feature

gorgon graduates
to stage two

Chevron Australia and its joint venture participants announced a decision to proceed with future offshore development at the Chevron-led Gorgon natural gas facility off the northwest coast of Western Australia.

Chevron Australia managing director Nigel Hearne said Gorgon stage two is part of the original development plan for Gorgon and includes the expansion of the subsea gas gathering network required to maintain long-term natural gas supply to the 15.6 million tonne per annum (MTPA) LNG plant and domestic gas plant on Barrow Island.

Gorgon subsea structure being lowered to the ocean floor

Control umbilical provides power and communication to the Gorgon subsea facilities

Left: Some subsea structures weigh more than 1000 metric tons and were installed on the ocean floor using a special lowering system. Right: A control umbilical provides power and communication to the Gorgon subsea facilities.

“Our world-class natural gas facilities have transformed Chevron into a leading and reliable supplier of cleaner-burning natural gas to customers in the region. Through ongoing collaboration, we need to invest in both the infrastructure and the local skills and capability required to maintain our long-term energy position and contribute to the jobs of the future,” said Hearne.

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Gorgon’s existing subsea gas gathering network consists of 20 subsea structures, 63 spools, about 500 miles of pipeline and associated infrastructure.

This planned future development phase at the Gorgon natural gas facility involves new wells in the Gorgon and Jansz-Io fields, and accompanying offshore production pipelines and subsea structures. The development fits within Chevron’s previously announced annual investment range of $18 to 20 billion through 2020.

“Benefits are expected to flow through to Australian industry, arising from local project management, drilling and completion activities and subsea infrastructure installation,” Hearne added.

Published: July 2018