Mathematical modeling of a new method for processing a seismic signal on the example of a section of the Saratov right bank. Part 1

Abstract

The paper presents a new method of seismic exploration, which includes two receivers of acoustic signals, deepened into the rock one under the other at some distance. These receivers record seismograms which are the acoustic signals, the source of which can be the natural seismic activity of the Earth’s crust or targeted sources of acoustic signals, such as an explosion. Simulation of the direct problem of seismic exploration was performed using the COMSOL Multiphysics and MatLab software packages. The seismograms obtained during the simulation are combined and added with each other with the on the delay time shift of the input seismic pulse between the receivers. In this case, the signals that came along the vertical, “amplify” each other on the total seismogram, and non-vertical signals are damped. The correlation function of seismograms was obtained for mathematical simulation. The results of modeling the propagation of an acoustic wave in rocks and an example of processing seismograms according to the proposed algorithm are given. The presented results show that the new method of receiver location and the method of processing seismograms make it possible to obtain a cleared seismogram that can be used to solve the inverse problem of determining the parameters of the geological environment.