METHOD OF DETERMINING PHYSICAL CHARACTERISTICS OF HOMOGENEOUS MEDIUM AND BOUNDARIES THEREOF Russian patent published in 2020 - IPC G01V1/28 G01V1/30 G01V1/50 

FIELD: physics.

SUBSTANCE: invention relates to geophysics and can be used to determine boundaries of homogeneous medium when processing seismic data. According to the disclosed method, a harmonic wave is recorded, which is a vibration of a physical quantity along one propagation direction in a homogeneous medium, by means of sensors along direction of oscillation propagation in at least five points located at equal distance from each other. Output signals of the sensors are converted into the corresponding complex spectral amplitudes corresponding to the frequency decomposition of the output signals. Model of propagation of a harmonic wave in a homogeneous medium is created, in which for each oscillation frequency the wave is presented in the form of downward and ascending exponentially damped harmonic waves propagating in opposite directions. Absolute values of complex spectral amplitudes of output signals of sensors at each frequency are used as initial data for equations, which compare absolute values of complex amplitudes with created model of wave propagation. Solving the obtained equations is used to determine the complete complex amplitudes of the descending and ascending waves and the complex propagation constant of the oscillations at each frequency and determining characteristics of the boundaries of the homogeneous medium based on the ratio of complex amplitudes of the descending and ascending waves, and characteristics of the homogeneous medium based on the phase velocity and the wave attenuation coefficient.

EFFECT: technical result is increased accuracy and reliability of obtained data.

7 cl, 4 dwg