Static correction and its application to seismic data of loess tableland area
XIA Chang-Liang1, 2, WANG Yong-Ming2, HU Hao2, LI Hong-Xia3, WANG Xiang-Chun1
1.School of Geophysics and Information Technology,CUGB(Beijing),Beijing 100083,China; 2.Changqing Branch,Geophysical Research Institute,BGP,CNPC,Xi'an 710021,China; 3.Research Institute of Exploration and Development, Liaohe Oil Company,Panjin 124010,China
Abstract:A new method of progressively united static correction is proposed for the serious static correction problem of seismic data of loess tableland area in southern Ordos basin.Firstly,grid tomographic inversion static method is used to solve the problem of long wavelength static;secondly,difference residual static method of first arrival is used to solve the problem of short wavelength static;finally,a new hybrid optimization method for estimating static corrections is put forward to solve residual static problem,which involves energy maximization,simulation annealing and hereditary algorithm.The practical application results of seismic data of loess tableland area show that the events of stack section of applying the above method is continuous with good consistency,and the diffraction wave characteristics of breakpoint are obvious.It is thus held that the progressively united static method can solve the static problem of seismic data obtained in this area.Good processing result can be obtained.
夏常亮, 王永明, 胡浩, 李洪霞, 王祥春. 分步逐级静校正法在黄土塬地震资料处理中的应用[J]. 物探与化探, 2018, 42(2): 339-346.
XIA Chang-Liang, WANG Yong-Ming, HU Hao, LI Hong-Xia, WANG Xiang-Chun. Static correction and its application to seismic data of loess tableland area. Geophysical and Geochemical Exploration, 2018, 42(2): 339-346.