Azerbaijan State Oil and Industry University, Baku, Azerbaijan:

S. A. Alieva, Associate Professor, Candidate of Geological and Mineralogical Sciences, suaza@mail.ru

The geodynamics and oil-and-gas geology zoning of the Caspian megadepression and in adjacent areas has been performed using the geodynamic research methods developed by the author and the retrospective basin analysis. The procedure takes into account the optimal techniques typical of the basin genetics zoning (sameness of hydrocarbon generation conditions) and to the geotectonic zoning, with identification of oil-and-gas basins–provinces and smaller chains of the zoning system. As a result of the studies, new and more correct diagrams are constructed for the oil-and-gas geology zoning of the Northern, Central and Southern Caspian areas, as well as within Azerbaijan, and are integrated into a single oil-and-gas geology zoning chart for the whole territory of the Caspian megadepression and adjacent areas. The implemented zoning carried out of the vast, structurally complex territory has identified 6 oiland-gas basins–provinces (Pre-Caspian, North Caucasus–Mangyshlak, Aral-Ustyurt, South Caspian, Transcaucasian and Amudarya). Two oil and gas subprovinces (North Caspian and Middle Kura–Kartli), as well as two independent oil and gas fields (Dibrar and Nakhichevan) have been detected. In all major chains, oil-and-gas-bearing and promising oil-and-gas areas, as well as oil and gas accumulations are recognized. The developed chart of the optimized oil-and-gas geology zoning in combination with other oil and gas potential criteria can serve as a reliable framework for the oil and gas prospects assessment and development of ways of further search and exploration of hydrocarbon pockets and deposits in the territory of the Caspian megadepression and in adjacent areas.

1. Averbukh B. M., Alieva S. A. Geological methods of system zoning of structurally complex oil-andgas regions using retrospective analysis of evolution of sedimentary basins. Azerbaydzhanskoe neftyanoe khozyaystvo. 2009. No. 11. pp. 16–19.
2. Kerimov V. Yu., Gasanov A. B., Gurbanov V. Sh., Abbasova G. G. Petrophysical characteristic of deep oil and gas reservoirs in inland and offshore fields in Azerbaijan. Eurasian Mining. 2020. No. 1. pp. 3–8. DOI: 10.17580/em.2020.01.01
3. Averbukh B. M., Alieva S. A. Methods to analyze geodynamic evolution of large sedimentary basins when zoning structurally complex region. Oil and Gas of West Siberia : Proceedings of International Conference on the Occasion of the 55^th Anniversary of the Tyumen State Oil and Gas University. Tyumen : TyumGNGU, 2011. Vol. 1. pp. 3–6.
4. Averbukh B. M., Alieva S. A. Commercial oil and gas potential of the Northern Caspian shelf. Geologiya nefti i gaza. 2006. No. 1. pp. 18–24.
5. Glumov I. F., Malovitskiy Ya. P., Novikov A. A., Senin B. V. Regional geology and oil and gas content of Caspian sea. Moscow : Nedra-Biznestsentr, 2004. 342 p.
6. Averbukh B. M., Alieva S. A. Retrospective analysis of evolution of sedimentary paleo-basins as a method to improve accuracy of system zoning and oil and gas prediction in structurally complex areas. Innovative Advancement of Oil and Gas Industry in Russia : Science and Education. XVIII Gubkin’s Lectures : Head-Notes. Moscow : Rossiyskiy gosudarstvennyi universitet nefti i gaza imeni I. M. Gubkina, 2009. pp. 9–10.
7. Dzhafarov I. S., Kerimov V. Yu., Shilov G. Ya. I. S. Sheilf its study and value for prospecting and exploration accumulations of petroleum and gas. Saint-Petersburg : Nedra, 2005. 384 p.
8. Rachinskiy M. Z., Chilingar J. South Caspian basin reserves and resources : 1990–2005 geological exploration data, geological prospects and evaluation. Azerbaydzhanskoe neftyanoe khozyaystvo. 2007. No. 1. pp. 32–48.
9. Lapidus A. L., Kerimov V. Y., Mustaev R. N., Movsumzade E. M., Zakharchenko M. V. Caucasus Maykopian kerogenous shale sequences: Generative potential. Oil Shale. 2018. Vol. 35, No. 2. pp. 113–127.
10. Kerimov V. Yu., Gordadze G. N., Lapidus A. L., Giruts M. V., Mustaev R. N. et al. Physicochemical Properties and Genesis of the Asphaltites of Orenburg Oblast. Solid Fuel Chemistry. 2018. Vol. 52, No. 2. pp. 128–137.
11. Mustaev R. N., Kerimov V. Y., Shilov G. Y., Dmitrievsky S. S. Modeling of thermobaric conditions formation of the shale hydrocarbon accumulations in low-permeability reservoirs khadum formation Ciscaucasia. Geomodel 2016—The 18^th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development. 2016. DOI: 10.3997/2214-4609.201602185
12. Guliev I. S., Kerimov V. Y., Mustaev R. N., Bondarev A. V. The Estimation of the Generation Potential of the Low Permeable Shale Strata of the Maikop Caucasian Series. SOCAR Proceedings. 2018. No. 1. pp. 4–20.
13. Zeynalov A. N. Hydrodynamic study of sand manifestation during oil formations development. Stroitelstvo neftyanykh i gazovykh skvazhin na sushe i na more. 2019. No. 4. pp. 21–23.
14. Kerimov V. Yu., Gordadze G. N., Mustaev R. N., Bondarev A. V. Formation Conditions of Hydrocarbon Systems on the Sakhalin Shelf of the Sea of Okhotsk Based on the Geochemical Studies and Modeling. Oriental Journal of Chemistry. 2018. Vol. 34, No. 2. pp. 934–947.
15. Mousavi S. M. Spatial variation in the frequency-magnitude distribution of earthquakes under the tectonic framework in the Middle East. Journal of Asian Earth Sciences. 2017. Vol. 147. pp. 193–209.
16. Kamranzad B., Etemad-Shahidi A., Chegini V. Sustainability of wave energy resources in southern Caspian Sea. Energy. 2016. Vol. 97. pp. 549–559.