Naftogaz Group has put into production another ultra-deep (6,000 m) well No. 208 at the Berezivske field in Kharkiv region. It will provide an increase in the proven natural gas reserves by over 350 million cubic meters.

This is the second exploration well in the field that has shown a high result and provided an increase in proven reserves. The daily flow rate of the well is 260 thousand cubic meters of natural gas.

“Without an increase in the resource base, it is impossible to maintain and, moreover, to increase gas production. Therefore, amid the crisis that limited our investment opportunities, we are focusing on increasing hydrocarbon reserves. The findings of geological studies show that the historical gas giants - Shebelynske, Krestyshchenske and other fields - have significant potential at depths of more than 5-6 kilometers. Therefore, follow-up exploration of deep deposits is one of the key projects of our division. Two high-rate wells at the Berezivske field confirm that we are moving in the right direction,” said Oleksandr Romanyuk, Director of the Upstream Division of Naftogaz.

Sanzhar Zharkeshov, Deputy Head of the Upstream Division, noted: “To explore areas that will allow increasing the reserves, we will continue to improve facilities and competencies of our research and development center. This will increase the efficiency of deep drilling projects with a high level of risk. We plan to strengthen Naftogaz's knowledge base and analysis of geological information using modern software products and new hardware.”

To prospect the promising horizons, the company carried out 3D seismic survey and adjusted the geological model of the Berezivske field. It consists of two structural elements: West Berezivske and Berezivske upthrusts. Well No.206 with a depth of 6,100 meters, which was put into production in February this year, confirmed the productivity of gas-bearing formation within the West Berezivske fold.

Well No. 208 with a depth of 6,000 meters, which was completed in May, is located on the Berezivske upthrust. The increase in proven reserves based on the results of this well drilling exceeds 350 million cubic meters of natural gas. The work was performed by the drilling crew of Ukrburgas, which is part of the Technical Support Division.

The results of drilling two exploration wells will allow planning further work on follow-up exploration of the Berezivske field.