1887

Abstract

Summary

In the context of high water cut of most oil fields in Russia, problem of oil recovery enhancement using modern non-stationary hydrodynamic methods of oil reservoir stimulation combined with effective tertiary oil recovery methods becomes relevant. Using Buckley-Leverett mathematical model of two-phase displacement in hydrodynamic modelling of water-flood operations leads to water saturation discontinuity in the instability zone of water-oil displacement front. Existing methods of relative permeability curves approximation for elimination of water saturation «jump» on the distribution curve Sw(x,t) do not characterize an adequate physical mechanism of the instability of water-oil displacement front, which formed in terms of hydrodynamic, capillary, molecular, inertial and gravity forces interaction. Those forces cause premature water breakthrough and thus decrease of oil recovery efficiency. This paper proposes a new approach to system optimization of nonstationary water flooding, which is to select the control strategy of production and injection wells operation conditions as well as effective geo-technical measures (including appropriate EOR and production stimulation methods). The choice is based on qualitative dynamic analysis of current and cumulative oil/water production from each well using the mathematical apparatus of quadratic polynomial dynamic systems.

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/content/papers/10.3997/2214-4609.202150063
2021-03-22
2024-04-29
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References

  1. Arnold, V.I.
    [2004] Catastrophe Theory. Springer-VerlagBerlin Heidelberg. DOI: 10.1007/978‑3‑642‑96799‑3
    https://doi.org/10.1007/978-3-642-96799-3 [Google Scholar]
  2. Buckley, S. E. & Leverett, M. C.
    [1942] Mechanism of Fluid Displacement in Sands. Society of Petroleum Engineers. doi:10.2118/942107‑G.
    https://doi.org/10.2118/942107-G [Google Scholar]
  3. Charny, I. A.
    [1963] Underground hydro-gas dynamics. Gostoptekhizdat, Moscow (in Russian).
    [Google Scholar]
  4. Thompson, J. M. T.
    [1982] Instabilities and catastrophes in science and engineering, by, wiley, Chichester.
    [Google Scholar]
  5. Shakhverdiev, A. Kh.
    [2004] System Optimization of Oil Field Development Processes. Nedra, Moscow (in Russian).
    [Google Scholar]
  6. [2017] Some conceptual aspects of systematic optimization of oil field developmentNeftyanoe Khozyaystvo - Oil Industry journal-article EID: 2-s2.0-85025679910
    [Google Scholar]
  7. Shakhverdiev, A. Kh. And Shestopalov, Yu.V.
    [2019a] Qualitative analysis of quadratic polynomial dynamical systems associated with the modeling and monitoring of oil fields. Lobachevskii Journal of Mathematics. vol.40, №10, pp.1691–1706. DOI: 10.1134/S1995080219100226
    https://doi.org/10.1134/S1995080219100226 [Google Scholar]
  8. Shakhverdiev, A. Kh.
    [2019b] System optimization of non-stationary water flooding for IOR/EOR, Neftyanoe Khozyaystvo - Oil Industry Journal, No. 1, 44–50 (in Russian). DOI: 10.24887/0028‑2448‑2019‑1‑44‑49
    https://doi.org/10.24887/0028-2448-2019-1-44-49 [Google Scholar]
  9. Shakhverdiev, A. Kh., Shestopalov, Yu.V., Mandrik, I. E., Arefiev, S.V.
    , [2019c] Alternative concept of monitoring and optimization water flooding of oil reservoirs in the conditions of instability of the displacement front. Neftyanoe Khozyaystvo - Oil Industry Journal, No. 12, 118–123 (in Russian). DOI: 10.24887/0028‑2448‑2019‑12‑118‑123
    https://doi.org/10.24887/0028-2448-2019-12-118-123 [Google Scholar]
  10. Shakhverdiev, A.Kh., Shestopalov, Y.V., Mandrik, I.E., Denisov, A.V.
    [2020] “New concept of monitoring and optimization of oil reservoir flooding under conditions of displacement front instability”. Report on the section 8. APPLICATIONS IN INDUSTRIAL AND ECONOMICS. The 7th International Conference on Control and Optimization with Industrial Applications. 26–28 August. Baku, Azerbaijan. http://www.coia-conf.org
    [Google Scholar]
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