Spirit hits dust in Barents Sea well

Spirit Energy has drilled a dry well near the Johan Castberg field in the Barents Sea offshore Norway.

The well 7321/8-2 S was drilled about 110 kilometres north of the Johan Castberg field and about 310 kilometres north of Hammerfest.

Spirit received consent from the Norwegian offshore safety body to drill the well According to the safety regulator, the activities on the well, designated 7321/8-2 S using the Leiv Eiriksson drilling rig in April 2020.

Come May and Spirit also received a drilling permit for this well from the Norwegian Petroleum Directorate (NPD).

Announcing the results of the well on Monday, the NPD said that the primary exploration target for the well was to prove petroleum in Middle Jurassic to Upper Triassic reservoir rocks (the Stø, Fruholmen and Snadd Formations).

The secondary exploration target was data acquisition to improve understanding of potential reservoir rocks in the Lower Cretaceous (the Kolje Formation).

Well results

In the primary exploration target, the well encountered the Stø Formation with a thickness of about 30 metres, with water-bearing sandstone layers of 20 metres, mainly with moderate reservoir quality.

The Fruholmen Formation was about 120 metres thick, with several water-bearing sandstone layers in the upper part of the formation, totalling 30 metres, mainly with moderate to poor reservoir quality.

About 80 metres of the upper part of the Snadd Formation was drilled, but the only thing encountered was a water-bearing sandstone layer, 2 metres thick and with good reservoir quality.

The secondary exploration target encountered traces of petroleum in silt/fine sands in the Lower Cretaceous (the Kolje Formation). The well is classified as dry. Data acquisition has been carried out.

This is the first exploration well in production licence 719, which was awarded in the 22nd licensing round in 2013.

The well 7321/8-2 S was drilled to a measured depth of 1874 metres and a vertical depth of 1777 meters below sea level, and it was terminated in the Snadd Formation in the Upper Triassic.

The water depth at the site is 466 metres. The well has been permanently plugged and abandoned.

The well 7321/8-2 S was drilled by the Leiv Eiriksson drilling rig.

The rig will now drill wildcat well 16/1-33 S in production licence 780 in the North Sea, where Spirit Energy is also the operator.