Alta: Extended well test

Lundin Norway has commenced drilling of a horizontal well on the Alta discovery in the Barents Sea. The purpose is extended well testing.

A 700 metres long horizontal well (7220/11-5) is being drilled in the oil zone of the Alta discovery, 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.

Figure: Lundin Norway

The Alta discovery in the southern Barents Sea was made in 2014 and three successful appraisal wells have been completed to date. The adjacent Gohta discovery 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.

The well will be tested through 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. 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 AS and Idemitsu Petroleum Norge AS with 30 percent working interest each.

Figur: Lundin Norway

Related article: Borer avgrensningsbrønn på Alta

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