Velocity analysis method of converted wave and its application

摘要：

Velocity analysis method of converted wave is one of the important and pivotal technologies in the converted-wave data processing.Due to both the asymmetry raypath and the anisotropic effects,serious non-hyperbolic moveout effects exist in seismic data profile.Conventional velocity analysis based isotropic methods can no longer flatten the moveout.Here,we use a new four-parameter theory to evaluate these effects and process the data.These four parameters include the PS converted wave stacking velocity (Vc2),the vertical velocity ratio (γ0),the effective velocity ratio (γeff) and the anisotropy parameter (Xeff).The method utilizes the moveout information at different offsets to estimate the different parameters,and ensures that the events are properly aligned for stacking.Good results have been accepted of processing modelling data and real data of Shengli oilfield.

关键词： converted wave processing velocity analysis application result

作者: Lifei Bi Jiangping Liu Yanguang Wang Hui Wang Jiguang Li Dan Jin

作者单位: China University of Geosciences,Wuhan 430074,China Shengli Oilfield,SinoPec,Dongying,Shandong 257001 China University of Geosciences,Wuhan 430074,China Shengli Oilfield,SinoPec,Dongying,Shandong 257001,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Environmental and Engineering Geophysics(第三届环境与工程地球物理国际会议)

会议地点: 武汉

会议语种:英文

页码: 324-327

在线出版日期: 2008-06-15（万方平台首次上网日期，不代表论文的发表时间）