A New Approach for the Velocity Estimation and Depth Imaging of Converted Waves

N-01 A NEW APPROACH FOR THE VELOCITY ESTIMATION AND DEPTH IMAGING OF CONVERTED WAVES LONG D. PHAM WEIZHONG WANG and YAOHUI ZHANG Summary We present a new approach for the velocity estimation and depth imaging of convertedwaves (C-waves). Depth imaging has been an important tool for P-wave data and has recently been demonstrated to be even more important for C-wave data (SEG/EAGE Summer 2000 Research Workshop: Recent advances in shear wave technology for reservoir characterization). Though pre-stack depth migration is the most advanced imaging method it requires an accurate initial velocity model. Without an accurate initial model depth migration can