Premier proves more offshore oil in North Sea Catcher area

Premier Oil has discovered oil with an exploration well and side track on the Bonneville prospect in the UK central North Sea.

Offshore staff

LONDON – Premier Oil has discovered oil with an exploration well and side track on the Bonneville prospect in the UK central North Sea.

The structure is 4 km (2.4 mi) south of theBurgman discovery on the Catcher license, where Premier expects to submit plans for a multi-field development later this year. 

The Bonneville well (28/9a-6) was drilled by the semisubmersibleWilPhoenix to 4,481 ft (1,366 m) true vertical depth subsea (TVDSS). It encountered a gross oil column of 66 vertical ft (20 m) in the Tay interval with an estimated net oil pay of 26 ft (8 m).

A side track (28/9a-6z) was then drilled to the Bonneville East prospect to 4,441 ft (1,353 m) TVDSS. It intersected 34 ft (10 m) of net oil pay in a gross oil column of 175 vertical ft (53 m) in the Tay interval.

Premier estimates oil in place at 30 MMbbl. Both discoveries, it adds, are in high-quality reservoirs with average porosities of roughly 30%, with initial sampling suggesting similar quality oil to the 25° API Burgman field.

WilPhoenix will now head to the west of Shetland region to start development drilling at the Premier-operated Solan project.

4/23/2013

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