Prelude FLNG is the world's largest floating liquefied natural gas platform as well as the largest offshore facility ever constructed. The Prelude was built by the Technip / Samsung Consortium (TSC) in South Korea for a joint venture between Royal Dutch Shell, KOGAS, and Inpex. It is 488 metres (1,601 ft) long, 74 metres (243 ft) wide, and made with more than 260,000 tonnes of steel.
The vessel will displace around 660,000 tonnes when fully loaded, more than five times the displacement of a Nimitz-class aircraft carrier.
The Prelude FLNG system will be used in the Prelude and Concerto gas fields in the Browse LNG Basin, 200 kilometres (120 mi) off the coast of Australia; drilling and gas production are both expected to begin in 2016. It has a planned life expectancy of 25 years.
The Prelude and Concerto fields are expected to produce 5.3 million tonnes of liquid and condensate per year; this includes 3.6 million tonnes of liquified natural gas, 1.3 million tonnes of condensate, and 400,000 tonnes of liquified petroleum gas.
According to en.wikipedia