Priority directions for the development of the oil and gas complex is a systematic approach to assessing the prospects for the oil and gas potential of the regions. Based on the classification of oil systems proposed by Chinese researchers, the article discusses the characteristic features of the reservoirs of various oil and gas basins. There are three main types of petroleum hydrocarbon accumulations, which are characterized by the quality of the reservoir itself and the morphology of the traps, in combination with the corresponding indicators of hydrocarbon migration and accumulation. In accordance with the designated types of reservoirs, oil systems with their features of hydrocarbon ontogenesis are considered: source-rock petroleum system (or source system) with continuous reservoirs; an oil and/or gas oil system in tight, low-permeability rocks with quasi-continuous reservoirs and a traditional (conventional) reservoir oil system with discontinuous (discrete) reservoirs. It seems that the three oil systems under consideration can contain both a common source and several sources of hydrocarbons and from the standpoint of their formation and distribution, be genetically related to each other, i.e. be present in each pool as part of a single whole. Effective search and exploration at all stages requires comprehensive studies and various strategies taking into account the adoption of the paradigm of the integrity of the oil and gas basin in terms of the ontogenesis of oil and gas accumulations, their commonality and differences (in terms of the original source suites, migration processes, formation of traps and destruction clusters). Some information about the sedimentary basins of Australia, the Permian basin of the USA and the West Siberian oil and gas basin of Russia is given (both poor and rich in reserves and resources are used as examples). In each of the considered basins, it is proposed to assess the prospects of the territories in a comprehensive and systematic way, taking into account the classification features of oil systems.
References
1. Dmitrievskiy A.N., Izbrannye trudy (Selected works), Part 1, Moscow: Nauka Publ., 2008, 454 p.
2. Skorobogatov V.A., Silant'ev Yu.B., Salina L.S., Perspektivy razvitiya neftegazovoy geologii i problemy resursnogo obespecheniya gazodobyvayushchikh rayonov Rossii (Prospects for the development of oil and gas geology and problems of resource support for gas producing regions of Russia), Collected papers “Problemy resursnogo obespecheniya gazodobyvayushchikh rayonov Rossii do 2030” (Problems of resource provision for gas-producing regions of Russia until 2030), Moscow: Publ. of Gazprom VNIIGAZ, 2010, pp. 3–7.
3. Jing-Zhou Zhao, Jun Li, Wei-Tao Wu et al., The petroleum system: a new classification scheme based on reservoir qualities, Petroleum Science, 2019, V. 16, pp. 229–251, DOI: 10.1007/s12182-018-0286-2
4. Krayushkin V.A., Klochko V.P., Guseva E.E., Maslyak V.A., Successes in oil and gas exploration on the continental slopes of Australia and New Zealand (In Russ.), Geologiya i poleznye iskopaemye Mirovogo okeana, 2012, no. 1, pp. 88–102.
5. Fedorov A., Discover Australia (In Russ.), Neft' Rossii, 2000, no. 5–6, URL: http://www.oilru.com/nr/72/591/
6. Richardson A., Australia imports almost all of its oil, and there are pitfalls all over the globe, The Conversation, 23.05.2018, URL: https://theconversation.com/ australia-imports-almost-all-of-its-oil-and-there-are-pitfalls-all-over-the-globe-97070.
7. Punanova S.A., Vinogradova T.L., Immature oils of deep-water facies: physicochemical properties and hydrocarbon and trace-element composition (In Russ.), Geokhimiya = Geochemistry International, 2010, no. 11, pp. 1214–1223.
8. Interim Gippsland Basin unconventional resource assessment, Canberra: Geoscience Australia, 2017, 67 p., URL: https://d28rz98at9flks.cloudfront.net/ 104422/ Rec_104422_v3.pdf
9. Interim Otway Basin unconventional resource assessment, Canberra: Geoscience Australia, 2017, 82 p., URL: https://d28rz98at9flks.cloudfront.net/104440/ Rec_104440.pdf
10. Permskiy neftegazonosnyy basseyn (Permian oil and gas basin), In: Gornaya entsiklopediya (Mining encyclopedia), URL: http://www.mining-enc.ru/p/permskij-neftegazonosnyj-bassejn/
11. Lukin A.E., Geophysical methods and the problem of unconventional natural gas sources detection (In Russ.), Geologichniy zhurnal, 2014, no. 1(346), pp. 7–22.
12. Schenk C.J., Tennyson M.E., Klett T.R. et al., Assessment of Tight-Gas Resources in Canyon Sandstones of the Val Verde Basin, USGS Report, 2016, URL: https://pubs.er.usgs.gov/publication/fs20163039, https://doi.org/10.3133/ fs20163039
13. Marra K.R., Gaswirth S.B., Christopher J. et al., Assessment of undiscovered oil and gas resources in the Spraberry formation of the Midland basin, Permian basin province, Texas, USGS Report, 2017, https://doi.org/10.3133/fs20173029
14. Punanova S.A., Vinogradova T.L., Peculiarities of geological reserves distribution through gas-and-oil bearing complexes of northern regions of West Siberia (In Russ.), Geologiya nefti i gaza, 2008, no. 3, pp. 20–30.
15. Punanova S.A., Shuster V.L., Ngo L.T., Peculiarities of geological structures, and oil and gas efficiency in Pre-Jurassic deposits of Western Siberia and the basement of Vietnam (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2018, no. 10, pp. 16–19, DOI: 10.24887/0028-2448-2018-10-16-19
16. Punanova S.A., Shuster V.L., A new approach to the prospects of the oil and gas bearing of deep-seated Jurassic deposits in the Western Siberia (In Russ.), Georesursy, 2018, no. 2 (20), pp. 58–65, https://doi.org/10.18599/grs.2018.2.67-80
17. Punanova S.A., On the classification diversity of oil and gas trappers and geochemical criteria for the productivity of shale formations (In Russ.), SOCAR Proceedings, 2021, no. 2, pp. 1–15, http://dx.doi.org/10.5510/OGP2021SI200538.
18. Fomin M.A., Saitov R.M., Section types and oil prospects of the Bazhenov formation in the Nadym-Ob interfluve (In Russ.), Georesursy, 2020, no. 3 (22), pp. 2–11, DOI: 10.18599/grs.2020.3.2-11
19. Koveshnikov A.E., Oil and gas reservoirs in the pre-Jurassic formations of the West Siberian geosyneclise (In Russ.), Izvestiya Tomskogo politekhnicheskogo universiteta, 2011, V. 319, no. 1, pp. 147–151.
20. Ostroukhov O.B., Pronin N.V., Plotnikova I.N., Khayrtdinov R.K., A new method of "geochemical logging" for studying Domanic deposits (In Russ.), Georesursy, 2020, no. 3 (22), pp. 28–37, DOI: 10.18599/grs.2020.3.28-37
