Drilling started 13 Apr â19 in the Yufutsu field area off Hidaka coastline of Hokkaido, NE Japan, WD 1,070m, TD 2,530m, gas encountered + tested, Ensco 8504 SS (soon to be re-named Valaris 8504). Some background from GEPS.
Hidaka 1 explo, completed by JAPEX as part of the offshore exploration project commissioned by the Agency for Natural Resources and Energy of the Ministry of Economy, Trade and Industry (ANRE in early July 2019, gas disc. a production test was run on a gas reservoir "where indications of natural gas existence was recognized, and achieved stable gas production. WD=1070 m with PTD= 2000 m below seabed.