The natural gas demand has been increased and forecasted to be 1.5 times higher in 20 years. In order to comply with market needs, DSME (Daewoo Shipbuilding & Marine Engineering) has developed a LNG (Liquefied Natural Gas) FPSO (Floating, Production, Storage and Off-loading) to monetize mid-scale standard gas fields.

Since the Fukushima nuclear accident happened in Japan in last March 2011, the world's attention and demand on LNG fuel has been increasing more and more. In this situation, DSME has had the opportunity to produce the world's first FLNG facility combining LNG carrier and FPSO.

The aim of this paper is introducing of the detail structural design and engineering for structure discipline, also, the construction process and sequence of FLNG (Floating Liquefied Natural Gas). Characteristics of FLNG, DSME's outstanding features and comparison of conventional LNG and FLNG are briefly explained, too.

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