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Side profile of Prelude FLNG on station north west coast of Australia

Prelude FLNG Marine Terminal

Prelude is a floating liquefied natural gas facility (producing LNG, LPG and condensate) located 155 nautical miles off the North West coast of Australia. The Prelude facility weather vanes 360 degrees around a turret, moored in 248 meters of water.

The Prelude facility operates on Australian Western Standard Time (AWST; UTC+08:00). Western Australia does not observe day light saving time / summer time.

In position its coordinates are: Latitude 13° 47.2´S Longitude 123° 19.0´ E.

The radius of the Safety Zone around the Prelude FLNG facility is 1500m, as measured from the turret mooring outwards, and around 360 degrees.

The Prelude facility weather vanes 360 degrees around a turret, moored in 248 meters of water. Three stern thrusters enable Prelude to maintain an optimum heading that will facilitate offtake operations within the design limits of the facility and associated cargo transfer equipment.

It is fitted with the necessary equipment for exporting LNG/LPG via side by side mooring and loading arms and Condensate via a tandem mooring and floating hose system. It is moored to the sea bed via 16 anchor piles and chains whilst being directly connected to wells that access the gas reservoir via flexible risers routed through the turret. All reservoir, subsea control, processing, storage and loading is operated and controlled from Prelude.

Regulations

Vessel Clearance

Mooring Line, Nylon Stretcher, Dyneema Pennant, Chafe Protection and Mooring Equipment Condition Log (XLSX, 41 kB)

Prelude Vessel Clearance Documentation – Condensate – Uploaded September 2023 (DOCX, 23 kB)

Prelude Vessel Clearance Documentation – LNG – Uploaded September 2023 (DOCX, 35 kB)

Prelude Vessel Clearance Documentation – LPG – Uploaded September 2023 (DOCX, 21 kB)

Vessel Nomination and Clearance Documentation Form

LNG

Prelude FLNG Terminal Information Book LNG Rev 17 May 2024 (PDF, 4 MB)

Compatibility Checklist – LNG – Rev 6 – Uploaded March 2022 (XLSX, 4 MB)

Guidance On Conducting Sloshing Risk Assessment For Operators Of Membrane LNG Carriers (PDF, 214 kB)

LNG SDS_AU_EN (PDF, 347 kB)

LPG

Prelude FNG Terminal Information Book – LPG Rev 16 (PDF, 6 MB)

Compatibility Checklist – LPG – Rev 5 – Uploaded April 2025 (XLSX, 1 MB)


Butane SDS_AU_EN (PDF, 338 kB)

Propane SDS AU (PDF, 375 kB)

Condensate

Prelude FNG Terminal Information Book – Condensate Rev 13 (PDF, 4 MB)

Compatibility Checklist – Condensate – Rev 6 – Uploaded March 2022


Natural Gas Condensates_SDS v1.3 050423 (PDF, 447 kB)

Questionnaires

Sister Class Vessel Questionnaire - Rev 4 - Uploaded October 2020 (DOCX, 48 kB)

Repeat call or Pre-cleared Vessel Questionnaire - Rev 4 - Uploaded October 2020 (DOCX, 47 kB)

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