Barossa Project - Transportation and Installation of Subsea Umbilicals Risers and Flowlines (SURF)

Project at a glance
Contact Details
About Subsea 7
Subsea 7 is a global leader in the delivery of offshore projects and services for the evolving energy industry. The company creates sustainable value by being the industry's partner and employer of choice to deliver the efficient offshore solutions the world needs. Project management, engineering and construction expertise are provided across the full field lifecycle. These services are delivered to clients in the Oil & Gas and Renewables sectors.
About the project
Barossa is an offshore gas and light condensate project being progressed by the Barossa Joint Venture comprising Santos NA Barossa Pty Ltd (Santos) as Operator, Santos Offshore Pty Ltd and SK E&S Australia Pty Ltd.
As part of the Barossa Offshore Project, Santos has selected Subsea 7 as the contractor to provide the Transportation and Installation of Subsea Umbilicals Risers and Flowlines (SURF).
Subsea 7's scope of work includes the following:
- Project management and engineering to complete the following works;
- Procurement of 14" and 6" linepipe and bends for flowlines, Flowline End Terminations (FLETs) and tie-in spools;
- Coating of 14" and 6" linepipe and bends for flowlines, FLETs and tie-in spools;
- Design and procurement of concrete mattresses and scour mitigation systems;
- Design, fabrication, transportation and installation of FLETs, Displacement Initiators (DIs) and Riser Tether Bases (RTBs);
- Fabrication at onshore spool base, transportation and reel-lay installation of flowlines;
- Fabrication, transportation and installation of export spools, tie-in spools and well jumpers;
- Transportation and installation of all Client Provided Items (CPI) - manifolds, risers, umbilicals, flexible jumpers and flying leads;
- Pre-commissioning of subsea system.
Procurement and subcontracting
Subsea 7 shall execute the project by sourcing the best commercial and technically delivered solution to satisfy the company's business needs without compromising safety, quality or the environment.
Subsea 7 is committed to supporting the Santos' Barossa Australian Industry Participation (AIP) Plan to ensure all suppliers are given a Full, Fair and Reasonable Opportunity to participate in the development of the Barossa Project. Subsea 7 will comply with all the requirements as stated in the Barossa AIP Plan and the Australian Jobs Act 2013 throughout the project.
Pre-Qualification Process
All Suppliers must undergo a pre-qualification process. Depending on the nature and complexity of supply, the pre-qualification process may involve an assessment of a Supplier's financial standing, technical capability, Quality, and Health, Safety & Environmental track record.
From mid-2021 onwards, all pre-qualifications will be conducted online via SAP Ariba. In addition, potential suppliers shall be provided with an invitation to complete a Supplier Pre-Qualification Questionnaire subsequent to initial screenings.
Please be advised that when submitting an EOI, all potential suppliers must provide a completed "Initial Screening Questionnaire" for EACH work package. This will assist Subsea 7 in identifying suitable potential suppliers more efficiently prior to proceeding with pre-qualification.
Subsea 7 Code of Conduct for suppliers
Subsea 7 is committed to operating honestly and with integrity, additionally complying with all applicable laws in all jurisdictions in which they operate. Subsea 7 requires all Suppliers to do the same. Expectations are outlined in the "Our Code of Conduct for Suppliers", which can be found within the Project Documents section.
Contact details:
Further details on the Project and associated opportunities can be found at: BarossaOffshore.icn.org.au
Barossa is an offshore gas and light condensate project being progressed by the Barossa Joint Venture comprising Santos Offshore Pty Ltd (Santos) as Operator and SK E&S Australia Pty Ltd.
The Dorado oil field contains 140 mmbbls (2C, 100%) of oil. It is located in the Bedout basin, approximately 150km north of Port Hedland in Petroleum permit WA-437-P. The project will be developed jointly in line with the equity split of Santos Offshore Pty Ltd 80% and Carnarvon Petroleum Pty Ltd 20%.
The offshore resource would be developed with up to 16 platform wells drilled by a jack-up drilling rig. These would be connected back to an adjacent Floating Production, Storage and Offloading facility (FPSO) moored in 95 metres of water above the Dorado field.
The proposed FPSO unit will have processing facilities to stabilise and store the oil and compress and re-inject gas to the reservoir.
As part of the Barossa development, Allseas will be responsible for the installation of the offshore rigid gas export pipeline and associated end structures (PLETs), as well as installation of mattresses for span correction, buckle initiation and pipeline crossing.
Barossa is an offshore gas and light condensate project being progressed by the Barossa Joint Venture comprising Santos NA Barossa Pty Ltd (Santos) as Operator, Santos Offshore Pty Ltd and SK E&S Australia Pty Ltd.
As part of the Barossa Offshore Project, Santos has selected BWO as the contractor to provide the FPSO Services.
The Darwin LNG plant (DLNG) is a single train liquefaction and storage facility located at Wickham Point on Darwin Harbour, Northern Territory, Australia. DLNG is currently receiving gas from the Bayu-Undan field in the Timor Sea and converts it into LNG. DLNG was commissioned in 2006 and has a design life to 2027. Bayu-Undan produced its first gas in 2004 and is now approaching the end of field life.
The DLNG Life Extension Project (the Project) seeks to utilise the shutdown window created by Bayu-Undan end of life to prepare the DLNG facility for backfill from the Barossa field, by undertaking several brownfield work packages.
A proudly Australian Company, Santos is the biggest producer of domestic gas in Western Australia and has been operating in the west since its first oshore discovery, in the Carnarvon Basin, in the early 1980s.
Santos is a global low-cost producer of oil and gas committed to ever-cleaner energy and fuels production with operations across Australia, Papua New Guinea, Timor-Leste and North America.
The Bayu-Undan Carbon Capture and Storage (CCS) Project targets the capture of up to 10 Mtpa of CO2 at a Darwin hub - initially from the Darwin LNG facility (DLNG), with potential future expansion to proximal 3rd party. Captured CO2 will be transported to, and stored in, the offshore Bayu-Undan reservoir (in Timor Leste waters).
Allseas Group S.A. is a global leader in offshore pipeline installation and subsea construction. The company employs over 2,000 people worldwide and operates a versatile fleet of six specialised pipelay and support vessels, designed and developed in-house.