METHOD FOR SHALLOW VIBRATION SEISMIC EXPLORATION Russian patent published in 2023 - IPC G01V1/00 G01V1/02 

FIELD: geophysics.

SUBSTANCE: used when carrying out seismic exploration in karst zones. A method for shallow vibration seismic exploration is proposed, based on the excitation and recording of vibrational seismic oscillations and including the correction of excited signals by increasing the relative intensity of the spectrum component for oscillations of exploration interest. According to the claimed solution, it is proposed to additionally excite and record oscillations after the resonant frequency of at least one of the signals that needs to be amplified is determined. Strengthening the useful signal can be achieved by reducing the rate of change in the frequency of the excited signal in the frequency range containing each of the resonant frequencies generated by the objects under study. In one of the embodiments of the invention, seismic vibrations are recorded repeatedly, seismic wave fields are subtracted, and the change in the state of the object being studied is estimated by the change in the resonant frequency.

EFFECT: improving the quality of shallow vibration seismic exploration.

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