Petrophysical parameters of rocks of the Visean stage (Lokhvytsky zone of the Dnieper-Donets Depression)
The results of complex investigations of petrophysical properties of the Visean rocks from wells in Lokhvytsky zone of the DDD (sandstones and siltstones from depths 5060―5600 m and limestones from depths 5960―6200 m) are presented. The open porosity coefficient, specific and relative electrical resistivity, velocity of P-waves and S-waves, three-dimensional magnetic susceptibility of rocks are determined. The studies of electric and acoustic properties were carried out in atmospheric and simulated stratal conditions on dry and water saturated stratal model rocks. Relative decrease of the porosity coefficient with changing from atmospheric conditions to reservoir conditions is from 5,5 to 25 % (mean 11,5 %). The average value of specific electrical resistivity of sandstones is 1.2 times more than of siltstones, and 12 times more than of limestones. It has been found that due to the closure of micro-cracks and the deformation of the pore space, the electrical resistance of rocks tends to increase with pressure. There is no significant distinction in velocity parameters between dry sandstones and siltstones, however, limestones are characterized by higher velocity (approximately 30 %) of transversal waves. Saturated rocks have approximately the same average values of S-wave velocity. The average value of velocity of S-waves in sandstones is 17 % higher than in siltstones. It was established that three-dimensional magnetic susceptibility varies in wide limits. Sandstones are characterized by the highest value, this parameter for limestones is 58 times lower than for sandstones. By the mean values of the physical parameters of sandstones and siltstones, there is clearly a direct relationship between the magnetic susceptibility, density and electrical resistivity, and the reverse one with porosity. The results obtained can be used to determine the perspectivity of rocks of different composition, to modeling their properties for different depths and to quantify the structure of their pore spaces. Received dependencies between the various parameters permit to clarify the interpretation of wells geophysical researching data of the studied area.
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Vyzhva, S., Bezrodna, I. (2016). Determination of the void space structure of complex rocks using the petroacoustic studies data from the semyrenkivska area. Visnyk KNU. Heolohiya, (3), 11―17 (in Ukrainian).
Vyzhva, S., Mykhailov, V., Onyshchuk, I. (2017a). Petrophysical features of maikop series of the
Crimean-Black sea region. Visnyk KNU. Heo¬lo¬hiya, (4) 79, 12—20. http://doi.org/10.17721/ 1728-2713.79.02 (in Russian).
Vyzhva, S., Mykhailov, V., Onyshchuk, D., & Ony¬shchuk, I. (2014a). Rezervoir Rocks in Impact Structures: Electrical Parameters. Visnyk KNU. Heolohiya, (2), 31―35 (in Ukrainian).
Vyzhva, S. A., Mykhailov, V. A., Onyshchuk, D. I., & Onyshchuk, I. I. (2013). Petrophysical parameters of unconventional types of reservoir rocks from southern oil-and-gas region. Geoinformatika, (3), 17—25 (in Ukrainian).
Vyzhva, S. A., Mykhailov, V. A., & Onyshchuk, I. I. (2014b). Petrophysical parameters of rocks from the areas of eastern sector of the Dnieper-Donets depression promising for shale gas. Geofizicheskiy zhurnal, 36(2), 145―157. https://doi.org/10.24028/gzh.0203-3100.v36i1.2014.116163 (in Ukrainian).
Vyzhva, S., Onyshchuk, I., & colleagues. (2017b). Complex analytical laboratory researches of core samples of Runovshchynska area wells. Scientific and technical report. Science Park Kyiv Taras Shevchenko University, 712 p. (in Ukrainian).
Vyzhva, S., Onyshchuk, D., & Onyshchuk, V. (2012). Petroelectrical investigations of reservoir rocks of Western-Shebelynske gas condensate field. Visnyk KNU. Heolohiya, (57) 13―16 (in Ukrainian).
Vyzhva, S., Onyshchuk, V., Reva, M., & Shabatura, O. (2018). Reservoir features of the upper carbon sediments (Runovshchynska area of the Dnieper-Donets basin). Visnyk KNU. Heolohiya,(4), 30―37. http://doi.org/10.17721/1728-2713.83.04 (in Ukrainian).
Vyzhva, S. A., Reva, M. V., Hozhyk, A. P. Onyshchuk, V. I., & Onyshchuk, I. I. (2010). Petroelectrical investigations of borehole core of complexly-build reservoir rocks. Visnyk KNU. Heolohiya, (50), 4―7 (in Ukrainian).
Vyzhva, S., Shynkarenko, A., Bezrodna, I., Shchurov, I., Gafyth, I., & Solodkyi, I. (2017c). Influence of variable pressure on acoustic and volumetric properties of terrigenous reservoir rocks (on the example of Semyrenkivska area samples). Visnyk KNU. Heolohiya, (1) 76, 33―41. http://doi.org/10.17721/1728-2713.76.03 (in Ukrainian).
Dakhnov, V. N. (1975). Geophysical methods for the determination of reservoir properties and oil and gas saturation of rocks. Moscow: Nedra, 343 p. (in Russian).
Dortman, N. B. (Ed.). (1992). Petrophysics. Handbook (Vol. 1). Moscow: Nedra (in Russian).
The instruction for determining the storage capacity of rocks in production laboratories of the Ministry of Geology of the Ukrainian SSR. (1977). Lviv: Ukrainian Research Mining Institute, 40 р. (n Russian).
Karpenko, O., Mykhailov, V., & Karpenko, I. (2015). Eastern Dnieper-Donets depression: Predicting and developing hydrocarbon resources. Visnyk KNU. Heolohiya, (1), 49―54 (in Ukrainian).
Maslov, B, Onyshchuk, І., & Shynkarenko, A. (2017). Modelling of nonlinear viscoelastic properties of terrigenous-calcareous sandstones. Visnyk KNU. Heolohiya, (2), 99―105. http://doi.org/10.17721/1728-2713.77.13 (in Ukrainian).
Mykhaylov, V. A., Vyzhva, S. A., Zahnitko, V. M., Ohar, V. V., Karpenko, O. M., Onishchuk, I. I., Kurovets, S. S., Hladun, M. V., Andreyeva, O. O., & Maksymchuk, P. Ya. (2014a). Uncon¬ven¬tial sources of hydrocarbons in Ukraine. Eas¬tern oil-gas-bearing region: Analytical in¬ves¬tigations. Book IV. Kyiv: Kyiv University Pub¬lishing, 430 p. (in Ukrainian).
Mykhaylov, V. A., Kurovets, I. M., Senkov¬skyy, Yu. M., Vyzhva, S. A., Hryhorchuk, K. H., Zahnitko, V. M., Hnidets, V. P., Kar¬penko, O. M., & Kurovets, S. S. (2014b). Uncon¬vential sources of hydrocarbons in Ukraine: South oil and gas region. Book III. Kyiv: Kyiv University Publishing, 222 p. (in Ukrainian).
Nesterenko, M. Yu. (2010). Petrophysical basis of the substantiating of fluid saturation of reservoir rocks. Kyiv: UkrDHRI, 224 p. (in Ukrainian).
Оrlyuk, М., & Pashkevich, I. (2011). Magnetic characteristics and fault tectonics of the earth’s crust of the Shebelinka group of gas fields as a component of the complex search criteria for hydrocarbons. Geofizicheskiy zhurnal, 33(6), 136―151. https://doi.org/10.24028/gzh.0203-3100.v33i6.2011.116799 (in Russian).
Оrlyuk, М. I., & Drukarenko, V. V. (2018). Prediction of pathways and places of accumulation for hydrocarbons of the Chernigiv segment of the Dnieper-Donets aulacogene in relation to magnetic heterogeneity. Geofizicheskiy zhurnal, 40 (2), 123―140. https://doi.org/10.24028/gzh.0203-3100.v40i2.2018.12893 (in Ukrainian).
Sadivnyk, M., Fedoryshyn, D., Trubenko, O., & Fedoryshyn, S. (2013). Influence of Formation Pressure on the Electrical Characteristics of Rocks: Collection of scientific works of the 12th International Conference on Geoinformatics «Theoretical and Applied Aspects», Kiev (in Ukrainian).
Tiab, D., & Donaldson, E. C. (2009). Petrophysics: Theory and Practice of Measuring Reservoir Rock and Fluid Transport. Moscow: Premium Engineering, 868 p. (in Russian).
Fedoryshyn, D. D., Piatkovska, I. O., Trubenko, O. N., & Fedoryshyn, S. D. (2018). Improved methods of allocation reservoir rock from complex constructed geological sections by using mathematical statistics: Collection of scientific works of the 17th International Conference on Geoinformatics «Theoretical and Applied Aspects», Kyiv (in Ukrainian).
Orlyuk, M. I., Drukarenko, V. V., Onyshchuk, I. I., Solodkyi, I. V. (2018). The association of physical properties of deep reservoirs with geomagnetic field and fault-block tectonics in the Glyns’ko-Solokhivs’kiy oil-and-gas region. Heodynamika, (2), 71―88. https://doi.org/10.23939/jgd2018.02.071.
Orlyuk, М., Drukarenko, V., & Onyshchuk, I. (2018). Physical properties of deep reservoirs of the Glinsko-Solokhivsky oil and gas region. Electronic collection of scientific works of the ХІІ International Scientific Conference «Monitoring of Geological Processes and Ecological Condition of the Environment», 13―16 November 2018, Кyiv, Ukraine. doi: 10.3997/2214-4609.201803178.
Vyzhva, S. A., Onyshchuk, V. I., & Onyshchuk, D. I. (2017). Electrical model of Cambrian rocks from Volodymyrska area in Volyno-Podillia (Ukraine). Nafta-Gaz, (2) 90—96. doi: 10.18668/NG.2017.02.03.
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