document: Wintershall Dea has been unsuccessful with its appraisal of the 2018 Balderbra gas discovery in PL 894. 6604/5-2 S was spudded on 22 January 2020 using the âScarabeo 8â S/S. It targeted three Upper Cretaceous Springar Formation sandstones, with the first mapped at 3,633 m (3,389 m TVD), and was also designed to locate the GWC. However, although a total of 210 m of Springar Formation was present in the well (with 140 m of this being poor quality sandstone) there were only traces of gas and the well is classed as a dry hole. Pressure communication with the discovery was also not established. Recoverable reserves for Balderbra have been reduced from 247-671 Bcfg plus 6-19 MMbc (at discovery) to 106-283 Bcfg plus 1-6 MMbc which, according to partner Lundin, is not considered commercially viable. On 26 February 2020 the well was abandoned, with TD at 4,155 m (3,816 m TVDSS) in the Springar Formation.  Two sidetracks had been planned for 6604/5-2 S â one to the southwest (TD 4,120 m, 3,808 m TVD) and the other to the east (TD 4,258 m, 3,878 m TVD) â and Wintershall Dea had also intended to carry out two DSTs.  Balderbra discovery well 6604/5-1 targeted a robust structural closure (Maastrichtian sand drape over older tilted fault blocks) with an amplitude anomaly between the Gullris (6604/2-1) and Gro (6603/12-1) wells. A gross gas column of 190 m across three separate sandstones totalling 90 m was encountered in the Springar Formation. The upper sandstone unit is thin with variable permeability, the middle sand is thicker (56 m gross) and laminated with 21% porosity, and the lower sand has a gross thickness of 129 m and 15% porosity. The three units are not in pressure communication and no GWC was encountered. The find could be developed as a tie-back to Aasta Hansteen.   Interest in PL 894, subject to completion of a deal, is held by Wintershall Dea Norge AS (30% + operator), Equinor Energy AS (40%), Petoro AS (20%) and Lundin Norway AS (10%).
summary: 6604/05-02 S (BalderbrÃ¥) appr. (Wintershall Dea 40% op, Equinor 40%, Petoro 20%) in PL 894, 15km E. of discovery, P&A dry, encountered only traces of gas across 3 intervals spanning 210m in the U. Cretaceous Springar Fm, of which 140m of sst was of poor reservoir quality and has significantly downgraded the resource estimate for Balderbra g&c disc.The GWC was not found.