A Study On Seismic Scattered Wave Characteristics By Numerical Simulating

Any seismic waves change in which caused by 3-D heterogeneity in earth all can be called seismic wave scattering. Seismic exploration technique on scattered wave is one of the leading edge problems in the field of the mining seismic prospecting, energy sources prospecting in complex structure area and engineering geology prospecting. Now the seismic exploration technique on scattered wave is being researched, and there are many works to do before it is applied to production. In fact many geology problems are complex. For example mining prospecting, petroleum prospecting in mountain area, engineering prospecting in complex area etc.. when different scale heterogeneity geological bodies are together,a very complicated seismic wave field can be formed by many types wave interference each other. The complicated seismic wave field cannot be described exactly in simplex wave (for example the reflection wave, the refraction wave etc.). It is demand to solve the complex geology problems in widely seismic scattered wave theory. Thus, to study seismic exploration technique on scattered wave is widely and practicably valuable in prospecting complicated geologic structure or heterogeneity bodies. Main research contents in the article: â‘ Summing-up scattered wave characteristics systemically by study a lot of seismic and geologic models (single point, more points, layers, single body, more bodies) scattered wave numerical simulating forward and inverse results. â‘¡Analyzing the difference of seismic scattered wave and reflect wave systemically. Discuss the advantages and disadvantages of scattered wave imaging base on the reflect wave processing software. â‘¢Combined with examples analysis, studying the technique to demonstrate seismic acquisition parameters and geometry design based on the scattered wave imaging numerical simulating of seismic and geologic model. Main improvements and innovations in the article: â‘ For the first time aim at a lot of seismic and geologic models (single point, more points, layers, single body, more bodies), the scattered wave characteristics is studied and summed up systemically by numerical simulating forward and inverse method. It is based to study how to recognize and interpret scattered wave, and its acquisition and processing technique.