SEISMIC SURVEY METHOD Russian patent published in 2024 - IPC G01V1/00 G01V1/28 G01V1/30 

FIELD: geophysical surveys.

SUBSTANCE: invention relates to geophysical research (seismic exploration) and can be used to detect seismic inhomogeneities of the earth's crust in the range of depths from 1 m to 50 km. In the disclosed seismic exploration method, correction coefficients are established for each seismic station based on the preliminary determination of the amplitude non-identity of the measuring channels of the seismic stations in the frequency band of the microseismic signal by all seismic stations at one point for a time sufficient to establish stationarity of the amplitude spectrum of the microseismic signal, determining the microseismic amplitudes depth referencing coefficient K, recording the microseismic signal by at least two seismic stations, one of which is fixed as a base station, and the rest as measuring seismic stations move along profiles or a network with a pitch designed for hitting at least two pickets on the desired inhomogeneity, determining the amplitude spectra of the recorded microseismic signal taking into account the corresponding correction factor for each seismic station, amplitude spectra of measuring seismic stations are normalized to base station, depth H of microseism amplitudes is calculated, determining the spatial position of the amplitude of microseisms at a depth H along the path passing through the installation point of the measuring seismic station and which is the normal to the trajectory of the microseismic motion, for each measured frequency and constructing a seismic model reflecting the speed of propagation of microseisms in the geological environment, based on the spatial position of the amplitudes of the microseisms.

EFFECT: high probability of detecting geological structures, rapidness and ease of implementation.

3 cl, 2 dwg