Accessibility Links

Engineering feat of the Month: Shell Prelude FLNG



The largest FLNG and the largest offshore facility ever built, Shell's colossal Prelude is an astonishing feat of engineering. This month we're celebrating the ongoing operations and incredible build of this already iconic craft.


The Browse Basin is a large area of undeveloped gas resources off the coast of north-western Australia. At its deepest it sits up to 4000 meters below the water level, and was discovered in 2000 as being an as yet untapped area of natural fuel. Since 2011, Shell have had a 67.5% stake in the region.

Floating potential

Work is currently underway on the construction of a floating gas facility along with Shell’s venture partners, INPEX (17.5%), KOGAS (10%) and CPC Corporation (5%). The aim of this facility is to harvest at least 5.3 million tonnes of liquid gas a year from the Browse Basin and make the most of this huge gas supply. For such a grand undertaking, the facility had to be right.

That meant making it safe, secure and stable, allowing it to continuously deliver a reliable supply of gas while ensuring the safety of its over 5,000 workers. It also meant making it big, very big.

A huge task

In 2013 the largest steel hull ever was constructed, weighing in at a staggering 200,000 tonnes. A Boeing 747 weighs a tiny 450 tonnes in comparison. It took nine tug boats to tow it from the dry harbour in which it was constructed, and 32 huge heavy duty mooring ropes to secure it in place just off the coast of South Korea where further work could take place. Additional modules, many of which weigh as much as a typical hull alone, are now being added, making this a goliath of state of the art construction.

When the Prelude FLNG turret is completed and installed, it will be the largest gas turret in the world at almost 100 meters high. You’ll be able to see it from miles around, and the work that takes place there will have an impact all over the world.


The long way home

Once construction is finally finished, perhaps the biggest task of all will be moving the facility along its 475-kilometre journey to its final home offshore Western Australia. There it will be moored, hooked up to the undersea network and begin production for the next 25 years. It’s a big project, and it will be delivering even bigger results.

LNG is playing an increasingly important role in the world’s energy mix. Shell’s enormous investment in Prelude FLNG is clear evidence of this. If you’re looking to power up your career in Oil & Gas, then LNG offers some breakout opportunities.

Fircroft Australia is working with some of the biggest LNG projects in the Australasia region, so act now and take the next steps to future-proof your career.


Recent Comments
Glad to be part of Shell Prelude Project for three years
John Dennis, 06 December 2017
Massive. Has to be seen to appreciate. Sulzer Leeds manufactured & installed various different pumps & generators for this project.
Derek McGillivray, 08 April 2020
Turnkey Catering Contract - Onshore & Offshore
nelson samson, 09 April 2020
I'm ready crane operator stage 3 offshore
Maraoui Fathi , 16 April 2020
Add new comment
By commenting on this blog you're agreeing to our terms of use

Comments left should relate to the subject of the above blog. Unfortunately job applications cannot be accepted here.

For job enquiries and applications please use our job search and for technical or account queries please contact us.
Engineering feat of the Month: Shell Prelude FLNG - Time to read 3 min
Share this article


Back to Top

By clicking "Save" you consent to
receiving matching jobs based on the
job/page you are viewing by email from
Fircroft, as detailed in our privacy policy
Fircroft would like to keep you up to date with our current vacancies and latest company updates via email. Occasionally Fircrofts marketing may contain 3rd party or affiliate information, however we will not share your personal data with any 3rd parties without your consent. From time to time, we might contact you to get your views on the service you have received. To help you get the best out of Fircroft, we may personalise them based on your location and how you use
Fircroft would like to keep you up to date with the latest company updates and vacancies via SMS / Text messages
Your consent options above means that Fircroft cannot contact you about any new or alternative career vacancies. If you want Fircroft to only contact you about the role(s) you have applied for please continue, however if you would like to be considered for other positions please allow us to contact you by changing one or more of the above consent.