Analysis of geothermic parameters of oil-and gas deposits of the central part of the Dnieper-Donets depression
DOI:
https://doi.org/10.24028/gzh.0203-3100.v42i3.2020.204705Keywords:
Dnieper-Donets depression, heat flow, temperature gradient, hydrogeologic inversionAbstract
Distribution of geothermic parameters in the central part of the DDD in the joint of Lokhvitsa and Izyum blocks has been considered in the paper. Geothermic gradient and heat flow have been calculated according to the results of measurements conducted directly in the process of drilling.
It has been found that geothermic gradient varies both with depth and area even within the limits of one deposit. Comparison with geologic cross-section shows that the leaps of gradient are connected with crossing of stratigraphic (and lithologic) borders and the changes of temperature are noticed while crossing the roof of hydrocarbon deposits predominantly in the Lower Carboniferous. In most cases they are positive. In the Devonian volcanogenic-sedimentary stratum in considerable cases negative leaps appear as well. For calculation of heat flow (HF) only the measurements were used conducted in the deep holes crossing hydrocarbon deposits. Two modes of HF distribution are fixed in many deposits that differ by 5—10 units possibly explainable by hydrogeologic isolation of different blocks of the same deposit. The leaps of gradient and fluctuations of HF values may be produced by diffluence of hydrothermal solution in porous layers of sedimentary stratum. In the Machekha gas deposit a coincidence is fixed for the depth of gradient growth and the depth of registration of hydrogeologic inversion and a zone of anomalously high pressure in the stratum.
Comparison with a map of HF, plotted by the results of temperature measurements in the wells with established heat regime demonstrates overall coincidence of HF distribution.
The margin of the Lokhvitsa and Izyum blocks is a zone of changes of many physical characteristics of the basement and shows itself in the majority of geophysical fields. In the HF map it is marked out with the increase of average values in the northern and southern sides of the DDD and with their decrease in its central part. While increased values of HF are distributed both in the west and in the east of DDD, then the similar negative anomalies are represented only in this zone.
References
Arsiry, Yu. A., Bilyk, A. A., & Blank, M. I. (Eds.). (1984). Atlas of the geological structure and oil and gas potential of the Dnieper-Donets depression. Kiev: Edition of the Ministry of Geology of the USSR, 190 p. (in Russian).
Gordienko, V. V. (Ed.). (2006). Dnieper-Donets Basin (geophysics, deep processes). Kiev: Corwin Press, 144 p. (in Russian).
Kutas, R. I. & Gordienko, V. V. (1971). Thermal field of Ukraine. Kiev: Naukova Dumka, 141 p. (in Russian).
Lukin, A. E. (1997). Lithological and dynamic factors of oil and gas accumulation in aulacogenic basins. Kiev: Naukova Dumka, 224 p. (in Russian).
Starostenko, V. I., Pashkevich, I. K., Makarenko, I. B., Kuprienko, P. Ya., & Savchenko, A. S. (2017). Geodynamic interpretation of the geological and geophysical heterogeneity of the lithosphere of the Dnieper-Donets depression. Dopovidi NAN Ukrainy, (9), 84—94 (in Russian).
Starostenko, V. I., Rusakov, O. M., Pashkevich, I. K., Kutas, R. I., Orlyuk, M. I., Ku¬p¬-
ri¬en¬ko, P. Ya., Makarenko, I. B., Mak¬sim¬chuk, P. Ya., Kozlenko, Yu. V., Kozlenko, M. V., Le¬go¬staeva, O. V., Lebed, T. V., & Savchenko, A. S. (2015). Tectonics and hydrocarbon po¬tential of the crystalline basement of the Dnie-per-Donets depression. Kiev: Galaktika, 211 p. (in Russian).
Usenko, A. P. (2013). Analysis of geothermal parameters at oil and gas fields of the Dnieper-Donetsk basin. Geodynamika, (2), 347—349 (in Ukrainian).
Usenko, A. P. (2014). Dependence of the geothermal gradient on the location of hydrocarbon deposits in the Dnieper-Donetsk basin. Dopovidi NAN Ukrainy, (12), 106—112 (in Ukrainian).
Usenko, A. P. (2017). Distribution of thermal characteristics in the central part of the south-western side of the Dnieper-Donetsk depression. Dopovidi NAN Ukrainy, (6), 58—61 (in Ukrainian).
Usenko, A. P. (2019). Distribution of thermal characteristics in the north-western part of the axial zone of the Dnieper-Donetsk basin. Dopovidi NAN Ukrainy, (7), 44—51 (in Ukrainian).
Usenko, A. & Usenko, O. (2018). Analysis of geothermal parameters in the northwestern part of the DDB. LAP LAMBERT Academic Publishing, 141 p. (in Russian).
Usenko, O. V. (2002). Heat flow and modern activation of the Donetsk basin. Geofizicheskiy zhurnal, 24(5), 102—111 (in Russian).
Shestopalov, V. M., Lukin, A. E., Zgonnik, V. A., Makarenko, A. N., Larin, N. V., & Boguslavskiy, A. S. (2018). Essays on the degassing of the Earth. Kiev: Itek servis, 632 p. (in Russian).
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Geofizicheskiy Zhurnal
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
