Lundin Petroleum announced that it has successfully
completed the drilling of appraisal well 7220/11-2 and sidetrack 7220/11-2 A in
the western part of the Alta discovery in PL609. Lundin Norway is the operator holding
40% interest in PL609 and with partners RWE and Idemitsu holding 30% interest
each.
The Alta discovery well 7220/11-1 was completed in October
2014. The preliminary evaluation of the gross recoverable oil and gas resource
range from the Alta discovery well after the first well was estimated at 125 to
400 mmboe.
The objective of the wells was to delineate the 7220/11-1
discovery and also investigate the extent of the reservoir and hydrocarbon
columns. Well 7220/11-2 encountered a 50-metre gas column in reservoir rocks
with good to poor reservoir quality. The oil zone is in tight rocks and a
decision was therefore made to drill a sidetrack, 7220/11-2 A, about 330 metres
to the west. Well 7220/11-2 A encountered gas and oil in reservoir rocks with
good to poor reservoir quality. The age of the reservoir rocks is uncertain,
but is assumed to be Triassic and/or Permian.
Appraisal wells 7220/11-2 and 7220/11-2 A were drilled to
vertical depths of 2020 and 2041 metres below the sea surface, respectively,
and were terminated in basement rocks. Water depth is 379 m. The wells were
drilled using the drilling rig Island Innovator and are now being permanently
plugged and abandoned. The Island Innovator will then proceed to drill the next
appraisal well, 7220/11-3, on the eastern flank of the Alta discovery in PL609.
The well is expected to spud mid-June.
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