Considerations for Choosing the Parameters of the Technique and Quality Criteria of Seismograms in the Transition to High-Density High-Performance Surveys

Currently, in the practice of seismic studies there are trends leading to a revision of the existing system of quality control of the original seismograms:- implementation of high-performance full-azimuth 3D - systems of high density and multiplicity; - a radical increase in the number of receiving channels, the rejection of the grouping of receivers with a multiple decrease in the step between the receiving channels; - reduction of the absolute energy of a single impact with a compensatory increase in the number of impacts themselves; - relative reduction of the share of explosive seismic surveys in favor of surveys with vibration and pulse sources. The logic of the traditional approach is to select a signal against the background of noise (random, regular) with acceptable nonlinear distortions of the reflected wave spectrum. The logic of the new approach is to register the undistorted wave field of the signal and noise with the initial ratio of amplitudes, energy, spatial discreteness and multiplicity, providing the necessary quality of the useful signal in a wide frequency range at the processing stage. The substantiation of methodological parameters and criteria for assessing the quality of modern research is a non-trivial task, since it requires the preliminary identification of the most significant factors and the generalization of accumulated statistical data on the quality of the results obtained for specific conditions and traditional methodological schemes. The report presents some theoretical and empirical assumptions that allow using the idea of energy equivalence in the design of modern seismic studies