Volga Gas said Wednesday the Evlano-Livenskiy horizon at VM#1 on the the Vostochny-Makarovskoye license area has proved to be considerably more promising than had originally anticipated.
It added it's found more than 200 million of gross pay in the Bobrikovsky and Evlano-Livenskiy horizons and good production rates were observed in both.
The original discovery well at the Evlano-Livenskiy horizon drilled in 1989-90, by LUKoil-Nizhnevolzhskneft encountered a 47 million gross pay zone with gas down to 2,322 million (TVD MSL) in the Evlano-Livenskiy horizon.
The gas-water contact was not established.
The gross pay zone has now been confirmed to exceed 160 million, in the Evlano-Livenskiy horizon, Volga said.
Due to the absence of impermeable shale zones in the reservoir, gross and net pay are almost identical.
It said the well has been cased and is about to be perforated. Cased hole testing is expected to be conducted over a number of months.
Volga Gas also identified the Eletsky layer at 2091-2107 million (TVD MSL) which is gas bearing. During open hole testing it flowed at 2mcm/day (71mcf/day). However, further testing will be required to identify the potential of this layer after acid stimulation.
The current BK Eurasia rig is contracted to drill a further four more production wells once it has finished with completion on VM#1.
It added the Bobrikovsky horizon was cored and tested between 1587 million and 1623 million. The gross pay zone is confirmed at 40 million. The open hole test yielded 40-70 mcm/day (1413-2472mcf/day) of gas, the company said.