Propagation characteristics of converted refracted wave and its application in static correction of converted wave

Three-component seismic exploration through P-wave source and three-component geophone is an effective technique used in complicated reservoir exploration. In three-component seismic exploration data processing, one of the difficulties is static correction of converted wave. This paper analyzes propagation characteristics of non-converted and converted refracted waves, and discovers a favorable condition for the formation of converted refracted wave, i.e. the velocity of overlaying medium S wave is much lower than that of underlying medium S wave. In addition, the paper proposes the static correction method of converted wave based on PPS converted refracted wave, and processes the real three-component seismic data with better results of static correction of converted wave.