Jansz-Io compression project to proceed

Chevron (operator) and the Gorgon joint venture partners* report they are to proceed with the $4bn Jansz-Io compression (J-IC) project offshore Australia.

According to Nigel Hearne, Chevron Eurasia Pacific Exploration and Production President, the J-IC project represents Chevron’s ‘most significant capital investment in Australia since sanctioning of the Gorgon Stage 2 project in 2018’.

Using subsea compression technology, the project will help maintain gas supply from the Jansz-Io field to the three existing LNG trains and domestic gas plant on Barrow Island. This will maintain ‘an important source of clean-burning natural gas to customers that will enable energy transition in countries across the Asia Pacific region’, says Hearne.

A modification of the existing Gorgon development, J-IC will involve the construction and installation of a 27,000-tonne normally unattended floating field control station (FCS), approximately 6,500 tonnes of subsea compression infrastructure and a 135 km submarine power cable linked to Barrow Island. It is estimated that construction and installation activities will take approximately five years to complete.

J-IC follows the Gorgon Stage 2 project, which is nearing completion of the installation phase, to supply gas to the Gorgon plant from four new Jansz-Io and seven new Gorgon wells.

*The Chevron-operated Gorgon project is a joint venture between the Australian subsidiaries of Chevron (47.333%), ExxonMobil (25%), Shell (25%), Osaka Gas (1.25%), Tokyo Gas (1%) and JERA (0.417%).

J-IC subsea compression station
Photo: BusinessWire