Drilled by the Vantage Titanium Explorer drillship, the well encountered a 220-ft (67-m) gross gas column in the primary target with high-quality reservoir in line with pre-drill expectations. The well was deepened to test a secondary high-risk oil target and encountered high-quality, but water-wet reservoirs with weak oil shows.
The Silenus East-1 well has discovered an estimated mean recoverable 405 bcf of gas from the upper and deeper reservoirs, and has significantly de-risked a family of similar surrounding prospects such that the total mean recoverable gas in the broader Silenus area including this discovery is now estimated at c.1.2 tcf. Following the Silenus East-1 and Tonel North-1 well results, the total estimated mean recoverable resources for block R, including the discoveries and adjacent derisked volumes, are now 3.4 tcf.
The company stated that this play remains of interest and will be further evaluated.
The drillship has now moved to complete the Fortuna-2 appraisal well where the company will conduct the first flow test in block R.