Fossil Energy – Discovery
Equinor and its partners have made an oil and gas discovery in wildcat wells 15/3-13 S and 15/3-13 A on the Gudrun field in the North Sea.
These were exploration wells number 13 and 14 in production licence 025. The drilling was carried out with the Deepsea Stavanger rig.
Preliminary estimates place the size of the discovery between 0.1 and 1.2 million standard cubic metres (Sm3) of recoverable oil equivalent in the intra-Draupne Formation, and between 0.4 and 1.3 million standard cubic metres (Sm3) of recoverable oil equivalent in the Hugin Formation.
The licensees will assess the well results in light of other prospectivity in the area.
The well’s primary exploration target was to prove petroleum in Late Jurassic reservoir rocks in the intra-Draupne Formation, as well as Middle Jurassic reservoir rocks in the Hugin Formation.
The secondary exploration target was to prove reservoir in Early Cretaceous reservoir rocks in the Rødby Formation.
Well 15/3-13 S encountered thin oil-bearing sandstone layers in the intra-Draupne Formation. The oil/water contact was not encountered. In the Hugin Formation, the well encountered a total of 92 metres of sandstone with poor reservoir properties.
Gas was encountered in two intervals, with respective thicknesses of 8 and 7 metres. The gas/water contact was not encountered.
