Inpex completes Ichthys subsea installation

Jan. 25, 2024
Inpex Operations Australia P/L completed installation of subsea infrastructure at Ichthys gas field in Browse basin about 220 km offshore Western Australia in 250 m of water.

Inpex Operations Australia P/L has advanced work to expand the existing offshore infrastructure at Ichthys gas field in Browse basin offshore Australia with the compelted installation of certain subsea infrastructure. The field lies about 220 km offshore Western Australia in 250 m of water.

The subsea infrastructure, awarded to a McDermott International and Baker Hughes consortium in 2019, included engineering, procurement, construction, and installation (EPCI) of umbilicals, risers, and flowlines (URF), and a subsea production system comprised of a new 7-in. vertical Christmas tree (VXT) system to form a subsea well gathering system (GS4) tied back to the existing Ichthys Explorer central processing platform. The work scope also included an in-fill URF EPCI involving the development of new subsea wells tied in to the existing gathering systems.

Ichthys field has an initial estimated reserve of 13 tcf of gas and over 500 million bbl of condensate. The field came on stream in 2018. Gas is piped 890 km from the field to an LNG plant at Bladen Point in Darwin. Condensate is transferred to an FPSO at the field and sent to market via offtake tankers (OGJ Online, Feb. 14, 2022).