Research on Common Reflection Angle Migration in Organic Reef Geological body
详细信息
- 责任者：Zhang Zhenbo (Oilfield Engineering Research Institute ; Zhanjiang 524057 ; China) ; Liu Jieming
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2013
- 卷期：35(2)
- 关键词：礁 ; reefs ; 地震偏移 ; seismic migration
- 页码：p.221-225
- 图表：illus., 12 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
The method of common reflection angle migration(CRAM) is presented for imaging the organic reef geological body.The model analyzing shows that the CRAM has more advantages,such as amplitude retaining and high-resolution,than the Kirchhoff pre-stack depth migration,.Although the CRAM and Kirchhoff methods are both belonging to radial migration technology.the former is more fit for big dip angle reflection plane than the latter.In this paper,it indicates that tremendous changes of velocity have some effect on radial tracing and wave stabilization in CRAM by velocity modeling of the organic reef.Meanwhile,proper velocity smoothness can improve the imaging of complex geological body,and it also enhances the organic reef identification from the geological bodies.
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