Tag: migration

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GEOCHEMICAL FEATURES OF STRONTIUM ACCUMULATION AND MIGRATION IN THE PEATS OF THE LVIV REGION

Home > Archive > No. 1–2 (187–188) 2022 > 58–70

Geology & Geochemistry of Combustible Minerals No. 1–2 (187–188) 2022, 58–70.

https://doi.org/10.15407/ggcm2022.01-02.058

Myroslava YAKOVENKO

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, e-mail: myroslavakoshil@ukr.net

Abstract

The article is devoted to the study of geochemical characteristics of the distribution, accumulation and migration of strontium in the lowland peats of the Lviv Region, both laterally and vertically, and to identify the main factors influencing the formation of its concentrations.

A significant uneven distribution of concentration, high dispersion and variability (coefficient of variation – 116.61, standard deviation – 564.11) of Sr in peats within deposits, districts and regions both with depth and area of distribution and high content indicators were established Sr relative to clarks of the lithosphere, soils, plant ash (CC relative to the lithosphere = 1.42; CC relative to soil clarks = 1.94; Сs relative to background values in the soils of Ukraine = 4.56; CK relative to clarks of terrestrial plants = 1.61).

The content of Sr in the peat of the Lviv Region ranges from 40–3190 mg/kg (average content 483.75 mg/kg, median content (background content) – 250 mg/kg), which is due to natural-climatic, geological, lithological, hydrogeochemical and anthropogenic factors.

The features of the distribution and the degree of concentration of Sr in the peatlands of the Lviv Region are mainly influenced by the chemical-mineralogical-petrographic composition of the bedrocks of the wear area during their weathering; terrain, climatic, geomorphological, tectonic and hydrogeological conditions of the area, which determine the of the weathering processes of the rocks in the wear areas, the degree of transformation of terrigenous material in the weathering processes, the rate of accumulation of biomass and the rate of its decomposition; features of water and mineral nutrition of the peatland.

High concentrations of strontium in the peat of the Lviv Region reflect the local regional processes of the concentration of the element in the mass of peat and may indicate the accumulation of Sr of both natural and anthropogenic origin in the upper layers of peat profiles. There is an enrichment of Sr in the upper intervals of deposits (0–1 m) of deposits in the northeastern part of the Lviv Region (Malopoliska peat region) is observed.

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Keywords

peat, peat deposit, strontium, microelement composition, concentration, Clark concentration, accumulation, migration

Referenses

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Buchynska, I., Lazar, H., Savchynskyi, L., & Shevchuk, O. (2013). Umovy utvorennia vuhillia plasta n8 Lvivsko-Volynskoho baseinu za heokhimichnymy danymy. Heolohiia i heokhimiia horiuchykh kopalyn, 1–2, 32–41. [in Ukrainian]

Burkov, V. V., & Podporina, Ye. K. (1962). Strontsii. Trudi Instituta mineralogii, geokhimii i kristallografii redkikh metallov, 12, 180. [in Russian]

Chertko, N. K., & Chertko, E. N. (2008). Geokhimiya i ekologiya khimicheskikh elementov. Minsk: Izdatelskii tsentr BGU. [in Russian]

For, G., & Dzhons, L. (1974). Izotopnii sostav strontsiya v rossipyakh Krasnogo morya. In Sovremennoe gidrotermalnoe rudootlozhenie (pp. 141–148). Moskva: Mir. [in Russian]

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Kushnir, S. V., Shuter, Ya. N., Pankiv, R. II., & Srebrodolskii, B. I. (1982). Osnovnie formi nakhozhdeniya strontsiya v sernikh rudakh Predkarpatya. In Geologiya i geokhimiya nemetallicheskikh iskopaemikh (pp. 102–108). Kiev: Naukova dumka. [in Russian]

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ON CONTENT, MIGRATION AND CONCENTRATION OF HEAVY METALS IN OILS (by the example of the Dnieper-Donets Depression)

Home > Archive > No. 4 (181) 2019 > 96-103

Geology & Geochemistry of Combustible Minerals No. 4 (181) 2019, 96-103.

https://doi.org/10.15407/ggcm2019.04.096

Artem Yerofieiev

V. N. Karazin Kharkiv National University,
e-mail: pro100graf@gmail.com

Ihor Berezovsky

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine,
e-mail: igggk@mail.lviv.ua

Abstract

Literature review and analysis of previous studies of the problem was carried. The main scientific works on the research topic, as well as the main directions and stages of the study are indicated. Similar studies that were conducted on the territory of Ukraine are considered.

The results of the study of heavy metals in oil samples taken from a large oil and gas region from more than thirty deposits of Ukraine are presented. All current and non-working fields are considered.

The geological structure of the oil and gas province, as well as the main geochemical features of the formation of mineral deposits are considered. The main forms of finding target metals, as well as possible ways of transferring these elements in the earth’s crust are given.

Samples were investigated using x-ray fluorescence and neutron activation analysis. The obtained research data in the framework of two selected methods are combined for analysis. The results obtained within the same geological structure are compared with each other to determine the effect of the physical conditions of sediment formation on the microcomponent composition of crude oil. They also compared the effect of physical conditions on the properties of oil and their ability to accumulate heavy metals. Possible causes of the abnormal accumulation of heavy metals due to the close occurrence of oil and formation water are noted.

According to the results obtained, a graph is constructed of the dependence of the mineralization of oil on its depth. An exponential graphical approximation is presented to display the general trend of dependence.

Possible sources and ways of migration and accumulation of heavy metals in hydrocarbons are analyzed. The concept of the migration of heavy metals in oil is proposed in conjunction with the ore mineralization of adjacent and adjacent deposits.

Possible causes of differences in the concentrations of heavy metals in oil of various geological structures are indicated, as well as the main possible causes of measurement errors and complications in the selection of each of the analysis methods are specified.

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Keywords

migration, heavy metals, petroleum, X-ray fluorescence spectroscopy, petroleum geochemistry, organometallic compounds.

REFERENCES

Ahmad, D. M., Hafizan, J., & Kamaruzaman, Y. (2015). Oil spill related Heavy Metal: a Review. Malaysian Journal of Analytical Sciences, 48 (1), 1348-1360.
 
Akpoveta, O. V., & Osakwe, S. A. (2014). Determination of Heavy Metal Contents in Refined Petroleum. IOSR Journal of Applied Chemistry, 7 (6), 1-2.
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Lazarenko, E. K., Panov, B. S., & Pavlishin, V. I. (1975). Mineralogiya Donetskogo basseyna. Kiev: Naukova dumka. [in Russian]
 
Madu, A. N., & Iwuoha, G. A. (2011). Extent of heavy metals in oil samples in escravos, Abiteye and Malu Platforms in Delta State Nigeria Njoku. Learning Publics Journal of Agriculture and Environmental Studies, 2 (2), 41-44.
 
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Suiarko, V. H., Zahnitko, V. M., & Reshetov, I. K. (2008). Ridkisni elementy v hidrotermalnykh vodakh Donbasu. Visnyk Kharkivskoho natsionalnoho universytetu imeni V. N. Karazina, 803, 70-74. [in Ukrainian]
 
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https://doi.org/10.1016/j.proenv.2015.10.036

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QUANTITATIVE INDEX OF TOC CONTENT OF DIFFERENT AGE THICKNESSES OF TRANSCARPATHIAN DEPRESSION AS OIL GAS GENERATION ESTIMATION CRITERIA

Home > Archive > No. 1 (178) 2019 > 41-46

Geology & Geochemistry of Combustible Minerals No. 1 (178) 2019, 41-46.

https://doi.org/10.15407/ggcm2019.01.041

Andrii Andriiovych LOKTIEV

ТзОВ «Компанія «Геопошук ЛТД», смт Рожнятів, Івано-Франківська обл.,
e-mail: shon327@hotmail.com

Abstract

The Transcarpathian foredeep of Ukraine is a geological unit within the Carpathian folded structure, presented by Neogene molasses, which cover Pre-Neogene folded base.

Five deposits of combustible gas were discovered within the foredeep – Russko-Komarivske, Stanivske and Korolevskoye within the Mukachevo depression and Solotvino and Dibrovske fields within the Solotvino depression. Despite the fact that most domestic researchers adhere to the view of gas migration along deep tectonic faults into the sedimentary cover of the Transcarpathian foredeep, it is important to analyze the basin for favourable conditions for the generation of natural gases within the sedimentary cover.

Samples of core material, selected from 57 intervals of different age complexes of rocks from Transcarpathian wells for quantitative estimation of total organic carbon in rock, were analyzed in the department of sedimentary strata of IGGCM NASU. The results of the studies indicate the presence of rocks with low as well as good and even very good oil and gas potential for total organic carbon content, which are overwhelmingly related to the deposits of Pre-Neogene folded base. In general, a wide range of TOC content is established by the analysis. Rocks with TOC content of more than 1% are found both in rocks of the Pre-Neogene base (w. № 22-, 23-Solotvino, 1-Bushtinska, 1-Borodivsko-Novosilska), and in the molar thickness of the Neogene (St. No. 1-Velyko-Dobronska, 8-Tyachivska), which indicates sufficient content to generate hydrocarbons.

Further research aimed at determining the oil and gas potential will allow to determine the priority directions of oil and gas exploration within the Transcarpathian foredeep.

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Keywords

gas, generation, migration, Transcarpathian foredeep, field, source rocks, TOC.

REFERENCES

Boiko, H. Yu. et al. (2003). Hlybynna heolohichna budova Karpatskoho rehionu. Heolohiia i heokhimiia horiuchykh kopalyn, 2, 12-22. [in Ukrainian]
 
Dembicki, Jr. H. (2009). Three common source rock evaluation errors made by geologist during prospect or play appraisals. AAPG Bulletin, 93, 341-356.
https://doi.org/10.1306/10230808076
 
Dolenko, G. N. et al. (1980). Glubinnoye stroyeniye razvitiye i neftegazonosnost Ukrainskikh Karpat. Kiev: Naukova dumka. [in Russian]
 
Dolton, G. L. (2006). Pannonian Basin Province, Central Europe (Province 4808) – Petroleum geology, total petroleum systems, and petroleum resource assessment. U.S. Geological Survey, Bulletin 2204-B, 47 p.
 
Krupskyi, Yu., & Krupska, O. (2008). Vydilennia perspektyvnykh terytorii dlia poshuku rodovyshch zi znachnymy zapasamy vuhlevodniv u Zakhidnomu naftohazonosnomu rehioni. Heolohiia i heokhimiia horiuchykh kopalyn, 1, 5-10. [in Ukrainian]
 
Misiura, Ya. B. (2008). Do pytannia naftohazonosnosti Zakarpatskoho neohenovoho prohynu. Zbirnyk naukovykh prats UkrDHRI, 1, 13-14. [in Ukrainian]
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GEOLOGICAL-GEOCHEMICAL FEATURES OF MIGRATION AND FORMATION OF GAS FIELDS IN OIL- AND GAS-BEARING REGIONS OF UKRAINE

Home > Archive > No. 1 (178) 2019 > 21-40

Geology & Geochemistry of Combustible Minerals No. 1 (178) 2019, 21-40.

https://doi.org/10.15407/ggcm2019.01.021

Olesya SAVCHAK

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv,
e-mail: igggk@mail.lviv.ua

Abstract

Geochemical composition of main components of natural gas has been analysed for three oil- and gas-bearing regions of the Ukraine, namely: Western (40 fields of the Precarpathian deep, 4 gas fields of the Transcarpathian deep and 2 gas fields located within the limits of the Lviv Paleozoic deep), Eastern (composition of natural gases at 12 fields) and Southern (analysis of data on chemical composition of natural gases from 8 fields in the water area of the deep and 13 fields on land).

Comparative analysis of the composition of natural hydrocarbons has been carried out within the limits of the Western region based on the main structural-tectonic elements of the region: outer and inner zones of the Precarpathian deep, the Transcarpathian deep and the Lviv Paleozoic deep; within the Eastern region – the Northern edge of the deep and the deep itself; within the Southern region – water area and land. On this basis the definite zonality of the distribution of hydrocarbon components of natural gases within the bounds of the oil-gas regions has been determined. Such different composition of gases testifies to independent sources of hydrocarbon supply and different duration of migration of the latter.

The analyses of the features of the distribution of the components of natural gas of main oil- and gas-bearing regions of the Ukraine and of the gas presence in the aggregate have enabled us to determine main aspects of the processes both of lateral and vertical migration of hydrocarbons.

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Keywords

geochemical features, migration, hydrocarbons, Western, Eastern and Southern oil-gas regions of Ukraine.

REFERENCES

Atlas rodovyshch nafty i hazu Ukrainy. T. 4-5. Zakhidnyi naftohazonosnyi rehion. (1998). Lviv: UHNA. [in Ukrainian]
 
Pavliuk, M. I., Varichev, S. O., Rizun, B. P., & Savchak, O. Z. (2002). Naftohazonosni provintsii Ukrainy (heodynamichnyi aspekt). Heolohiia i heokhimiia horiuchykh kopalyn, 1, 3-12. [in Ukrainian]
 
Pavliuk, M. et al. (2008). Heodynamichni umovy formuvannia naftohazonosnykh provintsii Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 3 (144), 16-25. [in Ukrainian]
 
Savchak, O. Z. (2003). Heokhimichni osoblyvosti naft i kondensativ Pivdennoho naftohazonosnoho rehionu Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 3-4, 27-37. [in Ukrainian]
 
Savchak, O. Z. (2015). Heodynamichni aspekty roztashuvannia rodovyshch nafty i hazu naftohazonosnykh provintsii Ukrainy. In Heolohiia horiuchykh kopalyn: Materialy Mizhnar. nauk. konf. (Kyiv, 2-4 veresnia 2015 r.) (pp. 96-98). Kyiv. [in Ukrainian]
 
Savchak, O. Z. (2017a). Heokhimichni aspekty protsesiv naftohazonahromadzhennia naftohazonosnykh rehioniv Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 1-2 (170-171), 154-156. [in Ukrainian]
 
Savchak, O. Z. (2017b). Heokhimichni aspekty protsesiv mihratsii ta akumuliatsii vuhlevodniv Skhidnoho naftohazonosnoho rehionu Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 3-4 (172-173), 9-29. [in Ukrainian]
 
Savchak, O. Z. (2018). Heodynamichni ta heokhimichni aspekty naftohazonahromadzhennia Zakhidnoho naftohazonosnoho rehionu Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 3-4 (176-177), 5-20. [in Ukrainian]
 
Savchak, O. Z. (2019). Heoloho-heokhimichni osoblyvosti rozmishchennia rodovyshch nafty i hazu naftohazonosnykh provintsii Ukrainy. In Tezy dop. Nauk. konf., prysviachenoi 50-richchiu In-tu heokhimii, mineralohii ta rudoutvorennia im. M. P. Semenenka NAN Ukrainy (Kyiv, 14-16 travnia 2019 r.) (T. 2, pp. 82-84). Kyiv. [in Ukrainian]
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GEODYNAMIC AND GEOCHEMICAL ASPECTS OF OIL AND GAS ACCUMULATION OF THE WESTERN OIL AND GAS REGION OF UKRAINE

Home > Archive > No. 3-4 (176-177) 2018 > 5-20

Geology & Geochemistry of Combustible Minerals No. 3-4 (176-177) 2018, 5-20.

Olesya SAVCHAK

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, e-mail: igggk@mail.lviv.ua

Abstract

The Western oil-gas region of Ukraine is the most important oil- and gas-producing region of Ukraine and is the oldest one as to the time of discovery of commercial deposits of hydrocarbons. In all 94 fields were discovered in the region. Six of them belong to great, eight – to middle and eighty – to small. The greatest amount of fields is in the Bilche-Volytsa (47) and the Boryslav-Pokuttya (39) oil-gas regions. In the Transcarpathian gas-bearing region five gas fields are known, in the Carpathian – two oil fields and within the limits of the Volyn-Podillya area – two gas fields. We have analysed the geochemical composition of oil and condensate for 3 structural-tectonic elements of the region: outer, inner zone of the Carpathian Foredeep and Folded Carpathians and the comparative analysis of the composition of natural hydrocarbons within the limits of the region was carried out. The analysis of peculiarities of the geological structure and oil and gas presence in the totality with available geochemical data has allowed us to come to a conclusion that formation of oil and gas deposits in the Western oil- and gas-bearing region is caused both lateral and vertical migration of hydrocarbons.

Full Text

Keywords

geochemical features, migration, hydrocarbons, Western oil and gas region of Ukraine.

Referenses

Dolenko, G. N. (1990). Geologiya i geokhimiya nefti i gaza. Kiev: Naukova dumka. [in Russian]

Ivaniuta, M. M. (Ed.). (1998). Atlas rodovyshch nafty i hazu. T. 4–5. Zakhidnyi naftohazonosnyi rehion. Lviv. [in Ukrainian]

Pavliuk, M., Halabuda, M., Rizun, B. et al. (2008). Heodynamichni umovy formuvannia naftohazonosnykh provintsii Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 3 (144), 16–25. [in Ukrainian]

Savchak, O. Z. (2015). Heodynamichni aspekty roztashuvannia rodovyshch nafty i hazu naftohazonosnykh provintsii Ukrainy. In Heolohiia horiuchykh kopalyn: materialy Mizhnarodnoi naukovoi konferentsii (Kyiv, 2–4 veresnia 2015 r.) (s. 96–98). Kyiv. [in Ukrainian]

Savchak, O. Z. (2017). Heokhimichni aspekty protsesiv naftohazonahromadzhennia naftohazonosnykh rehioniv Ukrainy. Heolohiia i heokhimiia horiuchykh kopalyn, 1–2 (170–171), 154–156. [in Ukrainian]

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DISTRIBUTION AND ORIGIN OF HYDROCARBON GASES IN COAL-BEARING DEPOSITS OF THE LVIV-VOLYN COAL BASIN

Home > Archive > No. 3-4 (172-173) 2017 > 87-105

Geology & Geochemistry of Combustible Minerals No. 1-2 (174-175) 2018, 87-105.

Mykhailo MATROFAILO, Iryna BUCHYNSKA, Andriy POBEREZHSKYY

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, e-mail:igggk@mail.lviv.ua

Abstract

After sufficient study, generalizations of all the data available as to stratigraphy, tectonics, lithological composition of coal-bearing series of the basin from the point of view of its potential for gas presence was possible. The composition, nature of coal gases, forms of occurrence and the mode of their burial have been considered. Problems of generation of hydrocarbon gases in the process of coalification of organic substance and their abiogenic origin connected with subsurface processes of the Earth have been studied. The influence of reservoir properties of coal and coal-enclosing rocks, the composition and physical-mechanical features of the immediate roof and the foot of coal seams have been analysed, the dependence of the gas distribution in coal seams and coal-enclosing rocks upon disjunctive tectonic dislocations has been ascertained. The influence of intraformational and epigene washouts upon degassing of coal seams has been investigated. On the basis of construction of schemes of the gas presence in coal seams of some mine fields and on the whole basin the conclusions have been made about the methane distribution in coal-bearing series.
Materials on the assessment of methane resources of the gas-coal fields have been accumulated and systematized as well as the prospects of the modern natural gas presence in coal seams of the deep levels of the basin have been outlined. Optimum conditions of the formation of hydrocarbon gases accumulations have been cited. The conclusions have been made as to the modern extractive potential of gases of coal-bearing series of the Lviv-Volyn Basin as possible source of the improvement of the up-to-date state of the fuel-power complex of the Ukraine.

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Keywords

methane, gas presence, generation, migration, deposits, coal seam, gas-coal fields, resources, Lviv-Volyn coal basin.

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GEOCHEMICAL ASPECTS OF THE PROCESSES OF HYDROCARBON MIGRATION AND ACCUMULATION OF THE UKRAINE’S OIL- AND GAS-BEARING REGION

Home > Archive > No. 3-4 (172-173) 2017 > 9-28

Geology & Geochemistry of Combustible Minerals No. 3-4 (172-173) 2017, 9-28.

Olesya SAVCHAK

Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, e-mail: igggk@mail.lviv.ua

Abstract

The Eastern oil- and gas-bearing region of Ukraine is the youngest one as regards the discovery of commercial hydrocarbon deposits and the greatest one in terms of volume of explored reserves and hypothetical resources. It is confined to the Dnieper-Donets Depression. There were more then 240 hydrocarbon deposits discovered here. We have analyses the geochemical composition of oil and condensate for 3 main structural-tectonic elements of the region: northern, southern edges and depression, as well as we have carried out comparative analysis of the composition of natural hydrocarbons within the limits of the region. The analysis of the peculiarities of geological structure and oil and gas presence together with available geochemical data has made it possible to come to a conclusion about that the formation of oil and gas deposits in the Eastern oil- and gas-bearing region was caused both by lateral and vertical migration of hydrocarbons.

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Keywords

geochemical features, migration, hydrocarbons, Eastern oil- and gas-bearing region of Ukraine.

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