| Aiming at the exploration complicated geology body characteristic of lava, through system study on multi-components seismic acquisition, processing and interpretation methods, the paper obtains three objectives. Firstly, determine the potential ability enhancing resolution with digital geophone. Secondly, form the original static method and PSTM method for converted wave. Finally, set up a standard processing flow of 2D3C seismic data for deep lava exploration.The seismic data comparison between from digital geophone and from simulation geophone indicates that the frequency bandwidth of digital geophone is wider 10~15Hz. But the signal and noise (S/N) ratio is lower. The comparison of stack profiles shows that small faults are clearer from digital geophone. High frequency end attenuation of spectrum is slower than analog detector.This paper brings forward converted wave combination static method, which is combined near-surface model method based on three-component micro-logging with common receiver gathers stack coherent method. The model method solved long-wave static problem, and coherent method can solve short-wave static problem. The combination of the two methods can resolve static problem of P-SV and remove artificial structure for the influence of near-surface. Obtain very good converted wave seismic profile.Convert wave PSTM method is put forward. The technology of PSTM avoids sorting CCP gathers and application effect is good. Converted wave profile breakpoint and fault section are clearer, solve converted wave slant layer migration and diffracted wave constringency. Set up a standard processing flow of 2D3C seismic data for deep lava exploration. Form the original static method and PSTM method for converted wave, finish 6 2D survey lines longitudinal wave and converted wave seismic data processing.
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