Nexans, SPIE secure gigs for Jansz-Io Compression project

Nexans has secured a turnkey contract to supply and install a deep-water high voltage dynamic cable solution for the Jansz-Io Compression (J-IC) project offshore Western Australia.

Nexans will deploy a power and communication transmission system from the shore to the offshore compression facilities, which will sit at a water depth of 1,400 meters.

A 145kV deep-water dynamic cable will provide power from shore to an offshore floating facility that will subsequently power and control the subsea compression.

Cable-laying vessel Nexans Aurora will be used to install the cables. The 135-kilometer long high voltage subsea power cable will also be manufactured, tested and installed in one continuous length.

In addition, SPIE Oil & Gas Services has been awarded a contract from Chevron Australia to provide Process Automation Systems (PAS) integration services for the subsea gas compression system for the Jansz-Io field.

The services cover all systems integration engineering associated with the subsea gas compression system and field control station along with brownfield modifications required on the existing Gorgon facilities.

According to SPIE, work has already commenced on the project.

The Jansz-Io gas field, located some 200 kilometers offshore the north-western coast of Western Australia, was first discovered in April 2000. It is a part of the Chevron-operated Gorgon project, said to be one of the world’s largest natural gas developments. 

The Gorgon Project is a joint venture between the Australian subsidiaries of Chevron (47.3%), ExxonMobil (25%), Shell (25%), Osaka Gas (1.25%), Tokyo Gas (1%) and JERA (0.417%).