Woodside has awarded a major contract to the Subsea Integration Alliance (SIA) of Subsea 7 and OneSubsea for work on its huge Scarborough gas project offshore Australia, with Toronto-listed Shawcor also landing a prestigious order.

Separately, Oslo-listed Subsea 7 scored a contract success on Aker BP's Hanz development offshore Norway.

For Scarborough, Subsea 7 said its share of the SIA contract is worth between $300 million and $500 million.

The workscope covers the engineering, procurement, construction, and installation 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 approximately 950 metres.

SIA has been carrying out front-end engineering and design studies since January 2019 and will now transition into the full EPCI phase.

Project management and engineering will take place in Perth, Australia, with support from Subsea 7’s offices in Malaysia, the 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.

SIA chief executive Olivier Blaringhem said: “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."

"It demonstrates the potential value of Subsea Integration Alliance and its optimised and integrated offering capacity."

Subsea 7’s head of Asia-Pacific David Bertin said this contract “builds on our long-standing relationship with the client and our successful track record of projects executed offshore Australia”.

For its part, Shawcor said that it has received a formal notice to proceed from Saipem to begin pipe coating activities for Scarborough under a contract worth more than C$100 million (US$78 million).

In February 2020, Saipem contracted Shawcor to provide internal, anti-corrosion and concrete weight coating services for the gas export line that will run between Scarbourgh and an onshore liquefied natural gas facility.

Shawcor’s Kabil facility in Indonesia is due to start deliveries in the fourth quarter of 2022, with delivery continuing into 2024.

Scarborough lies in the Carnarvon basin, approximately 375 kilometres west-north-west of the Burrup Peninsula in Western Australia.

The field will be developed through new offshore facilities connected by a 430-kilometre pipeline to a proposed second LNG train at the existing Pluto LNG onshore facility.

Scarborough's reservoir contains only 0.1% carbon dioxide, and together with the adoption of highly efficient and proven technology in design at Pluto Train 2, the development has been designed to be among the lowest-carbon intensity LNG sources globally for delivery into North Asia.

The first cargo is expected to be delivered in 2026.

Meanwhile, in Norway, Subsea 7 has advised it has landed a contract worth $50 million to $150 million for subsea tie-back work on the Hanz project in the North Sea.

The contract scope includes engineering, procurement, construction and installation of gas lift and production pipelines, and associated subsea infrastructure, using vessels from Subsea 7’s fleet.

The production pipeline is a pipe-in-pipe design.

This subsea hardware will link Hanz with the Ivar Aasen platform about 15 kilometres away.

Project management and engineering will start immediately at Subsea 7’s offices in Stavanger, while pipeline fabrication will take place at Subsea 7’s spool base at Vigra, Norway.

Offshore operations are expected to be carried out in 2023.

Monica Bjorkmann, head of Subsea 7 in Norway said: “This award continues our long-standing collaboration with Aker BP, through the Aker BP Subsea Alliance."

The Aker BP Subsea Alliance is a partnership between Aker BP, Subsea 7 and Aker Solutions.

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