OSELVAR

Discovery year
1991
Wellbore
Status
Shut down
Licence

Operator:

DNO Norge AS

Area:

North Sea

Production start:

14.04.2012

Historical investments per 31.12.2018:

4 433 MILL NOK (nominal)

PRODUCTION FROM THE FIELD

Source: The Norwegian Petroleum Directorate

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PRODUCTION FROM THE FIELD

Development

Oselvar is a field in the southern part of the Norwegian sector in the North Sea, 20 kilometres southwest of the Ula field. The water depth is 70 metres. Oselvar was discovered in 1991, and the plan for development and operation (PDO) was approved in 2009. The development concept was a subsea template with three horizontal production wells tied to Ula. Production started in 2012. 

Reservoir

Oselvar produced oil and gas from sandstone of Paleocene age in the Forties Formation. The reservoir has a gas cap and lies at a depth of 2,900-3,250 metres. 

Recovery

The field was produced by pressure depletion.

Transport

The well stream was transported by pipeline to the Ula field for processing. The gas was used for injection in Ula for improved recovery, while the oil was transported by pipeline to the Ekofisk field for further export.

Status

The field was shut down in 2018. According to the formal disposal resolution, decommissioning must be completed by the end of 2022.

ACCRUED INVESTMENTS IN NOMINAL NOK

Source: The Norwegian Petroleum Directorate

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ACCRUED INVESTMENTS IN NOMINAL NOK

NPD's CURRENT RESOURCE ESTIMATES

All numbers in mill. Sm3 o.e.

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NPD's CURRENT RESOURCE ESTIMATES – All numbers in mill. Sm3 o.e.
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OWNERS

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OWNERS

DISCOVERIES INCLUDED IN THE FIELD

DISCOVERY
1/3-6 Oselvar

MORE INFORMATION

Visit the Norwegian Petroleum Directorate's fact pages for more information