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纵波震源激发、三分量检波器接收的三分量地震勘探技术是解决复杂油气藏勘探的有效手段.在三分量地震勘探资料处理中,转换波资料处理尤为关键,转换波资料处理的难点之一是转换波静校正.研究了非转换型折射波和转换型折射波传播规律,发现形成PPS转换型折射波的有利条件是上覆介质横波速度比下伏介质横波速度要小很多,提出了基于PPS转换型折射波的转换波静校正方法,并对实际三分量地震资料进行了处理,转换波静校正取得了较好的效果.
The three-component seismic exploration technique which is induced by longitudinal wave source and three-component geophone is an effective method to solve the complex reservoir exploration.In the three-component seismic exploration data processing, the converted wave data processing is particularly critical, and one of the difficulties of converted wave data processing is The static correction of converted wave is studied. The propagation law of non-converted refracted wave and converted refracted wave is studied. It is found that the formation of PPS converted refracted wave is favorable when the shear wave velocity of the overlying medium is much smaller than that of the underlying medium, The converted wave static correction method of refracted wave, and the actual three-component seismic data are processed, the conversion wave static correction achieved good results.