Chrysaor Norge AS plugged and abandoned a non-commercial gas discovery in North Sea production license 973.
Well 15/12-25 lies about 35 km southwest of the Sleipner Øst installation in the central part of the North Sea and 250 km southwest of Stavanger (OGJ Online, Mar. 17, 2021).
The well is the first exploration in the license and was drilled by the COSL Innovator semisubmersible drilling rig in 86 m of water to a vertical depth of 2,795 m subsea. The objective was to prove petroleum in Palaeocene Age reservoir rocks. It was terminated in the Ty formation.
The well encountered a 40-m gas-condensate column in Ty, of which about 30 m in sandstone were of good reservoir quality. Gas-water contact was not encountered.
Preliminary calculations estimate the size of the discovery at 1-2 million standard cu m oil equivalent in place. Collected pressure data show that the reservoir is depleted. The well was not formation-tested, but extensive data acquisition and sampling were carried out.
The drilling rig will continue drilling wildcat well 15/12-26, which is also in PL973.
Chrysaor is operator of PL973 (50%) with partners OKEA (30%) and Petoro AS (20%).