The promising plot is located near the village of Chornyi Potik, Nadvirna district, Ivano-Frankivsk oblast, 50 km to the south of the regional centre and 35 km west of Kolomyia. The site is located within the Sloboda Rungur anticline of the Boryslav-Pokut cover of the Pre-Carpathian Depression. At a distance of 5 km southeast of the village of Chornyi Potik to the mentioned anticline, oil deposits of the already developed Sloboda Rungur field have been timed. The first data on the production and use of oil for the needs of the population of Sloboda Rungur are known from 1770. It was extracted from wells up to 3 m deep. The first wells were drilled in 1875. In 1886, the field had 300 production wells with a depth of 200-350 m. The field existed until 1944 and was destroyed during World War II and was not restored due to the depletion of oil reserves. 357 896 tons of oil were extracted from the field between 1880 and 1941. Productive oil-saturated horizons are concentrated in sandstones, which lie in the upper part of the Stryi deposits of the Upper Cretaceous within the large complex of Sloboda Rungur anticline. However, a significant error was made in the interpretation of its structure by pre-war geologists. According to geological mapping data and wells materials, we have proved the presence of Oligocene-Eocene olistostroma in Miocene sediments. Previously, geologists mistakenly took olistostroma for indigenous rocks. Therefore, the results of our research have radically changed the geological model of the Sloboda Rungur structure. The old oil field was located within the elevated section of the fold near the exit of the Manyavian deposits of the Paleogene nucleus in the area of the Sloboda Rungur anticline. According to our data, the same elevated area is located northwest of the fishery near the village of Chornyi Potik. Therefore, in the apical part of the highest tectonic block, Sloboda Rungur anticline, we offer drilling of a 600 m deep exploratory well in order to search for new hydrocarbon deposits in Upper Cretaceous-Paleogene deposits
Received 25.10.2021
Revised 05.04.2022
Accepted 23.05.2022
[1] Selsky V.K. On the history of the oil industry in the lands of Hutsul and Pokuttya. Exploration and development of oil and gas fields. 2003. No 6. P. 134-141.[in Ukrainian]
[2] Novosiletsky R.M., Muromtsev A.S. Sloboda Rungurskoe oil field. UkrNIGRI funds. Topic No 441. Lviv, 1960. 196 p. [in Russian]
[3] Shlapinsky V.E., Gavryshkiv G. Ya., Gaevskaya Y.P. Oil and gas collectors in the Cretaceous-Paleocene deposits of the Skib cover of the Ukrainian Carpathians (north-western and central areas) and prospects for their oil and gas potential. Geological Journal. 2020. No.3. P. 47-64. [in Ukrainian]
[4] Glushko V.V., KulchitskyYa. O., Myshkin L.P. Report on a research topic: Analysis and generalization of geological and geophysical materials on the Precarpathian depression in order to identify patterns of placement of average reserves of oil and gas fields and determine main areas of work. LGU NIS (GR 22-80). Lviv, 1982. P. 299. Funds of DP "Zakhidukrgeologiya". [in Russian]
[5] Kuzovenko V.V. Study of reference sections of Mesocainozoic sediments of the southwestern margin of the Eastern European platform, the Precarpathian Depression and the northern slope of the Ukrainian Carpathians, compilation of a stratigraphic scheme and legends for large-scale geological surveys. 1983-1985 (in 3 volumes). Volume I (text). Lviv, 1985. 101 p. Volume III. Graphic applications. Lviv, 1985. 59 letters. Funds of DP "Zakhidukrgeologiya". [in Russian]
[6] Ladyzhensky N.R. Geology and gas and oil potential of the Soviet Precarpathians. Kyiv: Publishing House of the USSR Academy of Sciences, 1955. 383 p.[in Russian]
[7] Grachova O.V. Geological report on the results of structural exploration drilling in Sloboda Rungurskaya Square, conducted in 1956. Lvivneftegazrazvedka Trust. Lviv GCP. Lviv, 1957. 256 p. Funds of DP "Zakhidukrgeologiya". [in Russian]
[8] Substantiation of the directions of oil and gas prospecting in the deep horizons of the Ukrainian Carpathians. Edited by V.V. Glushko, S. S. Kruglov. Kiev: Naukova Dumka, 1977. 175 p. [in Russian]
[9] Glushko V.V., Lozynyak P.Yu., Petrashkevich M.I. New ideas about the structure and zoning of the Carpathian foredeep. Geology and geochemistry of fossil fuels. 1982. Issue 58. P. 19-31. [in Russian]
[10] Lozynyak P. Yu., Petrashkevych M.Y. Basic principles and scheme of tectonic zoning of the Ukrainian Carpathians. Bulletin of NTSh. 2007. Volume XIX. P. 50-62. [in Ukrainian]
[11] Shlapinskyi V. E. Pokuttia deep fault and its influence on tectonics and the oil- and gasbearing of the south-eastern segment of the Carpathians. Geodynamics, 2018. No 2 (25). P. 53–69.
[12] Bykhover N.A., Vologdin A.G., Matveev A.K. Geology and minerals of the Western regions of the Ukrainian SSR. Gosgeolizdat. Leningrad, 1941. 642 p. [in Russian]