Lundin meets goals with latest appraisal of Alta in Barents Sea
The semisubmersible Island Innovator has completed drilling an appraisal well and side track on the western flank of Lundin Norway’s Alta oil discovery in the Barents Sea.
Alta is a short distance north of the company’sGohta discovery and roughly 160 km (99.4 mi) from the northern Norwegian coastline.
After drilling the Alta discovery well 7220/11-1 in October 2014, Lundin estimated recoverable oil and gas in the range of 125-400 MMboe.
This year’s appraisal well 7220/11-2 was drilled 6.5 km (4 mi) to the southwest in 379 m (1,243 ft) of water. Main goals, which were achieved, were to confirm the reservoir model and prove hydrocarbon columns and fluid contacts similar to those established in the discovery well.
The well encountered a 50-m (164-ft) thick gas column in rocks of variable reservoir quality. The subsequent 7220/11-2 A side track, drilled 330 m (1,082 ft) to the west of the well, found movable oil.
Pressure data and fluid properties indicate communication between all three Alta wells.
During a drillstem test on the side track, maximum production rate was 860 b/d of oil and 0.65 MMcf/d of gas through a 24/64-in. choke.
Ashley Heppenstall, president and CEO of Lundin Petroleum, said; “Whilst the reservoir encountered is of variable quality, the production test and data acquired provides us with confidence of connectivity across the structure and improved reservoir quality away from the wellbore.”
Island Innovator will next drill appraisal well 7220/11-3 on Alta’s eastern flank in license PL609.