Chornukhy and Bilousivska fields were discovered in 50’s and 70’s. After short exploitation periods of discovered formations, both fields were considered as non-perspective and were conserved.
In 2001 Company obtained Special Permit for exploration and pilot development of Bilousivka-Chonukhy area. On the first stage, the G&G data of the fields was collected and re-interpreted and future work plan was established.
Thereby, during 2003-2011 Company performed re-entering works in old wells BC#7, 9, 13, 17, 110, 111 and two new wells were drilled BC#116-A and Ch#3-A. Hydrocarbon inflow was received from these wells, but not all the wells were commissioned due to technical problems.
During 2007-2008 Company performed 3D seismic and its interpretation. In 2007 a Gas Plant was built on Bilousivska area for the treatment of gas and condensate.
In 2011 Company obtained license for commercial development of Bilousivska-Chornukhy area for the period of 20 years and continuing activity. Currently exploitation fund consists of 4 wells on this area.
Formations within license area presented in terrigene sediments of low and high Visean (production horizont are from V-17 to V-26). Tournaisian sediments and Visean “carbonate rock” are considered as perspective too. Traps on fields are mainly lithological type, but within Chornukhy field they are structural. In relation to geological structure, Chornukhy field is an anticline high whilst Bilousivske field is presented as structural nose. Depths of occurrence of production horizons vary from 3000 m to 4500 m.