Features of the temperature regime of the crust’s upper horizons in oil-and-gas bearing zones of the west of Ukraine

Authors

  • A.V. Nazarevych Carpathian Branch of the S. Subbotin Institute of Geophysics of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • L.V. Skakalska Carpathian Branch of the S. Subbotin Institute of Geophysics of National Academy of Sciences of Ukraine, Lviv, Ukraine, Ukraine
  • L.Ye. Nazarevych S. Subbotin Institute of Geophysics of National Academy of Sciences of Ukraine, Department of Seismicity of the Carpathian Region, Lviv, Ukraine, Ukraine

DOI:

https://doi.org/10.24028/gj.v47i2.322551

Keywords:

western region of Ukraine, temperature regime, upper horizons of the crust, oil-and-gas bearing zones, temperature corrections, predicting the oil and gas content of wells

Abstract

The paper analyzes the features of the temperature regime of the upper crustal horizons of the oil-and-gas bearing zones of western Ukraine based on the published and archival thermal logging data. It was established that the characteristic temperatures of rock horizons at depths of 1000, 2000, 3000, and 4000 m in the Forecarpathian region are 30±5, 50±10, 70±15, 90±20 °С, respectively. Average vertical temperature gradients here are characterized by values of 0.022±0.01 °С/m. In the Transcarpathian region, the characteristic temperatures of rock horizons at depths of 1000, 2000, and 3000 m are mostly within 55±10, 100±20, and 145±25 °С, respectively. Average vertical temperature gradients here are characterized 0.05±0.015 °С/m. The difference in deep temperatures between the Transcarpathians and the Forecarpathians is caused by the high deep heat flow in Transcarpathians induced by the influence of asthenolite from under Pannonia, while in Forecarpathians, which is tectonically mainly the southwestern edge of the East European Platform, the thermal regime is significantly calmer, typical for platforms. The findings will be compared with the features of the geodynamic regime of the corresponding zones and also used to establish and take into account temperature corrections to the petrophysical characteristics of the reservoir rocks for predicting the oil and gas capacity of well sections.

References

Atlas of oil and gas deposits of Ukraine. In six volumes. Vol. IV—V. Western oil and gas region. (1998). Kyiv: UNGA, 709 p. (in Ukrainian).

Kurovets, I.M., Senkovskyi, I.M., Mykhaylov, V.A. et al. (2014). Unconventional sources of hydrocarbons of Ukraine. In the 8th book. Book II. Western oil and gas region. Kyiv: Nika Center, 400 p. (in Ukrainian).

Loktev, A.A. (2019).Geological factors of the gas capacity of the Transcarpathian depression. Candidate’s thesis. Kyiv, 155 p. (in Ukrainian).

Nazarevych, A.V. (2018). To the problem of increasing the depth, sensitivity and accuracy of monitoring and oil and gas prospecting well geothermal research. Geodynamics, (1), 60—79. https://doi.org/10.23939/jgd2018.01.060 (in Ukrainian).

Nazarevych, A.V., Nazarevych, L.Ye., Skakalska, L.V., & Nazarevych, R.A. (2024). Geodynamics and temperature regime of the crust of western Ukraine and energy resources. Materials of the ninth international scientific and practical conference «Subsoil use in Ukraine. Prospects for investment». October 7—11, 2024, Lviv, Ukraine (pp. 290—295). Kyiv: SCR (in Ukrainian).

Osadchyi, V.G., Krupskyi, Y.Z., Kurovets, I.M., Hrytsyk, I.I., & Prykhod’ko, O.A. (2008). Geothermal conditions of the Folded Carpathians and the Transcarpathian depression. Scientific bulletin of IFNTUOG, (1), 16—21 (in Ukrainian).

Skakalska, L. (2024). Estimates of the influence of temperature on the petrophysical and reservoir characteristics of rocks. A collection of articles on the materials of the XXXV scientific session of the Shevchenko Scientific Society (March 20, 2024) (pp.45—48). Lviv: Rastr-7 (in Ukrainian).

Skakalska, L.V., & Nazarevych, A.V. (2023). Method of predicting oil and gas content of wells sections. Patent application a 2023 02724 dated 06/05/2023 (in Ukrainian).

Tretyak, K.R., Maksymchuk, V.Yu., & Kutas, R.I. (Eds.). (2015). Modern geodynamics and geophysical fields of the Carpathians and adjacent territories. Lviv: Lviv Polytechnic Publ., 420 p. (in Ukrainian).

Kováčiková, S., Logvinov, I., Nazarevych, A., Nazarevych, L., Pek, J., Tarasov, V., & Kalenda, P. (2016). Seismic activity and deep conductivity structure of the Eastern Carpathians. Studia Geophysica et Geodaetica, 60, 280—296. https://doi.org/10.1007/s11200-014-0942-y.

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Published

2025-04-07

How to Cite

Nazarevych, A., Skakalska, L., & Nazarevych, L. (2025). Features of the temperature regime of the crust’s upper horizons in oil-and-gas bearing zones of the west of Ukraine. Geofizicheskiy Zhurnal, 47(2). https://doi.org/10.24028/gj.v47i2.322551

Issue

Vol. 47 No. 2 (2025)

Section

Conferences

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Copyright (c) 2025 А.В. Назаревич, Л.В. Скакальська, Л.Є. Назаревич

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