Development

Valemon is a field in the northern part of the North Sea, just west of the Kvitebjørn field. The water depth is 135 metres. Valemon was discovered in 1985, and the plan for development and operation (PDO) was approved in 2011. The field is developed with a fixed production platform with a simplified separation process design. The platform is remotely controlled from an operations centre onshore. Production started in 2015.

Reservoir

Valemon produces gas and condensate from Lower Jurassic sandstone in the Cook Formation and Middle Jurassic sandstone in the Brent Group. The deposit has a complex structure with many fault blocks. The reservoirs lie at a depth of 3,900-4,200 metres and have high temperature and high pressure (HTHP).

Recovery strategy

The field is produced by pressure depletion.

Transport

The condensate is transported by pipeline to the Kvitebjørn field, and via the Kvitebjørn Oil Pipeline to Mongstad. The rich gas is exported via the previous Huldra pipeline to Heimdal for further export to the UK or continental Europe.

Status

Due to production experience and rapid pressure decline in the reservoirs, the estimated recoverable volumes have been significantly reduced since the PDO. A drilling campaign including four new production wells started in 2021, but the three first wells are delivering below expectation. Permanent rerouting of the Valemon gas export to Kollsnes terminal via Kvitebjørn is planned when the Heimdal facility closes in 2023.