Development

Edvard Grieg is a field in the Utsira High area in the central North Sea, 35 kilometres south of the Grane and Balder fields. The water depth is 110 metres. Edvard Grieg was discovered in 2007, and the plan for development and operation (PDO) was approved in 2012. The field is developed with a fixed installation with a steel jacket and full process facility, and it utilises a jack-up rig for drilling and completion of wells. Production started in 2015. The Edvard Grieg installation supplies power to the Ivar Aasen field and processes the well stream from Ivar Aasen. Solveig and Rolvsnes are tied-back to Edvard Grieg.

Reservoir

Edvard Grieg produces undersaturated oil from alluvial, aeolian and shallow marine sandstone and conglomerate of Late Triassic to Early Cretaceous age. Reservoir quality varies from moderate to very good in marine and aeolian sandstone, while the quality is poorer in alluvial sandstone and conglomerate. Oil is also proven in the underlying basement. The reservoir is at a depth of 1,900 metres.

Recovery strategy

The field is produced by pressure support from water injection.

Transport

The oil is exported by pipeline to the Grane Oil Pipeline, which is connected to the Sture terminal. The gas is exported in a separate pipeline to the Scottish Area Gas Evacuation (SAGE) system in the UK.

Status

The field has been producing better than expected and recoverable volumes have increased significantly since the PDO due to excellent reservoir performance. Production is still in its plateau phase, and several new producers may come on stream in 2023. Test production from Rolvsnes started in 2021 and will continue in 2023.