Once onboard, the LNG made its way – in reverse order – through process equipment and pipework to huge LNG tanks in the hull of the facility. Since the Prelude is anchored, the tanks have been designed to withstand the ‘sloshing’ of the product that could happen due to the movement of the facility during adverse weather.
Shell says that with the import, four of Prelude’s six 39,000 m3 cryogenic LNG tanks are now full.
With gas onboard, Prelude’s utilities can now switch to run on gas rather than diesel.
VP Prelude David Bird expressed exciting in reaching the milestone, but remains focused on the end goal. “It’s important we take a moment to celebrate and recognize this achievement,” said David. “It’s equally important we don’t lose sight of the end goal – the safe and reliable start-up of our incredible asset, Prelude, and the delivery of gas to our customers.”
With the facility now ‘live’, Prelude Project Director Didrik Reymert stressed the importance of safety on board.
“The risk profile of the facility has changed fundamentally and this has a great impact on how we work,” Reymert said. “Now, more than ever, we must maintain our unrelenting focus on the safety of our people and our environment.”
“Introducing gas onto Prelude is an important step towards start-up but there is a lot of work to do before we get there,” he added.
The next step will be to test and ready the LNG plant on board Prelude in preparation for opening the wells. This will be followed by a period called start-up, ramp-up, after which LNG will be produced.
The 600,000 metric ton Prelude FLNG is the largest floating structure ever built. It will be permanently moored about 295 miles off the coast of Western Australia for a period of 20 to 25 years, and at its, it will produce and export approximately 3.6 million metric tons of liquefied natural gas per year from the nearby Prelude field.
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