Layer-By-Layer Recursion Inversion of Interval Velocity from VSP Data
详细信息
- 责任者：Zhou Jun (School of Energy Resources ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Xie Chunhui
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：36(2)
- 关键词：垂直地震剖面 ; vertical seismic profiles
- 页码：p.242-245
- 图表：7 illus., 6 refs.
- 分类号：1600
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
This paper reports a method for inversing interval velocity layer by layer according to VSP data,whose main feature is that the path of spread rays will be divided into linear transmission and refraction transmission,and then the interval velocity is inversed from top to bottom with VSP data.5 layers level medium model is designed on the basis of matlab,and then the ray tracing method is used to synthesize VSP records for three kinds of well-source distance(300 m,1 500 m,3 000 m).The result shows that the linear method is applicable to the small well-source distance,and refraction method is applicable to all kinds of well-source distance.
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