Development

Skirne, including the Byggve accumulation, is a field in the central part of the North Sea, 20 kilometres east of the Heimdal field. The water depth is 120 metres. Skirne was discovered in 1990, and the plan for development and operation (PDO) was approved in 2002. The field was developed with two subsea templates tied to the Heimdal facility. The production started in 2004. The Atla field was tied-back to Skirne in 2012.

Reservoir

Skirne and Byggve produced gas and condensate from Middle Jurassic sandstone in the Brent Group. The Skirne reservoir is at a depth of 2370 metres and the Byggve reservoir at 2900 metres. The reservoir quality is good.

Recovery strategy

The field was produced by pressure depletion.

Transport

The well stream from Skirne was transported in a pipeline to the Heimdal facility for processing. The gas was transported from Heimdal in the Vesterled pipeline to the St Fergus terminal in the UK. Gas was previously also sent through Statpipe to continental Europe. Condensate was transported to the Brae field in the UK sector and further via the Forties pipeline system to Cruden Bay in the UK.

Status

Skirne was shut down in June 2023, and decommissioning is ongoing.