AASTA HANSTEEN

Discovery year
1997
Wellbore
Status
Producing
Licence

Operator:

Equinor Energy AS

Area:

Norwegian sea

Production start:

16.12.2018

Historical investments per 31.12.2022:

36 470 MILL NOK (nominal)

Future investments from 2023:

836 MILL NOK (real 2023 NOK)

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PRODUCTION FROM THE FIELD

Development

Aasta Hansteen is a field in the northern part of the Norwegian Sea, 120 kilometres northwest of the Norne field. The water depth is 1270 metres. Aasta Hansteen was discovered in 1997, and the plan for development and production (PDO) was approved in 2013. The field initially comprised three separate accumulations: Luva, Haklang and Snefrid Sør. A new accumulation was discovered in 2015, Snefrid Nord. The field is developed with a SPAR (Single Point Anchor Reservoir) platform moored to the seabed. The development includes in addition two subsea templates with four slots each and two subsea templates with one slot each (satellites). The templates are tied-back to the platform through pipelines and steel catenary risers. Aasta Hansteen was granted a PDO exemption for the development Snefrid Nord in 2017. The production started in 2018.

Reservoir

The main reservoirs contain gas in Upper Cretaceous sandstone in the Nise Formation, at a depth of 3000 metres. The reservoir quality is good.

Recovery strategy

The field is produced by pressure depletion and natural aquifer drive.

Transport

Gas from Aasta Hansteen is transported via the Polarled pipeline to the terminal at Nyhamna. Light oil is offloaded to shuttle tankers and transported to the market.

Status

The production is at the end of the plateau phase. It is planned to produce the field with low-pressure production in the future. The Irpa field is under construction as a subsea tied-back to Aasta Hansteen.

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ACCRUED INVESTMENTS IN NOMINAL NOK

NORWEGIAN OFFSHORE DIRECTORATE'S CURRENT RESOURCE ESTIMATES

All numbers in mill. Sm3 o.e.

Print table Download data NORWEGIAN OFFSHORE DIRECTORATE'S CURRENT RESOURCE ESTIMATES

NORWEGIAN OFFSHORE DIRECTORATE'S CURRENT RESOURCE ESTIMATES – All numbers in mill. Sm3 o.e.
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OWNERS

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OWNERS

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DISCOVERIES INCLUDED IN THE FIELD

MORE INFORMATION

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