The underwater operations will be undertaken by Aker BP's contractor, Subsea 7.
The application applies to the Alvheim, Ula and Valhall fields.
The underwater operations will be carried out by the diving vessels DSV Seven Falcon, DSV Seven Atlantic and LDC Seven Spray.
Schedule start-up is in Q3 or Q4 of 2018. The activities will last around 19 days.
About the fields
The Alvheim field has been developed using a floating production, storage and offloading (FPSO) unit. The field includes three discoveries: Boa, East Kameleon and Kneler. These have been developed using individual subsea facilities tied back to the Alvheim FPSO.
Ula is an oil field is in the southern part of the Norwegian sector of the North Sea. Water depth in the area is approximately 70 metres. The development consists of three conventional steel facilities for production, drilling and accommodation, which are linked by bridges.
Valhall is an oil field in the southern North Sea in 70 metres of water. The field was originally developed with an accommodation facility, a drilling facility and a production facility. In 1996, a wellhead facility (Valhall WP) was installed, with slots for 19 extra wells.
Øyvind Midttun, press contact
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