Equinor Energy AS drilled a dry hole in production license (PL) 785 S, about 55 km south of Troll field in the North Sea and 100 km southwest of Bergen in 289 m of water. Data acquisition was carried out. The well will be plugged.
Well 31/11-1 S, the first in the license, was drilled by the Deepsea Atlantic drilling rig to 3,254 m measured and 3,135 m vertical depth below sea level and was terminated in the lower part of the Statfjord Group from the Early Jurassic to Late Triassic.
The primary exploration target was to prove petroleum in the Johansen formation from the Early Jurassic and the Statfjord Group from the Late Triassic to Early Jurassic.
The secondary exploration target was to prove petroleum and investigate reservoir properties in the Sognefjord formation, the Fensfjord formation, the Brent Group (Late to Middle Jurassic), and source rock potential in this part of the Stord basin. Another objective was to evaluate reservoir properties for CO2 storage.
The well encountered 65 m of the Johansen formation, of which 48 m were sandstone with moderate reservoir quality. The well also encountered 28 m of sandstone with moderate reservoir quality in the upper part of the Statfjord Group.
In the secondary target, the well encountered 275 m of the Sognefjord formation of which 65 m were sandstone of moderate to good reservoir quality. It also encountered about 130 m of the Fensfjord formation of which 47 m were sandstone with moderate to good reservoir quality. The Brent Group was not encountered.
Deepsea Atlantic will now drill production well 34/7-J4 AH on Tordis field in PL 089 in the North Sea, where Equinor Energy AS is operator.
Equinor is operator at PL 785 S in a 50-50 partnership with Total E&P Norge AS.