Alcatel Submarine Networks has secured a contract from Statoil for permanent reservoir monitoring (PRM) services at the Johan Sverdrup field in the Norwegian Continental Shelf.

The seismic technology will serve as an important contributor in optimising recovery from the field.

Johan Sverdrup project director Kjetel Digre said: “Johan Sverdrup will make up a significant part of Norwegian oil production going forward and has a lifespan of over 50 years, so it is important that we work systematically to maximise value and ensure as high a recovery factor as possible from the field.

“PRM plays an important role in this, and will be a key tool in realising the 70% recovery ambition on Johan Sverdrup.”

Johan Sverdrup has 380km of fibre-optic seismic cables installed on the seabed and more than 6,500 acoustic sensors covering an area of nearly 120km².

Installation work for the seismic cables will start next year.

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By GlobalData
“Johan Sverdrup will make up a significant part of Norwegian oil production going forward and has a lifespan of over 50 years.”

With PRM, the seismic sensors are permanently embedded in the seabed to provide improved images of reservoir changes.

At Johan Sverdrup, Statoil plans to use optical fibre technology that will allow recording all changes in the subsurface continuously and devise a digital roadmap for the field.

Johan Sverdrup Petroleum technology head Eli Eikje said: “We see great potential with PRM on Johan Sverdrup in terms of improved visualisation, modelling and eventually also predictive analytics.

“This should give us improved precision in our well locations, help us better control production and injection, but should also contribute with information about the condition of wells and subsea infrastructure, which is critical for a field with a 50-year lifespan.”

Statoil and Alcatel Submarine Networks also agreed to explore future opportunities of collaboration for technology development and solutions to maximise PRM system potentiality.

The agreement also includes an option to include Johan Sverdrup’s southernmost part under seismic coverage.