On 4 October 2019 I3 Energy spudded exploration well 13/23c-10 (13/23c-SA01) targeting the Serenity prospect (licence P2358, block 13/23c). The company believes it to be a material extension of the Tain discovery, an unclosed oil-bearing structure located to the east of Serenity. The company used the âBorgland Dolphinâ (S/S) rig for operations. On 29 October 2019 I3 Energy announced that drilling operations were complete and the well had encountered oil within a sequence of Captain and Coracle sands from 4,720ft TVDSS to 5,252 ft TVDSS. The sequence included up to 165 ft of sand, with the net oil interval in the Captain consisting of 10 ft in high porosity (30%) sand. Preliminary results appear to be in line with pre-drill resource estimates of 197 MMbbls STOIIP. Based on pressure measurements, the OWC is estimated to be at 5,270 ft TVDSS trending with the Blake and Liberator fields. Should the discovery be connected to the Tain field, I3 Energy estimates that the mapped oil column could reach 622 ft TVD in the Captain sand, with oil quality of 32Â° API. On 8 November 2019 i3 Energy confirmed that the well has been plugged and abandoned.  Serenity was an amplitude supported prospect with an areal extent of 10 sq km located on the hanging wall of the Halibut Horst and is interpreted as a westerly extension of the Tain (Blake Terrace) discovery. The company believe Serenity offers a low cost and potentially high return exploration upside that could be tied back in to Liberator Phase I or incremental Phase II infrastructure.  Interest in P2358 is currently held solely by i3 Energy plc.
United Kingdom (Inner Moray Firth B. (Moray Firth Province)) Captain