Norway Sea

Norway-based oil and gas company Wintershall Norge announced that it has completed the drilling of wildcat well 6407/1-6 S in the Norwegian Sea.

The well, which was drilled about four kilometres north-east of the Tyrihans field and eight kilometres south-east of the 6406/3-8 oil / gas discovery, has now been permanently plugged and abandoned, according to the Norwegian Petroleum Directorate (NPD).

It was drilled by the Transocean Arctic drilling facility to a vertical depth of 4,050 metres and a total measured depth of 4,250 metres below the sea surface.

The facility will now move to production licence 418 in the northern part of the North Sea to drill appraisal well 35/9-8, which is operated by Wintershall Norge.

NPD noted the 6407/1-6 S was terminated in the Ror formation from the Lower Jurassic Age at a water depth of 291 metres.

The main exploration target for the well was to confirm the presence of petroleum in Middle Jurassic reservoir rocks, which includes the Garn and Ile formations, while the secondary exploration target was to confirm petroleum in reservoir rocks in the Lower Cretaceous, with the main focus on the Lange formation.

Aquiferous reservoirs, with gross vertical thicknesses of 118 and 123 metres respectively, were encountered in the Garn and Ile formations with reservoir quality as expected.

Drilling also confirmed the presence of gas / condensate in three thin sandstone intervals with a total net vertical thickness of nine metres in the Lange formation and with a gross reservoir thickness of 52 metres.

Wildcat well is the first exploration well in production licence 475, which was awarded on 29 February 2008.

Image: Drilling over the 6407/1-6 S well discovered proven aquiferous reservoirs and gas / condensate. Photo courtesy of the Norwegian Petroleum Directorate (NPD).