Abstract:Since the speciality of 3-component (3C) seismic data, the common P-wave seismic data processing approaches do not meet its requirement.Based on the characteristics of 3C seismic data, the paper carried out the practical study of several key techniques in 3C converted wave seismic data processing, including coordinate rotation of horizontal component of converted wave, computation of common converted point (CCP) of converted wave, static correction and residual static correction of converted wave, iterative computation in velocity analysis and denoise techniques of converted wave.The paper showed the good application results achieved in 3C seismic data processing of T gas field in western part of China.The distinctive differences in P-wave and PS-wave amplitudes and waveforms can be seen at the targets of final processed P-wave and PS-wave sections, which provided good basic data for comprehensive application of P- and S-waves data to joint interpretation, improvement of identified precision and successful rate of reservoir, showing good application prospect of 3C seismic exploration.