Modification of a Mathematical Model of Non-Isothermal Flow in an Oil-Kerogen-Containing Reservoir Taking Thermal Degradation of Kerogen into Account
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This paper deals with modification of a mathematical model for the multicomponent non-isothermal flow of oil and gas considering the processes of thermal degradation of kerogen upon heating of oil-kerogen-containing reservoirs. A system of differential equations that describe thermal degradation is formulated based on the data on testing a thermal-gas method at the deposit of the Bazhenov formation, as well as using the data from laboratory pyrolytic studies. The one-dimensional initial-boundary problem that is obtained is solved using numerical methods. The numerical experiments were carried out at different values of parameters for two models: the classical model of multi-component three-phase flow and the model supplemented by the equations that describe thermal degradation. The computational results obtained based on the two different models are compared; the advantages of the model proposed in this paper are shown.
Keywords:thermal degradation kerogen Bazhenov formation multi-component non-isothermal flow.
This paper was supported by the Russian Foundation for Basic Research (grant no. 15-07-99584).
- 1.G. Vygon, A. Rubtsov, S. Klubkov, et al., Unconventional Oil: Will Bazhen Become the New Bakken? (Skolkovo, 2013).Google Scholar
- 2.V. Kuuskraa, S. Stevens, and K. Moodhe, Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States (U.S. Department of Energy, Washington, 2013).Google Scholar
- 3.F. Feng and I. Y. Akkutlu, in Proc. SPE Asia Pacific Unconventional Resources Conf. and Exhibition, Brisbane, Australia, 2011, p. SPE-177005-MS.Google Scholar
- 4.K. Gerke, M. V. Karsanina, T. O. Sizonenko, et al., in Proc. SPE Russian Petroleum Technology Conf., Moscow, Russia, 2017, p. SPE-187874-MS.Google Scholar
- 5.M. Stukan and W. Abdaliah, in Proc. SPE Middle East Oil & Gas Show and Conf., Manama, Bahrain, 2015, p. SPE-172589-MS.Google Scholar
- 6.N. Okamoto, Y. Liang, S. Murata, et al., in Proc. SPE Asia Pacific Unconventional Resources Conf. and Exhibition, Brisbane, Australia, 2015, p. SPE-176989-MS.Google Scholar
- 7.R. Kou, S. F. K. Alafnan, and I. Y. Akkutlu, in Proc. 78th EAGE Conf. and Exhibition, Vienna, Austria, 2016, p. SPE-180112-MS.Google Scholar
- 10.A. Suhag, R. Ranjith, F. Aminzadeh, et al., in Proc. SPE Annual Technical Conf. and Exhibition, San Antonio, Texas, United States, 2017, p. SPE-187112-MS.Google Scholar
- 11.I. Y. Akkutlu and Y. C. Yortsos, SPE J. 10 (4), SPE-75128-PA (2005).Google Scholar
- 12.Y. Hu, D. Devegowda, and R. F. Sigal, in Proc. SPE Annual Technical Conf. and Exhibition, Amsterdam, Netherlands, 2014, p. SPE-170915-MS.Google Scholar
- 13.K. Aziz and A. Settari, Petroleum Reservoir Simulation (Applied Science, 1979).Google Scholar
- 14.R. D. Kanevskaya, Mathematical Simulation of Hydrodynamic Processes of Hydrocarbon Reserve Development (IKI, Izhevsk, 2002).Google Scholar
- 15.K. S. Basniev, I. I. Kochina, and V. M. Maksimov, Subsurface Fluid Mechanics (Nedra, Moscow, 1993).Google Scholar
- 16.https://webbook.nist.gov/chemistry/fluid/.Google Scholar
- 17.A. T. Corey, Prod. Mon. 19, 38 (1954).Google Scholar
- 18.O. K. Bazhenova, K. K. Burlin, B. A. Sokolov, and V. E. Khain, Geology and Geochemistry of Oil and Gas (Moscow, 2004).Google Scholar
- 20.K. A. Shchekoldin, Candidate’s Dissertation in Engineering (Gubkin Russian State Univ. of Oil and Gas, Moscow, 2016).Google Scholar
- 21.N. S. Balushkina, G. A. Kalmykov, T. A. Kiryukhina, et al., Geol. Nefti Gaza, No. 3, 48 (2013).Google Scholar