GE starts Prelude riser assembly

Offshore staff

NEWCASTLE-UPON-TYNE, UKGE Oil & Gas has started manufacturing four high-pressure/high-temperature (HP/HT) dynamic flexible risers for Shell’s Prelude floating liquefied natural gas (FLNG) vessel, due to operate 250 km (155 mi) offshore Western Australia.

GE has worked with Shell on the project since 2011, following an initial order for turbomachinery equipment.

The companies have since collaborated on the subsea flexibles scope to ensure that the raw materials and proposed end-product meet quality and technical requirements. This led to Shell Australia awarding GE a contract in April 2014.

GE will complete manufacture of the flexible risers at its Newcastle plant, where it has invested more than $21 million to expand the production carousel capacity; enhance manufacturing capabilities; and develop the site to accommodate larger diameter risers, which can be produced and delivered in optimum single lengths.

The risers are designed to remain connected and survive a 1-in-10,000-year cyclonic event. They will be packaged onto purpose-built large-diameter reels and transported more than 11,000 km (6,835 mi) to Southeast Asia in readiness for subsea installation.

GE’s project teams for Prelude are based in Perth, Australia and Newcastle for the subsea equipment scope and in Florence, Italy for the manufacture and supply of two steam turbine-driven compressors for the liquefaction process.


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