In 2018 huge floating liquefied natural gas (FLNG) structure, also called Prelude of Shell will begin its job of extracting and processing gas at sea next year. The construction of this FLNG structure started in 2012 and was completed in July Samsung’s Heavy Industries in South Korea.
According to a report, the 488-meter-long facility is now stationed at its first location, Shell’s Prelude Gas Field, around 200 kilometers north of the Western Australian coast. Starting from below the seabed it will pump the gas to the floating platform, where it is then cooled. After that, LGN ships will pull up side by side and fill their tanks with liquefied gas which has been cooled to -162 degrees Celsius.
The world’s largest vessel has the capacity of displacing as much water as five aircraft carriers.
Even though it looks like a shop, the Prelude vessel needs to be pulled to its destinations as it is not the strictest sense a boat.
This technology produces and offloads gas to huge carriers so there is no need for long pipelines to land-based LNG processing plants.
However, due to the U.S. shale technology’s increase in cheap gas, there are some questions arrived about the current value of an expensive off-shore facility.
The world’s longest ship will remain at the Prelude field for as long as 25 years, according to the estimation by Shell, and their joint venture partners KOGAS and Impex. After that, it might be pulled to another offshore field.
The company says it will harvest at least 5.3 million tons per annum (mtpa) of liquids — 3.6 mtpa of LNG, 0.4 mtpa of liquefied petroleum gas and 1.3 mtpa of condensate. It has also added that the amount of gas will be more than the annual needs of Hong Kong.
Shell has never revealed the vessel’s pricing details but a report from industry analyst’s unveiled that its cost would sit between $10.8 billion and $12.6 billion.