LNG

Australian LNG operator Woodside has awarded a European-US grouping comprising units of Europe’s Subsea 7 and Houston-based Schlumberger, a significant contract for the subsea development of the Scarborough gas field to provide feed gas for the Pluto LNG plant expansion.

The Scarborough field is located about 380-kilometres offshore northwest Australia and is one of just two such feed-gas projects under way in Australia, with the other being the Barossa field to extend the lifespan of Darwin LNG.

Subsea 7 said the project work scope covered the engineering, procurement, construction, and installation (EPCI) of subsea pipelines and production systems.

The development will include 45 kilometres of rigid flowlines, six flexible flowline risers, 42 kilometres of umbilicals and eight trees, as well as associated subsea equipment, in water depths of about 950 metres.

The Subsea Integration Alliance team established during the initial front-end engineering and design phase, awarded in January 2019, will now transition into the full EPCI phase.

Project management and engineering will take place in Perth, Australia, with support from Subsea 7’s Global Project Centre’s offices in Malaysia, UK and France and various OneSubsea offices.

Offshore activities are targeted to take place from 2023 to 2025 using Subsea 7's reel-lay and flex-lay vessels.

Joint effort

“This award is the result of a strong and collaborative early engagement process with Woodside, working with a high level of transparency and cooperation during the pre-tender and FEED phases,” said Olivier Blaringhem, Chief Executive of the Subsea Integration Alliance.

“It demonstrates the potential value of Subsea Integration Alliance and its optimised and integrated offering capacity. We look forward to working with Woodside to deliver the project successfully and safely while maximising the client’s production objectives,” stated Blaringhem.

David Bertin, Vice President for Subsea 7 Global Projects Centre and Asia Pacific, said the group was proud to be awarded this contract by Woodside.

“This builds on our long-standing relationship with the client and our successful track record of projects executed offshore Australia,” explained Bertin.

“Our local office in Perth will be supported by Subsea 7’s Global Projects Centre, underlining the strength and breadth of our project management capabilities and the capacity to deliver complex projects,” added Bertin.

Subsea noted that it defined a large contract as being between US$300 million and US$500M and the value range refers to Subsea 7’s share of the contract.

The Subsea Integration Alliance is a non-incorporated strategic global alliance between Subsea 7 and OneSubsea, the subsea technologies, production and processing systems division of oil and gas services company Schlumberger.

The alliance brings together field development planning, project delivery and total lifecycle solutions under an extensive technology and services portfolio.

US engineering companies McDermott International and Baker Hughes-GE said they were awarded subsea contracts to provide field development services for the feed-gas needs of the Ichthys LNG export plant in the Northern Territory of Australia.