Project Profile
Location: Brodina Block
The Brodina Block contains the Voitinel Gas Discovery, made by Europa and its partners in 2009, and the Putna conventional oil discovery subsequently identified by San Leon Energy.
The Voitinel-1 exploration well encountered gas in two sandstone intervals at around 1400 and 1650m depth. The deeper of these tested dry gas at flow rates of 3 mmscfpd, but appeared to be close to a reservoir boundary, limiting the ability to maintain flow for long periods. A fracture stimulation was undertaken which led to accessing past the boundary for more sustainable flow. The Operator, Aurelian, estimated that approximately 6bcf could be produced from each vertical well in this reservoir.
The current resource estimate for the \'Greater Voitinel\' play, including the yet undrilled Solca structure, is up to 250bcf recoverable (70 bcf gross).
The Voitinel play extends some 40km to the south of the well, which was drilled close to the northern edge of the structural trend, having been proven by recent wells drilled by Romgaz at Paltinu. One well sustained gas flow rates of 5mmscfpd for one week, indicating that the reservoir in the southern part of the play could be better quality than in the first well.
In November 2011, partner Europa Oil & Gas announced that the Horodnic-1 well drilled to test Sarmartian-Badenian sandstones had encoutnered 40 metres of interbedded sandstones and mudstones with some gas shows. However, wireline logs indicated there was no commercial hydrocarbon bearing interval encountered. Subsequently, in January 2012, Europa announced it would withdraw from the Brodina licence, incurring a write-off of around GBP4 million. According to Romgaz’ 2015 report, the Brodina consortium completed only 11.03% of the scheduled investments in 2015. In September 2012, San Leon, which had merged with Aurelian, said the consortium had collected 125 km of line seismic over the Magneto-Telluric formations with Prospectiuni SA. Inversion results confirmed the presence of sub-thrust structures in the target area. San Leon planned to acquire 3D seismic in 2013 to drill the Putna conventional oil prospect in Brodina, and the pair were reportedly preparing for a fresh evaluation of the Brodina area in 2016.
Operators:
Aurelian Oil & Gas plc.: Operator with 50% interest
Romgaz: 50% interest