Abstract
One of the main methods of searching for gas hydrate deposits is and acoustic logging. Since the correct processing and interpretation of seismic exploration data requires knowledge of the acoustic properties of hydrate-containing rock, wave propagation in this medium is investigated. The rock skeleton is considered to consist of grains cemented with gas hydrate, and is modeled by a homogeneous solid phase with effective parameters. The elastic moduli of the composite skeleton of the porous medium are calculated from the elastic moduli of the grain material and hydrate using a well-known method. The velocities and attenuation coefficients of linear waves are calculated within the framework of a two-velocity model of a porous medium. The calculated data are compared with the experimental data of other authors on sound velocities in hydrate-containing porous samples. The influence of the properties of the base rock, saturating fluid, and hydrate saturation on the propagation of linear waves is studied.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2021, Vol. 63, No. 4, pp. 56-63. https://doi.org/10.15372/PMTF20220406.
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Gubaidullin, A.A., Boldyreva, O.Y. & Dudko, D.N. VELOCITY AND ATTENUATION OF LINEAR WAVES IN POROUS MEDIA SATURATED WITH GAS AND ITS HYDRATE. J Appl Mech Tech Phy 63, 599–605 (2022). https://doi.org/10.1134/S002189442204006X
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DOI: https://doi.org/10.1134/S002189442204006X