- 责任者：Qin Ning (Postdoctoral Scientific Research Workstation ; Shengli Oil Field ; SINOPEC ; Dongying 257002 ; China) ; Li Zhenchun
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(9)
- 关键词：弹性波 ; elastic waves ; 成像 ; imagery
- 页码：p.3109-3117
- 图表：illus., 21 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
Under the framework of elastic vector wavefield,we have derived joint velocity tomography equations and transformation between traveltime residual and depth deviation for multi-wave,and proposed a traveltime tomography method which updates velocity of P and S wave based on ADCIGs （Angle Domain Common Imaging Gathers） of image domain.The implementation can be summarized as：first,do vector wavefield migration and extract ADCIGs of elastic multi-component data based on Gaussian beam,then apply tomography inversion equations to achieve slowness update,finally obtain joint inversion result of multi-wave.Examples from model and real dataset validate this inversion method,and it can provide prestack velocity field with high quality for joint depth migration of elastic vector wavefield.