2D ray-tracing method analysis targeting common reflection points
The ray-tracing Method is the method that assumes underground layers are uniform,continuous,and layered me-dium,using Huygens-Fresnel principle,Fermat's principle,Snell's law to calculate the ray path from shots to receivers.The ray-tracing module of mainstream design software also relies on the ray path calculation from shots to receivers to program and sim-ulate.However,as the common ray tracing method is not based on the target layers,only a little model simulation software could show the ray path of the dedicated layer section.The mainstream design software could not show the effective fold cover-age of the dedicated reflection points and CRP shot gathering.Therefore,based on seismic wave ray propagation theory,re-searchers proposed the ray tracing method,taking shots or receivers as start and CRP as targets,and then programming with MATLAB to calculate the effective fold coverage,shot gather of different reflection points,guide the shots optimization,achieve more uniform sampling of the 2D exploration target layers.
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