Features of changes in the physico-chemical properties of oils in connection with great depths
https://doi.org/10.18599/grs.2021.3.13
Abstract
A study was made of changes in the physicochemical properties and occurrence conditions of oils depending on the depth, which made it possible to clarify the quantitative patterns of changes in the physico-chemical properties of oils at different depths and to reveal features of the properties of poorly studied deep-seated oils. The studies used information on more than 21000 oil samples from 167 oil-bearing basins of the world, obtained from the database on the physico-chemical properties of oils. It has been shown that in different oil-bearing basins the density and viscosity of oils decreases with depth. The content of sulfur, resins and asphaltenes also decreases with depth, and the content of light fractions and oil gas increases. The features of the physico-chemical properties of deep-seated oils have been established, which are manifested in a decrease in the density and viscosity of oils, in a decrease in the content of sulfur and asphalt-resinous substances, and in an increase in the content of light fractions and oil gas. The results of geological modeling of changes in the stress state of rocks associated with the displacement of the foundation blocks due to tectonic processes are considered.
It has been shown that at the edges of the downing tectonic blocks at the boundary of the sedimentary cover and the basement, zones of minimum pressure (decompression zones) are formed. The lightest hydrocarbons migrate along the faults into the decompression zones, forming deep-seated hydrocarbon deposits, what can serve as a justification for the features of the properties of deep-seated oils established in the work.
About the Authors
I. G. Yashchenko
Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Irina G. Yashchenko – PhD (Geology and Mineralogy), Head of the Laboratory
4 AkademicheskyAv.,Tomsk, 634055
V. V. Krupitsky
Ugra Research Institute of Information Technologies
Russian Federation
Russian Federation
Vladimir V. Krupitsky – Head of the Geomodelling Center
151 Mira St., Khanty-Mansiysk, 628011
Yu. M. Polishchuk
Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Yury M. Polishchuk – DSc (Physics and Mathematics), Professor, Chief Researcher
4 AkademicheskyAv.,Tomsk, 634055
References
1. Glukhmanchuk E.D., Krupitsky V.V., Leontievsky A.V. (2015). Bazhenov oil – “shale technologies” and domestic production experience. Nedropolzovanie XXI vek, 7(57), pp. 32–37. (In Russ.)
2. Glukhmanchuk E.D., Leontievskiy A.V., Krupitskiy V.V. (2014). The interlayer shift in the rocks of the Bazhenov formation as a regional factor of intraformational fracturing. Nedropolzovanie XXI vek, 5(49), pp. 24–26. (In Russ.)
3. Grigoriev A.S., Mikhaylova A.V., Shakhmuradova Z.E. (1979). Relationships between the characteristics of vertical surface displacements and the stress state of the sedimentary cover in the over-fault zones. Stress and strain fields in the lithosphere. Moscow: Nauka, pp. 97–125. (In Russ.)
4. Ibraev V.I. (2006). Prediction of the stressed state of reservoirs and seals of oil and gas deposits in Western Siberia. Tyumen: Tyumenskiy dom pechati, 208 p. (In Russ.)
5. Kontorovich A.E., Danilova V.P., Kostyreva E.A., Stasova O.F. (1998). Geochemistry and genesis of Paleozoic oils in Western Siberia. Geokhimiya = Geochemistry, 36(1), pp. 3–17. (In Russ.)
6. Korotkov B.S., SimonovA.V. (2010). Prospectsfor gassearch in the deep horizons of Western Siberia. Vesti gazovoi nauki, 1(4), pp. 48–56. (In Russ.).
7. Leonov Yu.G., Volozh Yu.A. (2015). Oil deep horizons sedimentary basins of Russia and neighboring countries. Monitoring, Nauka i Technologii, 4(25), pp. 6–15. (In Russ.)
8. Lisovsky N.N., Halimov E.M. (2009). On the classification of hard-torecover reserves. Vestnik TsKR Rosnedra, 6, pp. 33–35. (In Russ.)
9. Polishchuk Yu.M., Yashchenko I.G. (2001). Statistical Analysis of Regional Variation in the Chemical Composition of Eurasian Crude Oils. Petroleum Chemistry, 41(4), pp. 271–276.
10. PolishchukY.M.,Yashchenko I.G., Kozin E.S.,An V.V. (2001). Database on composition and physical and chemical properties of oil and gas. Russian Agency for Patents and Trademarks. Sertificate No. 2001620067. (In Russ.)
11. Punanova S.A., Shuster V.L. (2018). A new look at the prospects of oil and gas deep-seated pre-Jurassic deposits of Western Siberia. Georesursy = Georesources, 20(2), pp. 67–80. https://doi.org/10.18599/grs.2018.2.67-80
12. Purtova I.P., Varichenko A.I., Shpurov I.V. (2011). Hard-to-recover oil reserves. Terminology. Problems and state of development in Russia. Nauka i TEK, 6, pp. 21–26. (In Russ.)
13. Shuster V.L., Dzyublo A.D. (2012). Geological preconditions of oil and gas potential in deep Jurassic and Pre-Jurassic depositsin the north ofWestern Siberia. Expozitsiya Neft Gaz, 2(20), pp. 26–29. (In Russ.)
14. Shuster V.L., Dzyublo A.D., Punanova S.A., Samoylova A.V. (2015). New geological and geochemical data of prospects of oil-and-gas content of deep-laying deposits of the North of Western Siberia. Zhivye i biokosnye sistemy, 14. (In Russ.). http://www.jbks.ru/archive/issue-14/article-2/
15. Trofimov V.A., Masagutov R.Kh. (2012). A new approach to solving the problem of oil exploration in the Riphean-Vendian complex of the East European platform. Geologiya nefti i gaza = Geology of oil and gas, 2, pp. 80–83. (In Russ.)
16. Yashchenko I.G. (2019). Specific Features of the Arctic Hard-toRecover Oil of Siberia. Chemistry for Sustainable Development, 27(1), pp. 92–100. https://doi.org/10.15372/CSD20190115
17. Yashchenko I.G., Krupitsky V.V., Polishchuk Y.M. (2019). Analysis of the regularities of change in the physicochemical properties of oils depending on the depth. Proc. International Conference on the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures – AIP Conference Proceeding. Tomsk, 2167(1), 020393. https://doi.org/10.1063/1.5132260
18. Yashchenko I.G., Polishchuk Y.M. (2019). Classification Approach to Assay of Crude Oils with Different Physicochemical Properties and Quality Parameters. Petroleum Chemistry, 59(10), pp. 1161–1168. https://doi.org/10.1134/S0965544119100116
19. Yashchenko I.G., Polishchuk Yu.M. (2016). Classification of Poorly Recoverable Oils and Analyis of their Quality Characteristics (Reviews). Chemistry and Technology of Fuels and Oils, 52(4), pp. 434–444. https://doi.org/10.1007/s10553-016-0727-9
20. Yashchenko I.G., Polishchuk Yu.M. (2014a). Features of Physical and Chemical Properties of Hard-to-Recover Oils. Tekhnologii nefti i gaza, 91(2), pp. 3–10. (In Russ.)
21. Yashchenko I.G., Polishchuk Yu.M. (2014b). Hard-to-recover oils: physical and chemical properties and distribution patterns. Tomsk: V-Spektr, 154 p. (In Russ.).
22. Zapivalov N.P. (2013). Geological and environmental risks in oil exploration and production. Georesursy = Georesources, 3(53), pp. 3–5. (In Russ.) https://doi.org/10.18599/grs.53.3.1
Review
For citations:
Yashchenko I.G., Krupitsky V.V., Polishchuk Yu.M. Features of changes in the physico-chemical properties of oils in connection with great depths. Georesursy = Georesources. 2021;23(3):99-108. (In Russ.) https://doi.org/10.18599/grs.2021.3.13
Views:
154
.png){kind=logo}
Email this article 