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Statoil drills well in the Barents Sea

Published by
Oilfield Technology,


Operator of production licence 532, Statoil Petroleum AS has completed the drilling of wildcat well 7219/9-2. The well has been drilled approximately 23 km southwest of the discovery well 7220/8-1 Johan Castberg and 225 km northwest of Hammerfest.

The primary exploration target for the well was to prove petroleum in Early Cretaceous reservoir rocks (top part of the Kolje formation). The secondary exploration target was to prove petroleum in somewhat older Early Cretaceous reservoir rocks (lower part of the Kolje formation).

Well 7219/9-2 encountered oil in two sandstone intervals with thicknesses of 27 and 18 m, with moderate to poor reservoir quality in the upper part of the Kolje formation. The oil-water contact was not encountered. Reservoir rocks were not encountered in the lower part of the Kolje formation.

The well was drilled to a vertical depth of 2532 m below the sea surface, and was terminated in the Stø formation in the Middle Jurassic. Water depth is 336 m. The well will now be permanently plugged and abandoned.

Preliminary estimates place the size of the discovery between 4 - 8 million m3 of recoverable oil. Tie-in of the discovery to the Johan Castberg discovery will be assessed. Further delineation of the discovery is currently being considered to clarify the total volume potential.

The well was not formation tested, but extensive data acquisition and sampling have been carried out.

Read the article online at: https://www.oilfieldtechnology.com/exploration/03072017/statoil-drills-well-in-the-barents-sea/

 

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