МЕНЮ


Rozhin I.I.

i_rozhin@mail.ru




Graduated from Yakutsk State University (1998), specialization "physics".
PhD in technical sciences, associate professor.
Leading Researcher of Institute of Oil and Gas Problems of the Siberian Branch of Russian Academy of Sciences (IOGP SB RAS).
Area of scientific interest: mathematical modeling in the Earth sciences, thermohydrodynamics of oil and gas production and transport systems, gas hydrates.
Author of 252 publications, including 1 monograph and 3 teaching aids, 9 computer programs in the database FIPS (ROSPATENT).
Regional petroleum geology
Article # 37_2024 submitted on 09/03/2024 displayed on website on 11/25/2024
13 p. Sivtsev A.I., Rozhin I.I.
pdf Study of gas hydrate formation possibilities in the upper part of the Predpatom trough (on example of the Kedergin gas condensate field)
High prospects of the industrial gas content in the upper part of the Predpatom regional trough section are noted using Kedergin and Mukhtin fields as an example. A brief geological description of the section and tectonic position of Kedergin gas condensate field is given. The results of testing the Kelor productive unit confined to the Icher Formation of the Lower Cambrian are presented. Based on the gas component composition, the degree and type of stratum water mineralization, the equilibrium conditions of the hydrate formation for the Kelor productive unit are calculated. It is concluded that gas hydrates do not form in the upper part of the section of Kedergin gas condensate field due to high mineralization of the stratum water. It is suggested that weakly mineralized stratum waters in the upper part of the section may be concentrated in the folded wing of the Predpatom trough. The possibility of the gas hydrate formation in the zones of weakly mineralized stratum waters distribution in the upper part of the section is shown.

Keywords: Kelor productive unit, reservoir water mineralization, hydrate formation conditions, Kedergin gas condensate field, Predpatom trough.
article citation Sivtsev A.I., Rozhin I.I. Izuchenie vozmozhnosti gidratoobrazovaniya v verkhney chasti razreza Predpatomskogo progiba (na primere Kederginskogo gazokondensatnogo mestorozhdeniya) [Study of gas hydrate formation possibilities in the upper part of the Predpatom trough (on example of the Kedergin gas condensate field)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2024, vol. 19, no. 4, available at: https://www.ngtp.ru/rub/2024/37_2024.html EDN: RBYYZA
References
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   Sivtsev A.I., Timofeev N.G., Meshcheryakov V.A. Perspektivnye neftegazovye ob"ekty na severo-vostoke Predpatomskogo progiba [Oil-and-gas potential of the northeast Predpatom trough]. Prirodnye resursy Arktiki i Subarktiki, 2024, vol. 29, no. 2, pp. 193-203. (In Russ.). DOI: 10.31242/2618-9712-2024-29-2-193-203
   Sloan E.D., Koh C.A. Clathrate hydrates of natural gases. Boca Raton: Taylor & Francis Group/CRC Press, 2008, 720 p.
   Tsypkin G.G. Termodinamicheskie usloviya obrazovaniya gidrata SO2 pri inzhektsii uglekisloty v plast, soderzhashchiy gidrat metana [Thermodynamic conditions of formation of CO2 hydrate in carbon dioxide injection into a methane hydrate reservoir]. Izvestiya RAN. Mekhanika zhidkosti i gaza, 2018, no. 5, pp. 103-112. (In Russ.). DOI: 10.31857/S056852810001798-8
Regional petroleum geology
Section editor – PhD in geology and mineralogy Makarevich V.N.
Article # 42_2018 submitted on 10/04/2018 displayed on website on 11/30/2018
16 p. Kalacheva L.P., Rozhin I.I., Sivtsev A.I.
pdf Studying the possibility of hydratе formation and salt deposition in the bottom hole of wells of Chayanda oil-gas-condensate field
The actual problems of development of the Chayanda oil-gas-condensate field, related to the features of the geological characteristics of productive horizons and reservoir fluids, are considered. To compile recommendations for reducing the risks of natural gas production, the probability of hydrate formation and salt depositions is estimated using the example of the botuobinsky productive horizon.
The equilibrium conditions of hydrate formation are calculated based on the physicochemical properties of formation fluids. It is concluded that in the development and exploitation of the Chayanda oil-gas-condensate field due to an abnormally low reservoir temperature, in spite of the high mineralization of the formation water, it is possible to form gas hydrates. The minimum concentrations of a calcium chloride solution and a water-methanol solution that prevent hydrate formation at a characteristic reservoir temperature are determined. It is established that an increase in the mineralization of calcium chloride solutions leads to the concentration in the clathrate phase of C2-C4 hydrocarbons and to an increase the fat coefficient of gas. It is shown that mixing of highly mineralized formation waters with a water-methanol solution can lead to salt depositions in the bottom hole zone of wells.

Keywords: natural gas, hydrate formation, stratum water, mineralization, water-methanol solution, salt deposition, Chayanda oil-gas-condensate field, Nepа-Botuoba anteclise.
article citation Kalacheva L.P., Rozhin I.I., Sivtsev A.I. Izuchenie vozmozhnosti gidratoobrazovaniya i soleotlozheniya v prizaboynoy zone skvazhin Chayandinskogo neftegazokondensatnogo mestorozhdeniya [Studying the possibility of hydratе formation and salt deposition in the bottom hole of wells of Chayanda oil-gas-condensate field]. Neftegazovaya Geologiya. Teoriya I Praktika, 2018, vol. 13, no. 4, available at: http://www.ngtp.ru/rub/2018/42_2018.html
DOI https://doi.org/10.17353/2070-5379/42_2018
References
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Kalacheva L.P., Fedorova A.F., Portnyagin A.S. Izuchenie vliyaniya mineralizatsii modelnoy plastovoy vody hlor-kaltsievogo tipa na protsessy obrazovaniya i razlozheniya gidratov prirodnogo gaza [Study of the influence of mineralization of model formation water of chlorine-calcium type on the processes of formation and decomposition of natural gas hydrates]. International Journal of Applied and Fundamental Research, 2016, no. 6-4, p. 719–722.
Kalacheva L.P., Rozhin I.I. Vliyanie sostava vod khloridno-kal'tsievogo tipa na svoystva gidratov prirodnogo gaza [The influence of the chloride-calcium-type water composition on the properties of natural gas hydrates]. Neftegazovaya Geologiya. Teoriya i Praktika, 2017, vol. 12, no. 3, available at: http://www.ngtp.ru/rub/9/25_2017.pdf. DOI: https://doi.org/10.17353/2070-5379/25_2017
Kalacheva L.P., Rozhin I.I., Fedorova A.F. Izuchenie zavisimosti protsessov obrazovaniya i razlozheniya gidratov prirodnogo gaza ot himicheskoy prirody rastvorov elektrolitov imitiruyushchih plastovye flyuidy [The study of the dependence of the processes of formation and decomposition of natural gas hydrates on the chemical nature of solutions of electrolytes simulating formation fluids]. International Journal of Applied and Fundamental Research, 2016, no. 8 (Part 4), p. 565–569.
Kalacheva L.P., Rozhin I.I., Fedorova А.F. Izuchenie vliyaniya mineralizatsii plastovoy vody na protsess gidratoobrazovaniya prirodnyh gazov mestorozhdeniy vostoka Sibirskoy platformy [The study of the stratum water mineralization influence on the hydrate formation process of the natural gas from the East Siberian platform fields]. SOCAR Proceedings, 2017, no.2, p. 56–61.
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Preduprezhdenie i likvidatsiya gazovyh gidratov v sistemah dobychi gaza [Prevention and Elimination of Gas Hydrates in Gas Production Systems]. V.A. Istomin, V.G. Kvon. Moscow: “IRTs Gazprom”, 2004, 509 p.
Safronov A.F. Geologiya nefti i gaza [Geology of oil and gas]. Yakutsk, YAF Izd-va SO RAN, 2000, 166 p.
Sloan E.D., Koh C.A. Clathrate hydrates of natural gases. Boca Raton: Taylor&Francis Group/CRC Press, 2008, 720 p.
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Spravochnik po rastvorimosti. V 3 ch. Tom II. Troynye i mnogokomponentnye sistemy. Kniga 2 [Handbook of Solubility. At 3 hours. Volume II. Triple and multicomponent systems. Book 2]. V.B. Kogan, V.M. Fridman, V.V. Kafarov. Moscow-Leningrad, Izd-vo AN SSSR, 1963, 1122 p.
Troitsky V.M., Sokolov A.F., Istomin V.A., Rassokhin S.G., Vankov V.P., Mizin A.V., Alemanov A.E. Fizicheskoe modelirovanie protsessov gidratoobrazovaniya v rezhime filtratsii prirodnogo gaza v porovoy srede Chayandinskogo neftegazokondensatnogo mestorozhdeniya [Physical modeling of the hydrate formation processes in the regime of natural gas filtration in the porous environment of the Chayandinskoye field] Vesti gazovoy nauki: Aktualnye voprosy issledovaniy plastovyh sistem mestorozhdeniy uglevodorodov. Moscow, Gazprom VNIIGAZ, 2015, no. 4(24), p. 99-109.
Vody neftyanyh i gazovyh mestorozhdeniy SSSR: Spravochnik [Waters of oil and gas fields of the USSR]. Pod red. L.M. Zor’kina. Moscow, Nedra, 1989, 382 p.
Hard-extracted reserves, unconventional hydrocarbon sources
Section editor – PhD in geology and mineralogy Petukhov A.V.
Article # 25_2017 submitted on 05/22/2017 displayed on website on 07/07/2017
13 p. Kalacheva L.P., Rozhin I.I.
pdf  The influence of the chloride-calcium-type water composition on the properties of natural gas hydrates
The properties of natural gas hydrates obtained from mineralized solutions of chloride-calcium type of different composition were investigated. It is established that, depending on the type of prevailing cation in the solution, the thermodynamic conditions of hydrate formation, the gas content of hydrates, their texture, the component composition of the gas in the solid phase are changed. During hydrate formation, a dry natural gas is converted to a fatty gas with a higher calorific value. The study of dissociation processes of hydrates showed an increase of the decomposition rate of hydrates obtained in electrolytes solutions.

Keywords: natural gas hydrates, mineralization of stratum waters, hydrate formation, gas content of hydrates, component composition of gas-hydrate-forming agent, hydrate texture, kinetics of hydrate decomposition.
article citation Kalacheva L.P., Rozhin I.I. Vliyanie sostava vod khloridno-kal'tsievogo tipa na svoystva gidratov prirodnogo gaza [The influence of the chloride-calcium-type water composition on the properties of natural gas hydrates]. Neftegazovaya Geologiya. Teoriya I Praktika, 2017, vol. 12, no. 3, available at: http://www.ngtp.ru/rub/9/25_2017.pdf
DOI https://doi.org/10.17353/2070-5379/25_2017
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