McDermott is delivering an engineering, procurement, construction and installation (EPCI) solution for one of the world’s largest subsea gas field developments. Located about 220 km offshore Western Australia, in an average water depth of 250 m, lies the INPEX Ichthys field. This development requires the execution of one of the world’s largest SURF EPCI contracts awarded to date.
Gas from five drill centers spread across the 800 km2 field is routed through 140km of infield pipeline and directed towards one of the world’s largest and most complex flexible riser systems. The Ichthys LNG Project requires a solution developed around unique and challenging soils in seismically active zones, a 40-year design life and 10,000-year cyclone survival criteria. The Sour Service, High Pressure (371 bar), High Temperature (150°C) conditions and hook-up to the world’s largest semi-submersible have required a number of firsts in engineering, procurement, construction and installation.
Services: Engineering, procurement, construction, installation and pre-commissioning
Facilities: The 8,500 MT Riser Support Structure was delivered in the fourth quarter of 2014, representing 25% of the 26,000 MT of subsea structures McDermott is fabricating for the project.
Location: Northern Browse Basin. Western Australia
Water Depth: 250 meters
Yard: Batam Island, Indonesia
Vessels: North Ocean 102, Emerald Sea, Intermac 650
Data Sheet: Metric (PDF)