摘要：As there is a difference of travel path and time between P-wave and converted-wave (C-wave), the kinematics and dynamics characteristic of these seismic waves from the same reflective subsurface layer will also be different. Therefore, event registration in P- and C-waves seismic datasets is a nonlinear inversion process. In this paper, based on the dynamic time warping (DTW) algorithm, we propose a time registration method and real field processing workflow for the time domain matching of P- and C-waves. By reviewing the classical DTW algorithm, an improved algorithm is implemented for the seismic data time domain matching of P- and C-waves. For real field data processing, by setting a constant velocity ratio of P- and S-waves, the C-wave seismic data is first transferred to the P-wave time domain to meet the conditions of using the DTW algorithm. Then the time shifts will be inverted via the improved DTW algorithm. Finally, time domain matching of the P-wave and C-wave will be implemented by using the computed time shifts. The application of the proposed method and workflow to a real field multi-wave seismic exploration dataset indicates that is feasible to handle the nonlinear problem in the P- and C-waves seismic data time matching. Moreover, we can achieve a good matching result without using the events of P- and C-waves data to constrain the event registration processing.
© 2018 SEG.

卷、期、页：p2367-2371

发表日期：2019-01-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）,国际学术会议论文集

发表期刊名称：2018 SEG International Exposition and Annual Meeting, SEG 2018

通讯作者：张一琛

第一作者：陈双全,曾联波,李向阳

论文类型：会议论文

论文概要：张一琛,陈双全,曾联波,李向阳，Time domain registration of P- and C-waves based on a dynamic time warping algorithm，2018 SEG International Exposition and Annual Meeting, SEG 2018，2019，p2367-2371

论文题目：Time domain registration of P- and C-waves based on a dynamic time warping algorithm