Main types of reservoir rocks and their petrophysical properties of the western oil-gas region of Ukraine

Authors

  • I.M. Kurovets Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • R.-D.A. Kucher Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • Yu.Ye. Lysak Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • S.P. Melnychuk Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • S.O. Mykhalchuk Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • P.S. Chepusenko Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine

DOI:

https://doi.org/10.24028/gj.v47i2.322544

Keywords:

Western oil-gas region of Ukraine, types of reservoir rocks, core, flysh, petrophysical properties

Abstract

The effectiveness of exploration of hydrocarbon deposits, selection of optimal discovery technologies, and their development largely depend on the reliable forecast of reservoir rock types and their petrophysical properties. Here, we review the findings for lithological-stratigraphic complexes of the Western oil-gas region of Ukraine and establish the main types of reservoir rocks and their petrophysical properties for the Volyn-Podillya edge of the East European Platform, the Carpathian Foredeep (Outer and Inner zones), and the Transcarpathian depression. Methods included an analysis of the available geological-petrophysical information on lithological-petrographical, structural-textural peculiarities and petrophysical properties of deposits; laboratory investigations of cores; mathematical-statistical processing of data; study of the influence of thermobaric conditions and compound stressed state of the section upon the formation of different types of reservoir rocks and their capacity-filtration parameters; and construction of standard geological-petrophysical sections of the promising producing areas. According to the findings, in the sedimentary complex, there are reservoir rocks of different types (from low-porous consolidated? granular to composite porous-fractured-cavernous) due to the influence of sedimentary, geotectonic, thermobaric, geothermal, and other factors influencing their formation.

References

Krupsky, Yu.Z., Kurovets, I.M., Senkovsky, Yu.M., Mykhailov, V.A., Chepil, P.M., Drygant, D.M., Shlapinsky, V.Ye., Koltun, Yu.V., Chepil, V.P., Kurovets, S.S., & Bodlak, V.P. (2014). Unconventional sources of hydrocarbons of Ukraine: in 8 books. Book 2. Westerngas-bearingregion. Кyiv: Niка-Centre, 400 р. (in Ukrainian).

Kurovets, I., Hrytsyk, I., Prykhodko, O., Chepusenko, P., Kucher, Z., Mykhalchuk, S., Melnychuk, S., Lysak, Yu., & Petelko, L. (2021).Petrophysical models of deposits of the menilite suite of the oligocene flysh of the Carpathians and the Precarpathian deep. Geology & Geochemistry of Combustible Minerals, (3-4), 33―43. https://doi.org/10.15407/ggcm2021.03-04.033 (in Ukrainian).

Kurovets, I., Zubko, O., Hrytsyk, I., Prykhodko, O., & Kucher, R.-D. (2023). Peculiarities of the formation of capacity-filtration properties of reservoir rocks of the Inner zone of the Carpathian Foredeep. Materials of Intern. Sci. Conf. «Geophysics and geodynamics: prediction and moniroring of geological medium», Lviv, 10Ї12 October 2023 (pp. 109Ї112) (in Ukrainian).

Kurovets, I.M., Lysak, Yu.E., Chepusenko, P.S., Mykhalchuk, S.O., & Kucher, R.-D.A. (2019). Geological-petrophysical characteristic of silurian deposits of the Volyn-Podillya edge of the East-European platform. Geology & Geochemistry of Combustible Minerals, (4), 17―31. https://doi.org/10.15407/ggcm2019.04 (in Ukrainian).

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Artym, I.V., Kurovets, S.S., Zderka, T.V., Yarema, A.V., & Kurovets, I.M. (2019). Development of the rocks fracturing model on the Carpathian region example. Paper presented at the 18th International Conference Geoinformatics: Theoretical and Applied Aspects, EAGE 13−16 may, 2019, Kyiv, Ukraine. Retrieved fromhttps://www.earthdoc.org/content/papers/10.3997/2214-4609.201902064?crawler=true.

Kurovets, I., Prytulka, H., Shyra, A., Shuflyak, Yu., & Peryt, T.M. (2011). Petrophysical properties of the Pre-Miocene rocks of the Outer zone of the Ukrainian Carpathian Foredeep. Annales Societatis Geologorum Poloniae, 81(3), 363―375.

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Published

2025-04-07

How to Cite

Kurovets, I., Kucher, R.-D., Lysak, Y., Melnychuk, S., Mykhalchuk, S., & Chepusenko, P. (2025). Main types of reservoir rocks and their petrophysical properties of the western oil-gas region of Ukraine. Geofizicheskiy Zhurnal, 47(2). https://doi.org/10.24028/gj.v47i2.322544

Issue

Vol. 47 No. 2 (2025)

Section

Conferences

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Copyright (c) 2025 І.М. Куровець, Р.Д. Кучер, Ю.Є. Лисак, С.П. Мельничук, С.О. Михальчук, П.С. Чепусенко

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