Abstract
Dynamics of acoustic signal passing through a bubble screen is investigated. The case when the gas inside the methane bubbles is in hydrate formation conditions is considered. Influence of the hydrate formation process, the initial radius of bubbles and the gas content on the value of the attenuation coefficient and the phase velocity of wave propagating through the deep-sea bubble screen have been studied. Coefficients of reflection and passage of sound waves are obtained at boundaries separating areas of single-phase and two-phase zones. It has been found that the hydrate formation process increases the wave attenuation coefficient by more than two orders of magnitude in the low frequency area (less than 1 kHz).
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