Dry well for WintershallMarisko orchid. Picture by Agtx at the English language Wikipedia

Dry well for Wintershall

Well 6706/6-2S on the Marisko prospect in the northern part of the Norwegian Sea is dry. Thick Nise sandstones with poor to moderate reservoir quality contained only traces of gas.

Well 6706/6-2S drilled by Wintershall in PL 847 is the most northern well in the Hel graben in the Norwegian Sea, very close to Hvitveis, a minor discovery and 60km north of Aasta Hansteen. Partners in the license are Wintershall (40% and operator), Repsol and OMV (both 20%) and Dyas and Equinor (both 10%).

Location of well 6706/6-2S Marisko (map GeoPlayground)

The objective of the well was to prove petroleum in two reservoir levels in the upper Cretaceous (the Nise formation). The well encountered both the sandstone reservoirs in the Nise formation. The upper reservoir is about 230 meters thick, with effective reservoir of 175 metres with moderate reservoir properties. The lower reservoir is about 180 metres thick with effective reservoir of 175 metres with poor reservoir properties. There were traces of gas in both reservoirs but the well is classified as dry.

Lithostratigraphy of the Norwegian Sea- with the target of Marisko: the Nise formation (NPD)