VIDEO: Installation of offshore flowlines at Ichthys field complete


Japan’s oil and gas exploration and production company Inpex announced it has completed the installation of 140 kilometres of rigid subsea flowlines for its Ichthys LNG project in the Browse Basin, approximately 220 kilometres offshore Australia.

The company said this was the final infield pipelay and a significant achievement in the project’s offshore installation campaign.

The infield flowlines were installed in water depths up to 275 metres to carry reservoir fluids from 20 subsea wells to the project’s two massive floating processing facilities–a central processing facility and floating production storage and offloading facility.

McDermott, the main contractor for the subsea umbilical, riser, flowline project by Inpex, contracted Heerema Marine Contractors in Australia in February 2012 to transport and install infield flowlines, subsea structures and moorings for the Inpex Ichthys LNG project. Heerema used its Deep Water Construction Vessel ‘Aegir’ to carry out the work.

The Ichthys LNG Project is a Joint Venture between Inpex, the operator, major partner Total, CPC Corporation Taiwan and the Australian subsidiaries of Tokyo Gas, Osaka Gas, Kansai Electric Power, Chubu Electric Power and Toho Gas.

A Final Investment Decision for the Ichthys LNG project was reached in 2012 and first production is scheduled to start towards the end of September 2017.

The project is expected to produce 8.9 million tonnes of LNG and 1.6 million tonnes of LPG per annum, along with more than 100,000 barrels of condensate per day at peak.

Gas and condensate from the Ichthys Field will be exported to onshore facilities for processing near Darwin via an 889 km pipeline. According to Inpex, most of the condensate will be directly shipped to global markets from a floating production, storage and offloading facility permanently moored near the Ichthys Field in the Browse Basin.

Offshore Energy Today Staff

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