Drilled to a total depth of 944.5 metres in Palaeozoic strata, the well intersected a 10-metre thick, porous sand of probable Miocene Karpat age - the primary target – at an 890m drill depth, the company said.
On Tuesday morning, preparations were underway to run a velocity survey.
Carpathian said Ja-11 targeted the same Karpat Sandstone Reservoir as the Janovice-3a gas discovery made in 2004, 1.5km to the northwest.
The latest prospect was estimated to contain a potential 6.5 billion cubic feet of gas.
Participants in Janovice (Ja11) and (Ja3a) are: Nord Gas Ostrava s.r.o.(60% - wholly owned subsidiary of Carpathian) and Unigeo a.s. (40%).
