Subsea7 partnership awarded pair of contracts offshore Norway

UK-headquartered Subsea7 has been awarded contracts together valued at between $50 million and $150 million related to Equinor’s Irpa and Verdande field developments in the Norwegian Sea.

The two projects will be executed by a consortium comprising Subsea7 and DeepOcean.

The Irpa project, located in the Aasta Hansteen area in a water depth of 1350 metres, involves a subsea tie-back of 80 kilometres to the Aasta Hansteen floating production facility.

The contract scope includes engineering, transportation and installation of a MEG (monoethylene glycol) pipeline, a production riser, umbilical, subsea structures and tie-ins.

The Verdande project involves a subsea tie-back to the existing Skuld field and Norne floating production, storage and offloading vessel.

The contract scope includes engineering, transportation and installation of a 7.5-kilometre pipe-in-pipe production pipeline, umbilical, flexibles, subsea structures and tie-ins.

Project management and engineering will begin immediately at Subsea7’s offices in Stavanger, Norway.

Fabrication of the pipelines will take place at Subsea7’s spoolbase at Vigra, Norway, and offshore operations are planned to take place in 2024, 2025 and 2026 using Subsea7’s and DeepOcean’s vessels.

The Irpa discovery contains a potential 20 billion cubic metres of gas, and is being developed by a consortium of operator Equinor, which holds 51%, Petoro with 20%, Wintershall Dea holding 19% and Shell with 10%.

Verdande lies in water depths of between 350 and 380 metres, and holds estimated recoverable reserves of 36.3 million barrels of oil equivalent.

The field is being developed by a joint venture comprising Equinor on 59%, Petoro with 22.4%, Vaar Energi holding 10.5%, AkerBP with 7% and PGNiG holding 0.8%.