DeepOcean Wins Equinor Subsea Package Covering Visund, Johan Castberg and Snorre A

DeepOcean has been awarded a package of subsea contracts by Equinor for work across multiple fields on the Norwegian Continental Shelf, with execution planned for 2027 and 2028. The package covers a SIMOPRO riser replacement installation contract at the Visund field in the North Sea, subsea infrastructure installation for the Isflak satellite tieback to Johan Castberg in the Barents Sea, and an option for riser and umbilical recovery work at the Snorre A subsea field, with water depths across the various locations ranging from 300 to 400 metres.

 

Visund SIMOPRO Riser Replacement

 

At the Visund field, DeepOcean has been awarded a simultaneous marine operation and production installation contract involving the replacement of a gas export riser and an oil export riser. SIMOPRO operations are technically complex because they require marine installation activities to be executed while the offshore facility continues to produce, imposing strict coordination requirements between installation crews and production operations to manage risk and maintain asset integrity throughout the campaign. DeepOcean's scope at Visund will span onshore project management, engineering, fabrication, and procurement, alongside offshore installation activities including survey, dredging, tie-ins, and pre-commissioning. The award follows similar SIMOPRO contracts that Equinor awarded to DeepOcean in September 2025 for riser replacements at Åsgard B and Visund, indicating a continuing and established working relationship in this technically demanding operational category.

 

Isflak Satellite Tieback to Johan Castberg

 

The Barents Sea element of the package involves the first satellite tieback to the Johan Castberg floating production, storage, and offloading unit. The Isflak oil discovery is located approximately 8.5 kilometres from the FPSO, and DeepOcean will install a four-slot template and a manifold module alongside flowlines and a static umbilical, with associated survey, tie-in, and pre-commissioning operations. Satellite tiebacks to existing FPSO infrastructure are commercially attractive because they reduce the capital requirement for developing smaller discoveries, allowing operators to extend the productive life and utilisation of existing floating production assets without committing to standalone infrastructure. For DeepOcean, the Isflak award represents an early position in what is expected to be a broader programme of tieback development around Johan Castberg as additional Barents Sea discoveries are matured.

 

Snorre A Option for Riser and Umbilical Recovery

 

The contract package also includes options for recovery of eight existing risers and umbilicals connecting the underwater production area and the Snorre A production facilities in the North Sea. Riser and umbilical recovery is a growing workscope as legacy infrastructure reaches the end of its operational life, and the inclusion of option provisions within the broader contract package provides flexibility for Equinor to activate additional scope as planning and regulatory requirements are confirmed. For DeepOcean, options of this type are commercially valuable because they provide potential upside to contracted revenue without requiring a separate competitive tender process for each individual scope element.

 

Read more: Davie and Kraken Team Up to Establish Canadian Production of Autonomous Maritime Systems

 

Vessel Deployment and Operational Execution

 

DeepOcean will deploy construction vessels from its chartered subsea fleet across the Visund, Isflak, and Snorre A workscopes. The use of chartered rather than owned tonnage reflects the operating model through which DeepOcean manages its offshore execution capability, accessing high-specification construction vessels on a contract basis aligned to specific project requirements rather than maintaining a large owned fleet. The water depth range of 300 to 400 metres across the three field locations falls within the operational envelope of mainstream deepwater construction vessels, supporting efficient mobilisation planning without requiring ultra-deepwater specialist assets.

 

Implications for the Norwegian Subsea Services Market

 

The DeepOcean award reflects continued activity in the Norwegian subsea services market, where a combination of ongoing field life extension work, satellite tieback development, and infrastructure replacement programmes is sustaining demand for capable subsea contractors. The SIMOPRO element at Visund is particularly indicative of a broader trend in which operators seek to execute complex installation and replacement campaigns without shutting down production, requiring contractors with the engineering depth and project management capability to manage the associated risk. The Isflak tieback award signals the beginning of production development activity around Johan Castberg, which has the potential to generate a sustained programme of subsea installation workscope as additional Barents Sea discoveries are connected to the facility over the coming years.