Abstract: The invention relates to the petroleum industry. More specifically, the invention pertains to the method of detecting zones of solid particles (sand, proppant) production in a well where the solid particles are carried by fluid and gas flows, in those cases when the solid particles production zone is situated behind an impermeable barrier and there is no direct contact between the measuring instrument and the solid particles. To implement this method, at least one well operating regime is established, which is characterised by the presence of fluid flow carrying solid particles both along the wellbore and in one or more formations. At least one instrument for objective measurements of the acoustic signal amplitude is run in or pulled out of the well either at a constant speed or with intermittent stations. The acoustic signal amplitude is measured either at stations or during running in or pulling out of the well using at least one instrument for objective measurements of the acoustic signal amplitude.