7018/5-1

General

Well 7018/5-1 was drilled to test the Spissa prospect in the Troms-Finmark Fault Complex in the southwestern Barents Sea. The primary objective was to evaluate the reservoir quality and hydrocarbon potential of the Late Triassic to Middle Jurassic Realgrunnen Subgroup.

Operations and results

Due too poor seismic imaging in the area two pilot wells were drilled prior to the exploration well to obtain more detailed data on the shallow stratigraphy in the area and for safety reasons. Pilot 7018/5-U-7was drilled off-prospect for stratigraphic information and TD'd at 719 m in the Cretaceous Knurr Formation. Pilot 7018/5-U-8 was drilled on-prospect to TD at 593 m in the Cretaceous Kolje Formation to evaluate possible shallow gas hazards. No shallow gas or water flow was observed.

Wildcat well 7018/5-1 was spudded with the semi-submersible installation West Hercules on 3 November 2020 and drilled to TD at 1130 m in the Middle Jurassic Stø Formation. Operations proceeded without significant problems. The well was drilled with spud mud down to 591 m and with Glydril mud from 591 m to TD.

The well encountered the Stø Formation at 910 m, with good reservoir properties, however water filled. Good oil shows in the form of odour, direct and cut fluorescence were recorded on SWC's in the upper part of Stø down to 937 m while more patchy fluorescence and cut without odour was recorded at 1031 to 1034 m below a claystone layer within the Stø Formation. Apart from the shows in the Stø Formation faint hydrocarbon odour was noted in the lower part of Hekkingen Fm and down into the Fuglen Formation.

No conventional cores were cut. Twenty-five side-