshr   ½ hr   26 hrs 4 hrs

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U inegc/oV Fennmdoeor rR veersysel Separation Total Projected Time

1 1h hrr   41 hrs

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1st Commercial STS Transfer  Scapa Flow – Flow – 8-9 February 2007

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LNG STS Transfer  Site Specific Assessments •

Simulator training with Scapa Flow Pilots and EBRV senior staff at South Shields Technical College (UK)

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Ballast Water Management issues regarding environmental preservation

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Waterway management risk assesment with Orkney Harbor Authority,

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Scotish National Heritage and BMT-Isis Simulator training with Bahia Blanca Pilots and EBRV senior staff at SiPort

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Risk assessment of non-standard conditions prior to STS operation 

Primarily for weather considerations and forecasted forecas ted conditions

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LNG STS Transfer  Full Rate Cargo Transfer (5,950 m3 /hr)

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LNG STS Transfer  Routine Inspections

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LNG STS Transfer  Drain & Purge Hoses

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LNG STS Transfer  CTMS

EXCALIBUR

EXCELSIOR

Opening Volume (m3)

132,379

1,197

Volume Transferred (m3)

132,296

131,830

Closing Volume (m3)

83

133,027

BOG Consumed (m3)

215

273

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LNG STS Transfer  Statistics

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LNG STS Transfer