NPD reports dry North Sea exploration wells

Source: press releases, 9 January 2019

illustration: NPD
illustration: NPD

The Norwegian Petroleum Directorate (NPD) has reported two dry exploration wells in the southern North Sea.

The first, in production licence 860, where MOL Norge AS, as operator, is in the process of concluding the drilling of wildcat well 2/6-6 S.

The well has been drilled about 45 kilometres east of the Valhall and Ekofisk fields and 20 km north of the Norwegian-Danish border in the Mandal High area.

The primary and secondary exploration targets for the well were to prove petroleum in reservoir rocks in the Paleocene and in the Permian (Intra Våle formation sandstone and the Rotliegend group, respectively).

The well encountered an approximately 34-metre thick sandstone layer in the Intra Våle formation with good reservoir quality. In the Rotliegend group, the well encountered 105 metres with relatively tight sandstone.

Extensive data acquisition and sampling have been carried out. The well is dry.

This is the first exploration well in production licence 860. The licence was awarded in APA 2016.

Well 2/6-6 S was drilled to a vertical depth of 3576 metres and 3843 metres measured depth below the sea surface, and it was terminated in the Rotliegend group. Water depth at the site is 69 metres.

The well will now be permanently plugged and abandoned.

Well 2/6-6 S was drilled by the Rowan Viking.

The second, in production licence 405, where Spirit Energy Norway AS, as operator, has completed the drilling of wildcat well 8/10-7 S.

The well was drilled about five kilometres north of the Oda field in the southern part of the North Sea.

The objective of the well was to prove petroleum in Upper Jurassic reservoir rocks (the Ula formation) and to assess the reservoir properties in Upper Jurassic and Triassic intervals.

The well encountered the Ula formation of about 15 metres, of which effective reservoir rocks in sandstone intervals totalling 7 metres, with poor reservoir properties. In the Upper Jurassic and Triassic intervals, the rocks are tight. The well is dry.

Data acquisition has been carried out.

This is the seventh exploration well in production licence 405. The licence was awarded in APA in 2006.

Well 8/10-7 S was drilled to a vertical depth of 2918 metres and 3100 metres measured depth below the sea surface, and it was terminated in the Zechstein group in the Permian.

Water depth at the site is 66 metres. The well will now be permanently plugged and abandoned.

Well 8/10-7 S was drilled by the Maersk Interceptor, which will now drill appraisal well 2/11-12 S in the southern part of the North Sea, more specifically in production licence 033, where Aker BP ASA is the operator.