GJØA

Discovery year
1989
Wellbore
Status
Producing
Licence

Operator:

Neptune Energy Norge AS

Area:

North sea

Production start:

07.11.2010

Historical investments per 31.12.2016:

29 530 MILL NOK (nominal)

Future investments from 2017:

133 MILL NOK (real 2017 NOK)

PRODUCTION FROM THE FIELD

Source: The Norwegian Petroleum Directorate

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PRODUCTION FROM THE FIELD

Development

Gjøa is a field in the northern part of the North Sea, 50 kilometres northeast of the Troll field. The water depth in the area is 360 metres. Gjøa was discovered in 1989, and the plan for development and operation (PDO) was approved in 2007. The field is developed with four subsea templates and one satellite well tied-back to a semi-submersible production and processing facility. The Gjøa facility is partly supplied with power from shore. The Vega and Vega Sør fields are tied-back to Gjøa for processing and further export. Production started in 2010.

Reservoir

The reservoir contains gas above a relatively thin oil zone in sandstone of Jurassic age in the Dunlin, Brent and Viking Groups. The field comprises several tilted fault segments with partly uncertain communication and variable reservoir quality. The reservoir depth is 2,200 metres.

Recovery

The field is produced by pressure depletion. In the southern segments, oil production was prioritised in the first years. Gas blow-down, production of the gas cap, started in 2015. Low pressure production was implemented in 2017.

Transport

Stabilised oil is exported by pipeline connected to Troll Oil Pipeline II, for further transport to the Mongstad terminal. Rich gas is exported via the Far North Liquids and Associated Gas System (FLAGS) on the UK continental shelf, for further processing at the St Fergus terminal in the UK.

Status

Gjøa is being considered as host for additional resources in the area. Possibilities to increase reserves in the licence are being evaluated.

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

MORE INFORMATION

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