Inpex has announced the successful installation of subsea infrastructure and equipment that would extract gas and condensate from Ichthys Field in Browse Basin, offshore Australia.
The company deployed 49km of umbilicals and flying leads on the final day that completed the complicated subsea network. The network is spread across a 400km2 area of the Ichthys Field, around 220km offshore Western Australia.
Ichthys Project managing director Louis Bon said: “Since October 2014, hundreds of people have worked offshore without any significant safety incidents to install the Ichthys LNG Project’s 133,000t subsea network.
“Carrying out this work more than 200km out to sea in water depths of around 250m involves substantial planning and logistical challenges to manage crew changes and equipment transportation."
This subsea infrastructure installation campaign includes 110m high riser support structure, five manifolds, 139km of flowlines, 49km of umbilicals and flying leads and 2,640t of production and MEG spools.
Works comprised construction of five subsea distribution units and a subsea distribution hub.
The LNG project is now ready for the central processing facility (CPF) and floating production, storage and offloading (FPSO) facilities, which are currently being developed in South Korea.
Following commissioning, FPSO facilities will be brought to the Ichthys Field. These facilities have an operational life of 40 years.
The Ichthys LNG Project will assimilate advanced and biggest offshore facilities in the Western Australia with onshore processing units at Northern Territory, which will be linked by an 890km pipeline.
Image: Ichthys LNG Project’s central processing facility developed in South Korea. Photo: courtesy of Inpex.