THERMAL MATURITY OF DEVONIAN ROCKS IN TERMS OF THEIR LITHOLOGICAL-FACIES AND AGE AFFILIATION. NORTHERN AND SOUTHERN SIDES OF THE DNIPRO-DONETS BASIN

Ivan KARPENKO; Anastasiia CHUPRYNA; Oleksii KARPENKO

doi:10.17721/1728-2713.108.03

Authors

Ivan KARPENKO M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the National Academy of Sciences of Ukraine; NJSC "Naftogaz of Ukraine" https://orcid.org/0000-0001-7753-9010
Anastasiia CHUPRYNA Taras Shevchenko National University of Kyiv, Ukraine https://orcid.org/0000-0001-9857-3533
Oleksii KARPENKO Taras Shevchenko National University of Kyiv, Ukraine https://orcid.org/0000-0002-5780-0418

DOI:

https://doi.org/10.17721/1728-2713.108.03

Keywords:

Devonian, kerogen, pyrolysis, cluster analysis, hydrocarbons, Dnipro-Donets basin

Abstract

Background. The production of hydrocarbons (HC) in open fields is decreasing, and the fields that were discovered in recent years, as a rule, are small in terms of reserves and can no longer provide a resource base for its expansion. An analysis of the experience of leading oil and gas companies shows that a significant expansion of the resource base and the discovery of significant reserves of hydrocarbon deposits can be obtained through the use of modern exploration technologies, which actively use in their arsenal the modeling of hydrocarbon systems in the studied territories. Carboniferous and Upper Devonian deposits remain the most promising stratigraphic complexes for the search for new deposits of explosives within the Eastern region of Ukraine.

Methods. Mathematical statistics methods were used to create model constructions that allowed meaningful analysis of the original geological and geochemical information. The initial data were the results of laboratory studies by the pyrolysis method (Rock-Eval) of rock samples from search and exploration wells of the southern and northern sides of the Dnipro-Donets basin (DDB). In terms of lithology, the core samples were argillites (shales) – the vast majority, siltstones, sandstones, and limestones.

Results. An important result of this study is that the feature of the spatial distribution of the main parameters of kerogen organic matter has been established, depending on the depth of the Devonian oil and gas source rocks, their age, as well as the location of the wells from which the core was taken, on the Northern or Southern sides of the DDB. Using the methods of mathematical statistics on the basis of cluster analysis, the classification of rock samples with a clay composition relative to the prevailing type of organic matter was performed based on the data of laboratory studies on the Rock-Eval apparatus.

Conclusions. Quite high concentrations of organic matter in a significant number of studied samples (mainly in shales and limestones) were found at different depths, which are primarily corrected by the age of the Upper Devonian deposits. The regularities of changes in Tmax – the temperature of the maximum yield of hydrocarbons during kerogen cracking, depending on the depth of the location of rocks, which are distinct on the Southern and Northern sides of the DDB, have been established. This indicates different paleotectonic activity of the specified structural-tectonic elements in the post-Devonian period. On the South side, clay formations with a high kerogen content and high Tmax values are hypsometrically higher than on the Northern side of the Dnipro-Donets depression.

References

Hunt, J. M. (1979). Petroleum Geochemistry and Geology. W. H. Freeman and Company.

Ivanova, A. V., & Gavryltsev, V. B. (2021). Paleogeothermal and paleotectonic reconstructions based on vitrinite thermometry data (on the example of the upper paleozoic deposits of the Dnieper-Donets depression and adjacent areas of Donbass). Geofizicheskiy Zhurnal, 43(3), 82–105. [Иванова, А. В., Гаврильцев, В. Б. (2021). Палеогеотермические и палеотектонические реконструкции по данным витринитовой термометрии (на примере верхнепалеозойских отложений Днепровско-Донецкой впадины и прилегающих частей Донбасса). Геофизический журнал, 43(3), 82–105.] https://doi.org/10.24028/gzh.v43i3.236382

Karpenko, O., & Tynik, O. (2018). Specification border jumping catagenetic changes rocks on examples individual deposits DDD hydrocarbons. Scientific Bulletin of Taras Shevchenko Kyiv National University. Geology, 3(82), 29–35. [Карпенко О., Тунік О. (2018). Уточнення меж стрибкоподібних катагенетичних змін порід на прикладі окремих родовищ вуглеводнів ДДЗ. Науковий вісник КНУ імені Тараса Шевченка. Сер. Геологія, 3(82), 29–35.]

Lukin, O. (2006). Devonian of the Dnieper-Donets avlakogen (tectonicsedimentary complexes, formations, genetic types of deposits and lithogeodynamics). Geological journal, 2/3, 26–46. [Лукін, О. Ю. (2006). Девон Дніпровсько-Донецького авлакогену (тектоно-седиментаційні комплекси, формації, генетичні типи відкладів та літогеодинаміка). Геологічний журнал, 2/3, 26–46.]

Lupoi, J. S., Fritz, L. P., Parris, T. M., Hackley, P. C., Solotky, L., Eble, C., & Schlaegle, S. (2017). Assessment of Thermal Maturity Trends in Devonian-Mississippian Source Rocks Using Raman Spectroscopy. Limitations of Peak-Fitting Method. Front. Energy Res., 5, 24. https://doi.org/10.3389/fenrg.2017.00024

Mack, S. A., & Engel, M. H. (1993). Organic Geochemistry: Principles and Methods. Plenum Press.

Menning, M., Alekseev, A. S., Chuvashov, B. I., Davydov, V. I., & Devuyst, X. (2006). Global time scale and regional stratigraphic reference scales of Central and West Europe, East Europe, Tethys, South China, and North America as used in the Devonian-Carboniferous-Permian Correlation Chart 2003 (DCP 2003). Palaeogeography, Palaeoclimatology, Palaeoecology, 240(1–2), 318–372. https://doi.org/10.1016/j.palaeo.2006.03.058

Menning, M., Alekseev, A. S., Chuvashov, B. I., Davydov, V. I., & Devuyst, X. (2006). Oil/gas-source rock correlations in the Dniepr-Donets Basin (Ukraine): New insights into the petroleum system. Marine and Petroleum Geology, 67, 720–742. https://doi.org/10.1016/j.marpetgeo.2015.07.002

Mykhaylov, V., & Karpenko, O. (2020). Prospects non-traditional oil and gas capacity Southern utility room zones Dnipro-Donetsk depressions. Scientific Bulletin of Taras Shevchenko Kyiv National University. Geology, 1(88), 53–60. [Михайлов, В., Карпенко, О. (2020). Перспективи нетрадиційної нафтогазоносності Південної прибортової зони Дніпровсько-Донецької западини. Науковий вісник КНУ імені Тараса Шевченка. Сер. Геологія, 1(88), 53–60.]

Mykhailov, V. A., Vakarchuk, S. G., Zeykan, O. Yu., Kasyanchuk, S. V., Kurovets, I. M., & Vyzhva, S. A. (2014). Unconventional sources of hydrocarbons of Ukraine. Monograph. Book 8: Theoretical substantiation of unconventional hydrocarbon resources of sedimentary basins of Ukraine. "Nika Center". [Михайлов, В. А., Вакарчук, С. Г., Зейкан, О. Ю., Касіянчук, С. В., Куровець, І. М., Вижва, С.А. (2014). Нетрадиційні джерела вуглеводнів України. Кн. 8. Теоретичне обґрунтування ресурсів нетрадиційних вуглеводнів осадових басейнів України. Ніка-центр.]

Peters, K. E., Walters, C. C., & Moldowan, J. M. (2005). The Biomarker Guide: Biomarkers and Isotopes in the Environment and Human History. Cambridge University Press.

Ratnayake, A. S., Kularathne, C. W., & Sampei, Y. (2018). Assessment of hydrocarbon generation potential and thermal maturity of the offshore Mannar Basin, Sri Lanka. Journal of Petroleum Exploration and Production Technology, 8, 641–654. https://doi.org/10.1007/s13202-017-0408-1

Sachsenhofer, R., Popov, S., Coric, S., Mayer, J., Misch, D., & Morton, M. (2018). Paratethyan petroleum source rocks: an overview. Journal of Petroleum Geology, 41(3), 219–245. https://doi.org/10.1111/jpg.12702

Stryzhak, V. P., & Korzhnev, P. M. (2012). Peculiarities of the Devonian deposits structure and oil and gas capacity of the northwestern part of Dnieper-Donets avlakogen. Tectonics and Stratigraphy, 39, 43–56. [Стрижак В. П., Коржнев П. М. (2012). Особливості будови та нафтогазоносності девонських відкладів північно-західної частини Дніпровсько-Донецького авлакогену. Тектоніка і стратиграфія, 39, 43–56.]