DNO North Sea (Norge) AS and production license 888 partners will assess results of a minor oil discovery near Heidrum field in the Norwegian Sea about further follow-up of resource potential in the license, the Norwegian Petroleum Directorate reported. The well will be plugged.
Well 6507/7-16 S—the first in the license—was drilled 4 km west of Heidrum and 240 km west of Bronnoysund in the northern part of the Norwegian Sea by Island Drilling Company AS’s Island Innovator semi-submersible drilling rig to a measured depth of 3,238 m, and a vertical depth of 3,184 m subsea. It was terminated in the Tilje formation from the early Jurassic age. Water depth at the site is 341 m.
The objective of the well was to prove petroleum in reservoir rocks from the Early and Middle Jurassic Age (the Garn, Ile, and Tilje formations). It encountered a 52-m gas column in the Garn, Not, and Ile formations of which 48 m was sandstone with good to very good reservoir quality. Under the gas column, there is a 4-m thick oil column in the Ile formation. Net water-bearing reservoir rocks of about 75 m were encountered deeper down in the Ile, Ror, and Tilje formations, mainly with moderate to good reservoir quality.
Preliminary calculations place the size of the discovery at 1-2 million standard cu m of recoverable oil equivalents.
The well was not formation-tested, but extensive volumes of data have been collected and samples have been taken.
DNO is operator of production license 888 with 40%. Partners are ConocoPhillips and Wellesley.
Island Innovator was contracted by OMV (Norge) AS to drill one well on license 644, close to Aasgaard field in the North Sea, Island Drilling Co. reported Dec. 12. A separate agreement also was signed, which applies to up to 3 option wells for OMV in other Norwegian sea areas. Drilling is scheduled to begin in the second or third quarter of 2020.