Sokkeldirektoratet

Dry well near the Troll field in the North Sea – 31/2-24

deepsea-stavanger-odfjell-drilling.jpg

Well 31/2-24 was drilled by Deepsea Stavanger. Photo: Odfjell Drilling.

6/13/2023 Equinor Energy AS, operator of production licence 923, has completed the drilling of wildcat well 31/2-24.

The well was drilled about three kilometres west of the Troll field in the North Sea and about 115 kilometres northwest of Bergen.

The primary exploration target for the well was to prove petroleum in Upper and Middle Jurassic reservoir rocks in the Sognefjord Formation in the Viking Group and the Tarbert, Ness and Etive formations in the Brent Group.

The secondary exploration target for the well was to prove petroleum in Middle Jurassic reservoir rocks in the Fensfjord Formation in the Viking Group and Oseberg Formation in the Brent Group.

Well 31/2-24 encountered the Sognefjord and Fensfjord formations in the Viking Group, with a total thickness of 514 metres, of which 197 metres were sandstone reservoir of moderate to good quality.

The Tarbert, Ness, Etive and Oseberg formations were encountered in the Brent Group. The Tarbert, Ness and Etive formations have a thickness of about 106 metres, of which 41 metres were sandstone reservoir with poor to good quality. The Oseberg Formation is about 31 metres thick, of which 25 metres were sandstone reservoir of moderate to good quality.

Data acquisition was carried out and the well is dry.

This is the sixth exploration well in production licence 923, which was awarded in APA 2017.

Well 31/2-24 was drilled to a vertical depth of 2558 metres below sea level and was terminated in the Drake Formation in Lower Jurassic.

Water depth is 330 metres. The well has been permanently plugged and abandoned.

Well 31/2-24 was drilled by Deepsea Stavanger, which will now proceed to drill wildcat well 30/11-15 in production licence 035 in the North Sea.

Map showing the location of well 31/2-24

 

Contact

Ola Anders Skauby

Director Communication, public affairs and emergency response

Tel: +47 905 98 519

Updated: 6/13/2023

Latest news

Full house to hear about new technology on the NCS
6/6/2025 "Technology is one of the tools that can help generate additional values from the Norwegian continental shelf (NCS). At Technology Day new technology from different suppliers are presented."
New interactive map of deep sea data
6/5/2025 Today, the Norwegian Offshore Directorate is launching an interactive map, Deep Sea Surveys.
New Director of Offshore development and technology
6/5/2025 Producing the resources on the Norwegian continental shelf (NCS) so they generate the greatest possible values for society is an important driving force for the Norwegian Offshore Directorate's new director.
Proved suitable properties for CO2 injection and storage (9/6-1)
6/2/2025 A wildcat well drilled by Harbour Energy Norge and licensees in the “Havstjerne” storage project confirmed a reservoir that is suitable for injection and storage of carbon dioxide (CO2).
Oil discovery and dry well in the North Sea (31/4-A-23 F and 31/4-A-23 G)
5/28/2025 OKEA and the licensees in production licence 055 have discovered oil along the eastern flank of the Brage field.
Drilling permit for wellbore 35/11-31 S
5/23/2025 The Norwegian Offshore Directorate has granted Equinor Energy AS drilling permit for wellbore 35/11-31 S in production licence 090.
Drilling permit for wellbore 15/5-8 S and 15/5-8 A
5/22/2025 The Norwegian Offshore Directorate has granted Equinor Energy AS drilling permit for wellbore 15/5-8 S and 15/5-8 A in production licence 1140.
Production figures April 2025
5/20/2025 Preliminary production figures for April 2025 show an average daily production of 2 030 000 barrels of oil, NGL and condensate.
Oil discovery in the Norwegian Sea (6507/5-13 S and 6507/5-13 A)
5/20/2025 Aker BP ASA and its partners have made an oil discovery in the so-called E prospect near the Skarv field.
Drilling permit for wellbore 6406/11-2 S
5/19/2025 The Norwegian Offshore Directorate has granted Vår Energi ASA drilling permit for wellbore 6406/11-2 S in production licence 586.