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Propagation of Acoustic Waves in a Water-Saturated Porous Medium Formed by a Gas Hydrate

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Journal of Engineering Physics and Thermophysics Aims and scope

The propagation of acoustic waves in a porous medium whose skeleton consists of a gas hydrate with pores filled with water has been studied. A system of equations is written that describes the propagation of acoustic waves in such a porous medium. A dispersion equation is obtained, on the basis of which the phase velocity of sound and the decrement of attenuation of acoustic waves are analyzed. The coefficients of reflection and passage at the "liquid–porous medium" and "porous medium–liquid" interfaces have been derived and investigated. Based on the dispersion equation and corresponding reflection and passage coefficients, the propagation of the finite-duration pulses in the porous medium is investigated. The possibility of estimating the thickness of the gas hydrate bed with the aid of acoustic waves is shown.

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Correspondence to V. L. Dmitriev.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 94, No. 6, pp. 1587–1605, November–December, 2021.

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Dmitriev, V.L., Khusainov, I.G. & Gimaltdinov, I.K. Propagation of Acoustic Waves in a Water-Saturated Porous Medium Formed by a Gas Hydrate. J Eng Phys Thermophy 94, 1563–1570 (2021). https://doi.org/10.1007/s10891-021-02437-z

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  • DOI: https://doi.org/10.1007/s10891-021-02437-z

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