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Influence of intergranular and fractured porosity on the electrical resistivity of reservoirs of the Chayandinsky field (Eastern Siberia)
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
Journal: Geophysical research
Tome: 23
Number: 2
Year: 2022
Pages: 5-17
UDK: 550.83; 38.53.19
DOI: 10.21455/gr2022.2-1
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Zhukov V.S. Influence of intergranular and fractured porosity on the electrical resistivity of reservoirs of the Chayandinsky field (Eastern Siberia) // . 2022. Т. 23. № 2. С. 5-17. DOI: 10.21455/gr2022.2-1
@article{ZhukovInfluence2022,
author = "Zhukov, V. S.",
title = "Influence of intergranular and fractured porosity on the electrical resistivity of reservoirs of the Chayandinsky field (Eastern Siberia)",
journal = "Geophysical research",
year = 2022,
volume = "23",
number = "2",
pages = "5-17",
doi = "10.21455/gr2022.2-1",
language = "English"
}
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Keywords: rock, porosity, fracture porosity, intergranular porosity, electrical resistivity, formation factor
Аnnotation: The results of laboratory studies of the influence of intergranular and fractured porosity of the reservoirs of the Chayandinsky field (Eastern Siberia) on the electrical resistivity and the formation factor under conditions simulating reservoir conditions are presented. It is shown that with an increase in the intergranular and total porosity of rocks, the electrical resistivity also decreases. No reliable statistical dependence was found for fracture porosity. When the fracture porosity of the studied rock samples is 0.2 or more of the total porosity, their electrical conductivity is practically determined by the electrical conductivity of the fractures. It is revealed that the cementation index in the Archie–Dakhnov equation is related to the value of fracture porosity, and for the studied samples in the case of interconnected fractures it is 1.00, and in the presence of only intergranular porosity is equal to 2.36.
The difference in the influence of intergranular and fracture porosities on the electrical resistivity of rocks and the formation factor is shown. The effect of intergranular porosity is well described by the Archie–Dakhnov equation. The presence of an interconnected fracture porosity is approximated by a special case of the Aguilera equation. The obtained values of intergranular and fracture porosity indicate that the fracture porosity of the studied samples consists of cracks that are weakly interconnected. For the real values of intergranular and fracture porosity of the studied rock samples, the formation factors are calculated using the Archie–Dakhnov and Aguilera equations, which describe adequately the dependences of the formation factor on the porosity of rocks and can be used both for calculating hydrocarbon reserves and for designing the field development process.
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Szalai S., Kovács A., Kuslits L., Facskó G., Gribovszki K., Kalmár J., Szarka L., Characterization of Fractures and Fracture Zones in a Carbonate Aquifer Using Electrical Resistivity Tomography and Pricking Probe Methods, Journal of Geoscience and Environment Protection, 2018, no. 6, pp. 1-21. doi: 10.4236/gep.2018.64001
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Zhukov V.S., Assessment of fracturing of reservoirs by the velocity of propagation of elastic waves, Vesti gazovoi nauki (Lead Gas Science), 2012, no. 1(9), pp. 148-152. [In Russian].
Zhukov V.S., Sposob opredeleniya treshchinnoi poristosti porod (Method of Rock Fractured Porosity Determination), Patent RU 2516392, 20.05.2014, Bull. no. 8. [In Russian].
Zhukov V.S., Kuzmin Y.O., The Influence of Fracturing of the Rocks and Model Materials on P-Wave Propagation Velocity: Experimental Studies, Izvestiya. Physics of the Solid Earth, 2020, vol. 56, no. 4, pp. 470-480. DOI 10.1134/S1069351320040102
Zhukov V.S., Lyugay D.V., Opredelenie fil'tratsionno-emkostnykh i uprugikh svoistv i elektricheskikh parametrov obraztsov gornykh porod pri modelirovanii plastovykh uslovii (Determination of filtration-capacitive and elastic properties and electrical parameters of rock samples in modeling formation conditions): Educational and methodological manual, Moscow: OOO Gazprom VNIIGAZ, 2016, 56 p. [In Russian].
Zhukov V.S., Motorygin V.V., Influence of various types of porosity on elastic wave velocities and electrical conductivity of collectors of the Chayandinsky deposit, Vesti gazovoi nauki (Lead Gas Science), 2017. no. 2(30), pp. 223-233. [In Russian].
Amadu C.C., Gawu S.K.Y., Abanyie K.S., Experimental Study of Electrical Resistivity to Rock Fracture Intensity and Aperture Size, International Journal of Physics, 2018, vol. 6, no. 3, pp. 85-92.
Archie G.E., The Electrical resistivity Log as an Aid in Determining Some Reservoir Characteristics, Transactions of the AIME, 1942, vol. 146, pp. 54-62.
Avaliani Z.S., Dependence of the electrical properties of rocks and minerals on fracturing and temperature, Cand. Sci. (Phys.- Math.) Dissertation, Tbilisi: Institute of Geophysics of the Academy of Sciences of the Georgian SSR, 1984, 167 p. [In Russian].
Barsukov O.M., On the connection of electrical resistance of rocks with tectonic processes, Izvestiya AN SSSR. Fizika Zemli (Izvestia of the Academy of Sciences of the USSR. Physics of the Earth), 1970, no. 1, pp. 84-89. [In Russian].
Dakhnov V.N., Geofizicheskie metody opredeleniya kollektorskikh svoistv i neftegazonasyshcheniya gornykh porod. 2-e izdanie, pererabotannoe i dopolnennoe (Geophysical methods for determining reservoir properties and oil and gas saturation of rocks. 2-nd edition, revised and enlarged), Moscow: Nedra, 1985, 310 p. [In Russian].
Dakhnov V.N., Karotazh skvazhin: Interpretatsiya karotazhnykh diagramm (Well logging: Interpretation of logging diagrams), Moscow, St. Petersburg: Gostoptekhizdat, 1941, 496 p. [In Russian].
Jones G., Sentanac P., Zielinski M., Desiccation Cracking using 2-D and 3-D Electrical Resistivity Tomography: Validation on a Flood Embankment, Journal of Applied Geophysics, 2014, vol. 106, pp. 196-211. https://doi.org/10.1016/j.jappgeo.2014.04.018
Kobranova V.N., Petrofizika. Uchebnik dlya vuzov. Izdanie 2-e, dopolnennoe i pererabotannoe (Petrophysics. Textbook for universities. 2-nd edition supplemented and revised), Moscow: Nedra, 1986, 392 p. [In Russian].
Kuzmin Y.O., Induced Deformations of Fault Zones, Izvestiya. Physics of the Solid Earth, 2019, vol. 55, no. 5, pp. 753-765. DOI 10.1134/S1069351319050069
Kuzmin Yu.O., Recent anomalous geodynamics of the subsurface induced by the development of oil and gas fields, Fundamental'nyi bazis novykh tekhnologii neftyanoi i gazovoi promyshlennosti. Vyp. 2 (Fundamental basis of new technologies of the oil and gas industry. Vol. 2), Moscow: GEOS, 2002, pp. 418-427. [In Russian].
Kuzmin Yu.O., Recent geodynamics of faults and ecological and industrial safety of oil and gas facilities, Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii (Geology, geophysics and development of oil and gas fields), 2007, no. 1, pp. 33-41. [In Russian].
Nechay A.M., Questions of quantitative assessment of secondary porosity of fractured reservoirs of oil and gas, Prikladnaya geofizika (Applied Geophysics), 1964, vol. 38, pp. 201-212. [In Russian].
Parkhomenko E.I., Elektricheskie svoistva gornykh porod (Electrical properties of rocks), Moscow: Nauka, 1965, 164 p. [In Russian].
Parkhomenko E.I., Bondarenko A.T., The influence of uniaxial pressure on the electrical resistance of rocks, Izvestiya AN SSSR. Seriya: Geofizicheskaya (Izvestia of the Academy of Sciences of the USSR. Series: Geophysical), 1960, no. 2, pp. 326-332. [In Russian].
Ryazantsev P.A., Assessment of fracturing of a rock massif based on electrotomography models, Geofizika (Geophysics), 2015, no. 1, pp. 41-50. [In Russian].
Sizin P.E., Shkuratnik V.L., Theoretical assessment of the influence of micro-fracturing of rocks on their conductivity in the Maxwell approximation, Gornyi informatsionno-analiticheskii byulleten' (nauchnotekhnicheskii zhurnal) (Mining information and analytical bulletin (scientific and technical journal)), 2015, no. 3, pp. 212-218. [In Russian].
Sobolev G.A., Semerchan A.A., Salov B.G., Shpettsler Kh.A., Sondergel'd K.Kh., Badanov V.N., Kol'tsov A.V., Los' V.F., Nasimov R.M., Ponomarev A.V., Stakhovskii I.R., Terent'ev V.A., Turetskii I.M., Forerunners of the destruction of a large sample of rock, Izvestiya AN SSSR. Fizika Zemli (Izvestia of the USSR Academy of Sciences. Physics of the Earth), 1982, no. 8, pp. 29-43. [In Russian].
Szalai S., Kovács A., Kuslits L., Facskó G., Gribovszki K., Kalmár J., Szarka L., Characterization of Fractures and Fracture Zones in a Carbonate Aquifer Using Electrical Resistivity Tomography and Pricking Probe Methods, Journal of Geoscience and Environment Protection, 2018, no. 6, pp. 1-21. doi: 10.4236/gep.2018.64001
Tiab D., Donaldson E.C., Petrophysics: Theory and Practice of Measuring Reservoir Rock and Fluid Transport Properties, 2nd ed., Oxford: Gulf, 2004, 866 р.
Vendelstein B.Yu., Rezvanov R.A., Geofizicheskie metody opredeleniya parametrov neftegazovykh kollektorov (Geophysical methods for determining the parameters of oil and gas reservoirs), Moscow: Nedra, 1978, 318 p. [In Russian].
Zhukov V.S., Assessment of fracturing of reservoirs by the velocity of propagation of elastic waves, Vesti gazovoi nauki (Lead Gas Science), 2012, no. 1(9), pp. 148-152. [In Russian].
Zhukov V.S., Sposob opredeleniya treshchinnoi poristosti porod (Method of Rock Fractured Porosity Determination), Patent RU 2516392, 20.05.2014, Bull. no. 8. [In Russian].
Zhukov V.S., Kuzmin Y.O., The Influence of Fracturing of the Rocks and Model Materials on P-Wave Propagation Velocity: Experimental Studies, Izvestiya. Physics of the Solid Earth, 2020, vol. 56, no. 4, pp. 470-480. DOI 10.1134/S1069351320040102
Zhukov V.S., Lyugay D.V., Opredelenie fil'tratsionno-emkostnykh i uprugikh svoistv i elektricheskikh parametrov obraztsov gornykh porod pri modelirovanii plastovykh uslovii (Determination of filtration-capacitive and elastic properties and electrical parameters of rock samples in modeling formation conditions): Educational and methodological manual, Moscow: OOO Gazprom VNIIGAZ, 2016, 56 p. [In Russian].
Zhukov V.S., Motorygin V.V., Influence of various types of porosity on elastic wave velocities and electrical conductivity of collectors of the Chayandinsky deposit, Vesti gazovoi nauki (Lead Gas Science), 2017. no. 2(30), pp. 223-233. [In Russian].
