A Prestack Inversion Method for Common Reflection Point Seismic Data
详细信息
- 责任者：Zhang Fanchang (College of Geo-Resource and Information ; China University of Petroleum ; Dongying 257061 ; China) ; Yin Haiyan
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2011
- 卷期：33(1)
- 关键词：地震勘探 ; seismic exploration ; 反演问题 ; inverse problem
- 页码：p.11-19
- 图表：9 illus., 14 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
This paper derived the forward operator, which is generated by the plane wave propagation in stratified elastic media. A prestack three-term inversion method which is based on Brent algorithm is then proposed. This method did not need to compute the sophisticate first order and second order derivative matrix. By dealing the constraint conditions with adaptive annealing factor and penalty function, the inversion stability is improved. By introducing K-L transform in the direction substitution, the linear dependence of searching directions is effectively prevented. The results in synthetic and real oil field data proved that the method is effective in reservoir prediction with prestack seismic data.