Earthquake imaging method
An imaging method and imaging technology, applied in the field of exploration, can solve the problems of fuzzification of imaging results, difficulty in satisfying lithology interpretation, low amplitude fidelity of wave field bandwidth migration imaging results and low imaging resolution, etc. The effect of precise imaging results
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[0036] Such as figure 1 A flow chart of the migration imaging method provided by the embodiment of the present invention is shown. See figure 1 , the migration imaging method includes:
[0037] Step S110: performing pre-stack time migration imaging based on the measured seismic data and the root-mean-square velocity model of the medium to obtain an initial imaging result.
[0038] In the embodiment of the present invention, the pre-stack time migration imaging formula may be the Kirchhoff pre-stack time migration formula, specifically:
[0039] ,
[0040] in, τ is the two-way travel time (imaging time) perpendicular to the ground corresponding to the imaging point, x is the ground coordinate corresponding to the underground scattering point (imaging point), m is the ground coordinate corresponding to the center point, half offset The gather at the imaging point (x, τ ) at the prestack time imaging value.
[0041] In the embodiment of the present invention, before...
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