The movement of liquids and gases through porous environments is accompanied by generation of acoustic fluctuations – filtrational noise. A spectrum of such noises depends on properties of liquids and a porous collector, and also on mode of current. In work results of laboratory experiments on research of spectral characteristics of the filtrational noise generated by a stream of compressed air, filtered through the sample of the porous environment of a real deposit are presented. Design features of experimental equipment and a detail of the conducted research are described. The interrelation of the basic frequencies and amplitudes of generated fluctuations with a current mode is revealed. Visual pictures of a spectrum of filtrational noise are presented. The received results can be used in the decision of identification problems by definition of properties and working intervals of productive layers.
43.28.Ra Generation of sound by fluid flow, aerodynamic sound and turbulence
47.56.+r Flows through porous media
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