Kirchhoff post stack migration C + + code
2016-08-23
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With improvement of the accuracy of seismic exploration, effect of anisotropy for the conventional Kirchhoff prestack depth migration effect can not be ignored. Studies using P-wave nonhyperbolic reflection travel calculating method of anisotropic parameters, sway sets the array length is much larger than that of the exploration target layer depth, the P wave travel time data contains the information can be used to determine the anisotropy parameters of VTI mediaKey Technology
Using VTI medium CMP set, the two-step extraction method of ETA parameters, first using short array seismic data to obtain RMS moveout velocity, using long array data and the horizontal velocity of the scanning method to obtain the horizontal velocity, anisotropy ETA parameters are obtained through the conversion; based on acoustic approximation in VTI media is the eikonal equation, through anisotropic ray tracing computation of travelc++
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