The research and application on static correction in complex surface area

摘要：

With thoroughly development of oil and gas exploration,the target area of exploration transferred from plain area to the area with complex near surface condition.In those areas severe change of near surface structure induces inhomogeneous delaytime of seismic wave traveltime and the distortion of reflection horizon on seismic profile,which affects the imaging quality of seismic profile greatly.In this paper,on the basis of analysis of different type of complex earth surface character,we analyze and summarize these static correction methods such as model method,refraction method,and tomography inversion method.We also introduce the principle,application requirement,limitation and application effect of those methods.Here we take the two-dimensional survey lines of mountainous and foothill belt area for example.With comparison and analysis of delaytime refraction correction and tomography inversion,the approved application effect of tomography inversion method can be found in solving near surface correction problem of mountainous and foothill belt area.

关键词： complex earth surface model method refraction tomography inversion

作者: Jiguang Li Yao Yao Yongjun Rui Qinglei Gu Lifei Bi Zhanyi Han

作者单位: China University of Geosciences,Wuhan 430074,China Geophysical Research Institute,Shengli Oilfield C China University of Geosciences,Wuhan 430074,China Geophysical Research Institute,Shengli Oilfield Co,Ltd.Dong Ying,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: 227-230

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）