Video: Prelude FLNG’s Subsea System Takes Shape Off Western Australia

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August 2, 2016

With construction of the Prelude FLNG facility nearing completion at the Samsung Heavy Industries (SHI) shipyard in Geoje, South Korea, subsea installation crews have been busy working offshore Western Australia to prepare the mooring site for the arrival of the massive facility.

Located about 300 miles northeast of Broome, Western Australia, Prelude FLNG will moored and connected to vast subsea network of Christmas trees, manifolds and flow lines, all connected to giant anchor piles, and used to control the flow of gas.

At 488m (1,600 feet) long, 74m (240 feet) wide, and weighing some 600,000 tonnes, the Prelude FLNG will be largest floating offshore facility in the world. It will remain permanently moored at the location for about 20-25 years, so it has been designed to withstand even the most powerful cyclones. 

Once operational, the Prelude FLNG facility will produce at least 5.3 million tonnes (mtpa) per annum of liquids: 3.6 mtpa of LNG, 1.3 mtpa of condensate (equivalent to 35,000 bbl/d) and 0.4 mtpa of liquefied petroleum gas (LPG).


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