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Study of the Influence of Nonlinear Dynamic Loads on Elastic Modulus of Carbonate Reservoir Rocks

Author

Listed:
  • Evgenii Riabokon

    (Department of Oil and Gas Technologies, Perm National Research Polytechnic University, 614990 Perm, Russia)

  • Mikhail Turbakov

    (Department of Oil and Gas Technologies, Perm National Research Polytechnic University, 614990 Perm, Russia)

  • Nikita Popov

    (Center for Core and Reservoir Fluid Studies, Department of the Integrated Core Research, PermNIPIneft Branch of LUKOIL-Engineering LLC in Perm, 614066 Perm, Russia)

  • Evgenii Kozhevnikov

    (Department of Oil and Gas Technologies, Perm National Research Polytechnic University, 614990 Perm, Russia)

  • Vladimir Poplygin

    (Department of Oil and Gas Technologies, Perm National Research Polytechnic University, 614990 Perm, Russia)

  • Mikhail Guzev

    (Department of Oil and Gas Technologies, Perm National Research Polytechnic University, 614990 Perm, Russia)

Abstract

The paper presents the results of the experimental investigation of carbonate reservoir rocks subjected to quasistatic and nonlinear dynamic loads. During the quasistatic loading the zones of linear elasticity were determined. Dynamic loading of samples was performed at several frequencies and load amplitudes using a testing system. There were two zones found in which the elastic modulus changes nonlinearly in terms of dynamic load frequency. While the frequency of the dynamic load increases from 0 to 10 Hz the dynamic elastic modulus rises according to logarithmic law; while the frequency increases from 10 to 60 Hz elastic modulus rises according to a power law for each load amplitude. The amplitude of the longitudinal strain and phase shift decreases with increasing frequency of the dynamic load. Under the higher strain rates the rock gets stiffer in comparison with rock subjected to smaller strain rate dynamic loading. Saturation of rock samples with distilled water flattening the dependencies of dynamic Young’s modulus on frequency.

Suggested Citation

  • Evgenii Riabokon & Mikhail Turbakov & Nikita Popov & Evgenii Kozhevnikov & Vladimir Poplygin & Mikhail Guzev, 2021. "Study of the Influence of Nonlinear Dynamic Loads on Elastic Modulus of Carbonate Reservoir Rocks," Energies, MDPI, vol. 14(24), pages 1-20, December.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:24:p:8559-:d:705872
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    Cited by:

    1. Yunjuan Chen & Tao Gao & Fuqiang Yin & Xiaozhi Liu & Jun Wang, 2022. "Study on Influence of Joint Locations and Hydraulic Coupling Actions on Rock Masses’ Failure Process," Energies, MDPI, vol. 15(11), pages 1-14, May.

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