6407/1-7 og 6407/1-7 A

10/04/2014 Wintershall Norge AS, operator of production licence 475, has concluded the drilling of appraisal wells 6407/1-7 and 6407/1-7 A.

The wells were drilled about eight kilometres northeast of the Tyrihans field and five kilometres northeast of the 6407/1-6 S gas condensate discovery in production licence 475. The reservoir in this discovery consists of thin sandstone layers from the Lange formation in the Lower Cretaceous. The discovery was made in January 2013. The resource estimate for the discovery was then between 3 and 20 million Sm3 of recoverable oil equivalents.

The objective of well 6407/1-7 was to delineate the 6407/1-6 gas/condensate discovery higher up in the structure. A new appraisal well, 6407/1-7 A, was therefore drilled downflank to investigate reservoir thickness and lithology.

Well 6407/1-7 proved gas/condensate in two sandstone intervals with a net vertical thickness of 12 metres and a gross reservoir thickness of 16 metres. Well 6407/1-7 A proved gas/condensate in two sandstone intervals with a vertical thickness of seven metres and a gross reservoir thickness of 13 metres.

The difference in pressure measurements between wells 6407/1-7, 6407/1-7 A and the discovery well 6407/1-6 S indicates that there is no communication between the appraisal wells and the 6407/1-6 S discovery. Well 6407/1-7 has therefore proven a separate discovery, and will be reclassified as a wildcat well.

Preliminary estimates of the size of the new gas/condensate discovery range from 1 to 4 million Sm3 of recoverable oil equivalents.

The resource estimate for the 6407/1-6 S gas/condensate discovery has now been downgraded to between 1 and 6 million Sm3 of recoverable oil equivalents. The licensees will consider the discoveries in conjunction with other nearby discoveries as regards future development.

This is the second and third exploration well in production licence 475. The production licence was awarded on 29 February 2008 (APA 2007).

Wells 6407/1-7 and 6407/1-7 A were drilled to vertical depths of 3345 and 3311 metres, respectively, below the sea surface, the latter with a measured depth of 3571 metres. Both wells were terminated in the Lange formation in the Early Cretaceous. Water depth at the site is 280 metres. The well has been permanently plugged and abandoned.

Wells 6407/1-7 and 6407/1-7 A were drilled by the Borgland Dolphin drilling facility, which will now proceed to production licence 550 in the northern part of the North Sea to drill wildcat well  31/2-21 S, where Tullow Oil Norge AS is the operator.

Contact in the Norwegian Petroleum Directorate
Eldbjørg Vaage Melberg, tel. +47 51 87 61 00

 

Map - Download pdf

Updated: 10/04/2014

Latest news

Dry well near the Snorre field in the North Sea – 33/6-5 S
27/10/2021 Neptune Energy Norge AS, operator of production licence 882, has concluded the drilling of wildcat well 33/6-5 S.
Boreløyve for brønn 6407/9-13 i utvinningsløyve 1060
22/10/2021 The Norwegian Petroleum Directorate has issued a drilling permit to Equinor Energy AS for well 6407/9-13, cf. Section 13 of the Resource Management Regulations.
Dry well southeast of the Johan Sverdrup field in the North Sea – 17/8-1
22/10/2021 Lundin Energy Norway AS, operator of production licence 976, is in the process of concluding the drilling of wildcat well 17/8-1.
Drilling permit for well 36/1-4 S in production licence 885
21/10/2021 The Norwegian Petroleum Directorate has issued a drilling permit to Wellesley Petroleum AS for well 36/1-4 S, cf. Section 13 of the Resource Management Regulations.
Production figures September 2021
20/10/2021 Preliminary production figures for September 2021 show an average daily production of 2 022 000 barrels of oil, NGL and condensate,
Drilling permit for well 24/12-7 in production licence 1041
18/10/2021 The Norwegian Petroleum Directorate has issued a drilling permit to Aker BP ASA for well 24/12-7, cf. Section 13 of the Resource Management Regulations.
Minor oil and gas discovery near the 7122/6-1 (Tornerose) discovery in the Barents Sea – 7122/6-3 S
13/10/2021 Vår Energi AS, operator of production licence 901, has concluded the drilling of wildcat well 7122/6-3 S.
Dry well near the Solveig field in the North Sea – 16/4-12
08/10/2021 Lundin Energy Norway AS, operator of production licence 981, is in the process of concluding the drilling of wildcat well 16/4-12.
25 years’ experience with safe and secure CO2storage
05/10/2021 Carbon capture and storage (CCS) is a hot topic. Director General Ingrid Sølvberg recently took part in a panel discussion at the EU-Norway Energy Conference to spread the word about safe and secure storage of CO2 on the Norwegian shelf.
Minor oil discovery near the Ekofisk field in the North Sea – 2/5-15
28/09/2021 DNO Norge AS, operator of production licence 006 C, has concluded the drilling of wildcat well 2/5-15.