25/2-19 S og 25/2-19 A

03/10/2017 Aker BP ASA, operator of production licence 442, has completed the drilling of appraisal well 25/2-19 S and wildcat well 25/2-19 A.

The wells were drilled in the central part of the North Sea, about 12 kilometres northeast of the Frøy field and 200 kilometres northwest of Stavanger.

The oil and gas discovery 25/2-10 S (Frigg-GammaDelta) was proven in the Gamma structure in Eocene reservoir rocks (Frigg formation) in 1986. The discovery also includes the 25/2-17 oil discovery proven in the Delta structure in 2009. Before well 25/2-19 S was drilled, the operator’s resource estimate for discovery 25/2-10 S (Frigg-GammaDelta) was about 10 million Sm3 of recoverable oil and 2 billion Sm3 of recoverable gas.

The objective of well 25/2-19 S was to delineate the oil discovery in the Delta structure towards the north and examine the mobility of the oil in the Frigg formation. The well encountered an oil column of 13.5 metres in sandstone with good reservoir quality. The oil/water contact was encountered near 1950 metres below the sea surface. Analyses are ongoing to confirm the resource estimate.

The primary and secondary exploration targets for wildcat well 25/2-19 A were to prove petroleum in Middle Jurassic reservoir rocks (Hugin and Sleipner formations). In the Hugin and Sleipner formations, multiple sandstone layers were encountered, totalling about 50 to 60 metres in each of the formations with reservoir quality varying from poor to good. There are traces of petroleum in some of the sandstone layers in the Sleipner formation. The well is classified as dry.

The well was not formation tested, but data acquisition and sampling have been carried out.

These are the sixth and seventh exploration wells in production licence 442. The licence was awarded in APA 2006.

25/2-19 S was drilled to vertical and measured depths of 2212 and 2325 metres below the sea surface, respectively, and the well was terminated in the Sele formation from the Palaeocene Age.

25/2-19 A was drilled to vertical and measured depths of 3989 and 4155 metres below the sea surface, respectively. The well was terminated in the Sleipner formation. Water depth at the site is 120 metres. The wells have been permanently plugged and abandoned.

Wells 25/2-19 S and 25/2-19 A were drilled by the Maersk Interceptor drilling facility, which will now proceed to drill development wells on the Tambar field, where Aker BP ASA is the operator.


Contact in the Norwegian Petroleum Directorate

Eldbjørg Vaage Melberg, tel. +47 51 87 61 00


25/2-19 S og 25/2-19 A

Updated: 03/10/2017

Latest news

Prestigious UN post for Harald Brekke
23/06/2022 Senior geologist Harald Brekke has been elected to the Commission on the Limits of the Continental Shelf (CLCS).
Production figures May 2022
21/06/2022 Preliminary production figures for May 2022 show an average daily production of 1 831 000 barrels of oil, NGL and condensate.
Dry well near the Kvitebjørn field in the North Sea – 34/9-1 S
21/06/2022 Equinor Energy AS, operator of production licence 1049, has concluded the drilling of wildcat well 34/9-1.
Ingrid Sølvberg resigns as Director General
17/06/2022 Sølvberg has today, Friday 17 June, resigned from her position as Director General for the Norwegian Petroleum Directorate.
Is the glass half-empty or half-full?
17/06/2022 There's no reason to sit back and rest on our laurels when an old field reaches tail production.
Minor gas discovery southwest of the Skarv field in the Norwegian Sea – 6507/4-3 S
16/06/2022 ConocoPhillips Skandinavia AS, operator of production licence 1064, has concluded the drilling of wildcat well 6507/4-3 S in the Norwegian Sea.
Dry well near the Ormen Lange field in the Norwegian Sea – 6305/5-C-3 H
15/06/2022 Equinor Energy AS, operator of production licence 209, has concluded the drilling of wildcat well 6305/5-C-3 H.
Announcement of awards in predefined areas (APA) 2022
14/06/2022 The Ministry of Petroleum and Energy announced APA 2022 on 10 June 2022, encompassing the predefined areas with blocks in the North Sea, Norwegian Sea and Barents Sea.
The NPD celebrates its 50th anniversary today!
14/06/2022 14 June 1972 – Parliament (the Storting) decided to establish the Norwegian Petroleum Directorate (NPD) and Statoil (now Equinor).
Building the future on the shoulders of history
13/06/2022 14 June marks the 50th anniversary of the Storting's (parliament's) decision to establish the Norwegian Petroleum Directorate (NPD) and Statoil. Director General Ingrid Sølvberg takes a walk down memory lane, observes the current unrest in the world of energy and fixes her eyes on the future.