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Applying Wave Logica Method for Geophysical Prospecting
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geomodel 2018, Sep 2018, Volume 2018, p.1 - 5
Abstract
There are two main approaches to studying wave phenomena: obtaining exact analytical expressions and applying the ray-tracing method. It is impossible to obtain exact analytical solutions for more complex geological models, e.g., geological models of the shelf zone, fractured zones. When using the ray-tracing method and the geometric approximation, the features of the wave fronts are neglected, which are important in heterogeneous media. A novel approach to analysis of visualized numerical solutions of wave equations, taking into account the heterogeneous structure of geological models typical for deposits, is proposed. This approach is not approximate, in contrast to the geometric approximation, and at the same time it allows to determine which of these geological models the construction of exact particular analytic solutions of the wave equation is difficult or impossible for. Examples of application of the Wave Logica method for wave processes typical for seismic prospecting under various conditions, on which new methods for constructing velocity models can be based, obtaining high-quality migration images and optimizing observation systems are considered.