Regional petroleum geology
| Article # 21_2024 | submitted on 07/17/2024 displayed on website on 08/19/2024 |
| 19 p. | Merkulova A.N., Petrova Yu.E., Shimanskiy S.V. |
| Characteristics of petroleum systems of the Baltic oil-bearing region | |
| The information on the formation features of hydrocarbon systems of the Baltic oil-bearing region: Cambrian, Ordovician and Silurian are summarized and analysed. Based on the consideration of geochemical and filtration-capacity properties of rocks, the composition and distribution of dispersed organic matter in oil and gas source strata, as well as the results of 1D basin modelling, it was established that all three sections meet all critical conditions for the formation of hydrocarbon accumulations within the framework of the concept of petroleum systems. At the same time, the Cambrian and Ordovician petroleum systems contain accumulations of a conventional type, and in the Silurian, an unconventional reservoir dominates. The Silurian oil and gas source rocks are also characterized by the greatest enrichment in organic matter. Oil and gas source strata of all three petroleum systems in the eastern part of the Kaliningrad region did not enter the main phase of oil and gas generation, the transformation coefficient of the organic matter contained in them does not exceed 7%, therefore, traditional petroleum accumulations in this region could only be formed due to the migration of fluids from the western regions. Taking into account the features of the tectonic structure of the region and the nature of the distribution of petroleum systems in the section, it was determined that conventional oil accumulations in the reservoirs of all oil and gas structures were formed due to the flow of hydrocarbons from all three oil and gas source rocks. Keywords: oil and gas source rock, petroleum system, basin modelling, organic matter, transformation coefficient, Baltic oil-bearing region, Kaliningrad region. |
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| article citation | Merkulova A.N., Petrova Yu.E., Shimanskiy S.V. Kharakteristika uglevodorodnykh sistem Baltiyskoy samostoyatel'noy neftenosnoy oblasti [Characteristics of petroleum systems of the Baltic oil-bearing region]. Neftegazovaya Geologiya. Teoriya I Praktika, 2024, vol. 19, no. 3, available at: https://www.ngtp.ru/rub/2024/21_2024.html EDN: TJIPZC |
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Bazhenova O.K. Autigennaya neftenosnost' kremnistykh tolshch [Authigenic oil-bearing capacity of siliceous strata]. Dissertatsiya na soiskanie uchenoy stepeni doktora geologo-mineralogicheskikh nauk, Moscow, 1991, 489 p. (In Russ.).
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Kaminskaite-Baranauskiene I., Cichon-Pupienis A., Makauskas P. Silurian barrier reef in Lithuania: Reservoir properties and low enthalpy geothermal heat potential. Heliyon, 2024, vol. 10, issue 4, e26360. DOI: 10.1016/j.heliyon.2024.e26360
Kharin G.S., Eroshenko D.V. Bazitovye intruzii i uglevodorodnyy potentsial yugo-vostochnoy Baltiki [Basic intrusions and hydrocarbon potential of the south-eastern Baltic]. Okeangeologiya, 2014, vol. 54, no. 2, pp. 267-281. (In Russ.).
Kosakowski P., Kotarba M. J., Piestrzynski A., Shogenova A., Wiecław D. Petroleum source rock evaluation of the Alum and Dictyonema Shales (Upper Cambrian-Lower Ordovician) in the Baltic basin and Podlasie depression (eastern Poland). International Journal of Earth Sciences, 2016, vol. 106, issue 2, pp. 743-761. DOI: 10.1007/s00531-016-1328-x
Kosakowski P., Papiernik B., Wróbel M., Machowski G. We P3 05 Quantitative description of the selected features of Silurian-Ordovician shale gas petroleum system in Poland. 77th EAGE Conference & Exhibition, Madrid, Spain, July 2015. DOI: 10.3997/2214-4609.201413081
Kosakowski P., Zakrzewski A., Waliczek M. Ordovician and Silurian Formations of the Baltic Syneclise (NE Poland): An Organic Geochemistry Approach. Lithosphere, March 2022, 30 p. DOI: 10.2113/2022/7224168
Michelevicius D., Kaminskas D., Blažauskas N. The Silurian barrier reef structures of the Baltic petroleum basin (Lithuania) according to recent 3D seismic results. IX Congreso de Exploración y Desarrollo de Hidrocarburos. Conference Paper. IAPG Instituto Argentino del Petróleo y el Gas, 2014, pp. 527-538. DOI: 10.13140/2.1.2521.3121.
Motuza G., Šliaupa S. Timmerman M.J. Geochemistry and 40Ar/39Ar age of Early Carboniferous dolerite sills in the southern Baltic Sea. Estonian Journal of Earth Sciences, 2015, 64, 3, pp. 233-248. DOI: 10.3176/earth.2015.30
Okhotnikova E.S., Yusupova T.N., Barskaya E.E., Ganeeva Yu.M., Mukhametshin R.Z. Analiz geokhimicheskikh parametrov neftey mestorozhdeniy Kaliningradskoy oblasti i ego znachenie dlya neftedobychi [Analysis of geochemical parameters of oils from fields in the Kaliningrad region and its significance for oil production]. Neftekhimiya, 2021, vol. 61, no. 5, pp. 611-619. (In Russ.).
Otmas A.A. (Senior), Pakhunov A.M., Romanov V.V., Grigor'ev G.A. Yugo-vostochnaya chast' Kaliningradskogo regiona - novye otkrytiya i perspektivy neftepoiskovykh rabot [Southern-eastern part of Kaliningrad region - new openings and oil prospect perspectives]. Neftegazovaya Geologiya. Teoriya I Praktika, 2018, vol. 13, no. 3, available at: http://www.ngtp.ru/rub/6/29_2018.pdf (In Russ.). DOI: 10.17353/2070-5379/29_2018
Otmas A.A. (starshiy), Grigor'ev G.A., Sibilev M.A. Shel'f Baltiyskogo morya - resursnyy potentsial i perspektivy dlya dal'neyshikh poiskov zalezhey uglevodorodov [The Baltic Sea shelf - resource potential and prospects for further exploration of hydrocarbon accumulations]. Mineral'nye resursy Rossii. Ekonomika i upravlenie, 2019, no. 5, pp. 21-27. (In Russ.).
Otmas Al.A., Kokhanova A.N., Otmas An.A., Grigor'ev G.A. Nizhnepaleozoyskie tolshchi Kaliningradskoy oblasti kak potentsial'nyy istochnik slantsevoy nefti [Lower Paleozoic strata of the Kaliningrad region as a potential source of shale oil]. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy, 2015, no. 6, pp. 12-17. (In Russ.).
Prishchepa O.M., Sukhanov A.A., Makarova I.R. Metodika opredeleniya zrelosti sapropelevogo organicheskogo veshchestva v domanikitakh i otsenki ikh uglevodorodnykh resursov [Methodology for determining the maturity of sapropelic organic matter in domanikites and assessing their hydrocarbon resources]. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy, 2015, no. 7, pp. 4-9. (In Russ.).
Sukhanov A.A., Otmas A.A. (senior), Makarova I.R. Sravnenie rezul'tatov issledovaniya organicheskogo veshchestva domanikoidnykh otlozheniy razlichnymi metodami v svyazi s diagnostikoy neftegazonosnosti siluriyskikh otlozheniy Kaliningradskoy oblasti [Research of organic matter of Domanic Formation - comparison of the results in view of petroleum potential evaluation of the Silurian strata of Kaliningrad region]. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 3, available at: http://www.ngtp.ru/rub/4/42_2012.pdf (In Russ.).
Vernon R., O’Neil N., Pasquali R., Nieminen M. Screening of prospective sites for geological storage of CO2 in the Southern Baltic Sea. Espoo. VTT Technology, 2003, no. 101, available at: https://publications.vtt.fi/pdf/technology/2013/T101.pdf
Wiecław D., Kotarba M.J., Kowalski A. Origin of oils accumulated in the Middle Cambrian reservoirs of the Polish part of the Baltic region. Geological Quarterly. Warszawa, 2010, 54 (2), pp. 205-216.
Yang S., Schulz H.-M., Schovsbo N.H., Bojesen-Koefoed J.A. Oil-source rock correlation of the Lower Palaeozoic petroleum system in the Baltic Basin (northern Europe). AAPG Bulletin, 101, 12, pp. 1971-1993. DOI: 10.1306/02071716194
Zdanaviciute O., Lazauskiene J., Khoubldikov A.I., Dakhnova M.V., Zheglova T.P. The middle Cambrian succession in the central Baltic basin: geochemistry of oils and sandstone reservoir characteristics. Journal of Petroleum Geology, 2012, vol. 35, no. 3, pp. 237-254. DOI: 10.1111/j.1747-5457.2012.00528
Zytner Yu.I., Fenin G.I. Perspektivy ordovikskikh otlozheniy Gusevskoy neftyanoy zalezhi [Prospects of the Ordovician carbonate strata of the Gusev oil accumulation]. Neftegazovaya geologiya. Teoriya i praktika, 2010, vol. 5, no. 4, available at: http://www.ngtp.ru/rub/4/47_2010.pdf (In Russ.).