SNORRE

Discovery year
1979
Wellbore
Status
Producing
Business unit

Operator:

Equinor Energy AS

Area:

North Sea

Production start:

03.08.1992

Historical investments per 31.12.2019:

97 028 MILL NOK (nominal)

Future investments from 2020:

49 508 MILL NOK (real 2020 NOK)

PRODUCTION FROM THE FIELD

Source: The Norwegian Petroleum Directorate

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PRODUCTION FROM THE FIELD

Development

Snorre is a field in the Tampen area in the northern part of the North Sea. The water depth is 300-350 metres. Snorre was discovered in 1979, and the plan for development and operation (PDO) was approved in 1988. The field is developed with the facilities Snorre A, located in the southern part of the field, and Snorre UPA, located centrally on the field. Snorre A is a floating tension-leg platform for accommodation, drilling and processing. Snorre UPA is a subsea production facility tied-back to Snorre A. There is also a separate process module on Snorre A for full stabilisation of the well stream from the Vigdis field. Production from Snorre A started in 1992. In 1998, a PDO was approved for Snorre B, a semi-submersible integrated drilling, processing and accommodation facility located in the northern part of the field. Snorre B started production in 2001. In 2018, an amended PDO for the Snorre Expansion Project was approved. It includes six subsea templates, each with four wells tied-back to Snorre A. Production started in December 2020. In 2020, an amended PDO for the development of the Hywind Tampen wind farm was approved. The wind farm will consist of 11 floating turbines which will supply electricity to the Snorre and Gullfaks fields. The Snorre and Gullfaks platforms will be the first platforms in the world to receive power from a floating wind farm.

Reservoir

Snorre produces oil from Triassic and Lower Jurassic sandstone in the Alke and Lunde Formations and the Statfjord Group. The field consists of several large fault blocks. The reservoir is at a depth of 2,000-2,700 metres and has a complex structure with both channels and flow barriers.

Recovery

The field is produced with pressure support from water injection, gas injection and water alternating gas injection (WAG). From 2019, all gas is reinjected to increase oil recovery. Additional gas will be imported from Gullfaks for pressure support and improved reservoir drainage.

Transport

Oil and gas are separated at the Snorre A platform. The oil is stabilised at the Vigdis process module on Snorre A, then exported through the Vigdis pipeline to Gullfaks A. The oil is stored and loaded onto shuttle tankers at the Gullfaks field. All gas from Snorre and Vigdis is reinjected into the Snorre field. Fully processed oil from Snorre B is transported by pipeline to Statfjord B for storage and loading onto shuttle tankers.

Status

Technical failure of a riser on the Snorre B platform resulted in reduced production in 2020. After retermination or replacement of all injection risers on Snorre B, production and injection have been reestablished. Several measures to increase oil recovery from Snorre are being considered. Requests from possible third party tie-ins may also lead to further development of the field. The Hywind Tampen wind farm is scheduled for start-up at 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

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DISCOVERIES INCLUDED IN THE FIELD

DISCOVERY
34/4-1 Snorre

MORE INFORMATION

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