Exxon Mobil subsidiary Esso Australia Pty Ltd. awarded integrated subsea engineering, procurement, construction, installation and commissioning (EPCIC) contracts to Subsea Integration Alliance, which comprises OneSubsea, a Schlumberger company, and Subsea 7.
The work scope includes engineering, procurement, construction and installation of two production wells in a water depth of approximately 45m that will be tied-back to the Longford onshore gas plants. Project management and engineering will be provided by OneSubsea and Subsea 7 from local offices in Perth and Melbourne, Australia. Offshore installation activities are scheduled for 2020.
The Subsea 7 scope includes project management, engineering, procurement, construction and installation of the two production wells and a single electrohydraulic umbilical from the Barracouta Platform to the West Barracouta drill center.
The OneSubsea scope includes the provision of two vertical monobore on-wellhead production trees, wellheads, controls and installation and commissioning services.
Subsea Integration Alliance said that the award represents its first integrated subsea project in Australia combining OneSubsea and Subsea 7 expertise in subsea production systems (SPS) and subsea umbilical, riser and flowline (SURF) systems.
“By adopting our supplier-led approach, Esso Australia will leverage our technical specifications as well as standardized configurable products that will allow for shorter lead times, overall lower system costs, and accelerated first gas production. Further, Subsea Integration Alliance’s execution strategy will enable Esso to achieve cost and schedule certainty and reduce interface risk,” said Don Sweet, President, OneSubsea, Schlumberger.
Andy Woolgar, Subsea 7 Vice President for Australia & New Zealand, said, “This award builds on our relationship with Esso and on the reputation of Subsea Integration Alliance to offer clients a quality-focused project execution, with optimized production and improved cost efficiency. By bringing together complementary technology and expertise, we are able to provide our clients with greater certainty of return on investment and enhanced asset profit potential. This project serves as a step-change of how we work in the region and demonstrates our ability to deliver superior value to the industry.”
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