BALDER

Discovery year
1967
Wellbore
Status
Producing
Licence

Operator:

Vår Energi AS

Area:

North Sea

Production start:

02.10.1999

Historical investments per 31.12.2018:

34 500 MILL NOK (nominal)

Future investments from 2019:

27 444 MILL NOK (real 2019 NOK)

PRODUCTION FROM THE FIELD

Source: The Norwegian Petroleum Directorate

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PRODUCTION FROM THE FIELD

Reservoir

Balder, including Ringhorne, produces oil from several separate deposits in sandstone of Jurassic, Paleocene and Eocene age. Balder produces from the Heimdal and Hermod Formations as well as from the injected sand complex above them. Ringhorne produces from the Hugin, Ty and Hermod Formations. The reservoirs are of good to very good quality. The Balder reservoir lies at a depth of 1,700 metres and the Ringhorne reservoir at a depth of 1,900 metres.

Status

The field is now in the tail phase. Studies evaluating possibilities to improve recovery on Balder, including Ringhorne, are ongoing. 4D seismic has repeatedly been acquired and is being used as a basis for reservoir monitoring and evaluation of new drilling targets. Drilling campaigns are ongoing. A revised PDO for Balder and Ringhorne was submitted in December 2019. The development plan includes lifetime extension and relocation of the Jotun FPSO, and drilling of new subsea wells.

Development

Balder is a field in the central part of the North Sea, just west of the Grane field. The water depth is 125 metres. Balder was discovered in 1967, and the initial plan for development and operation (PDO) was approved in 1996. Production started in 1999. The field has been developed with subsea wells tied-back to the Balder production, storage and offloading vessel (FPSO). The Ringhorne deposit, located nine kilometres north of the Balder FPSO, is included in the Balder complex. Ringhorne is developed with a combined accommodation, drilling and wellhead facility, tied-back to the Balder FPSO and Jotun FPSO for processing, crude oil storage and gas export. The nearby field Ringhorne Øst is also tied-back to Balder via the Ringhorne platform. The PDO for Ringhorne Jura was approved in 2000 and production started in 2003. The Ringhorne Vest PDO exemption was approved in 2003 and production started in 2004. An amended PDO for Ringhorne was approved in 2007.

Recovery

Balder and Ringhorne produce primarily by natural aquifer drive, but reinjection of produced water is used for pressure support, especially into the Ringhorne Jurassic reservoir. Excess water is injected into the Utsira Formation. Gas is also reinjected if the gas export system is down.

Transport

The oil is transported by tankers. Excess gas from Balder and Ringhorne is exported from the Jotun FPSO through the Statpipe system to Kårstø and from there on to continental Europe.

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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