Lundin Petroleum’s subsidiary Lundin Norway has started drilling well 7220/11-5 on the Alta discovery in PL609 in the southern Barents Sea. Following drilling, the well will be used for extended well testing.
Lundin got a drilling permit from the Norwegian Petroleum Directorate (NPD) for the well last February and a consent from the Petroleum Safety Authority (PSA) to use the Leiv Eiriksson rig on it earlier in April.
The Alta discovery is located in PL609 in the southern Barents Sea, approximately 160 km from the Norwegian coastline. The discovery was made in 2014 and three successful appraisal wells have been completed to date.
The adjacent Gohta discovery located in PL492 is considered a possible joint development opportunity together with the larger Alta discovery. The combined gross contingent resource range for the Alta and Gohta discoveries is estimated to between 115 and 390 MMboe.
Lundin said on Monday that a 700 meters long horizontal well will be drilled in the oil zone, which will improve the lateral geological understanding of the Permian-Triassic karstified and fractured carbonate reservoirs. The main objectives of the extended well test is to prove sustainable production rates and reduce the uncertainty around the recovery mechanism in this reservoir to provide the basis to progress development studies.
The semi-submersible drilling rig Leiv Eiriksson will be used for the drilling and testing at Alta. The well will be tested through the rig for about two months and the produced volumes will be flowed via a flexible flowline to a tanker. At the end of the test, the oil and water produced to the tanker will be delivered to the Mongstad oil terminal on the west coast of Norway.
According to the company, a successful outcome of the extended well test will provide important information to progress further appraisal drilling and field development activities. Drilling and testing is expected to take 140 days.
Lundin Norway is the operator of PL609 with a 40 percent working interest. The partners are DEA Norge and Idemitsu Petroleum Norge with 30 percent working interest each.