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共聚焦点偏移成像方法研究

Common focus-point migration

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【Author】 Li Zhenchun 1, Zhang Kai 1, Zhang Jianlei 1, Chen Shijun 2, Wang Yanguang 2 (1. Dept. of Earth Information & Science,University of Petroleum, Dongying 257061, China; 2. The Geophysical Institute of Shengli Oilfield Co Ltd., Dongying 257022, China)

【机构】石油大学地球信息科学系；胜利油田有限公司物探研究院；胜利油田有限公司物探研究院山东东营257061；山东东营257061；山东东营257022；山东东营257022；

【摘要】共聚焦点 (CFP)偏移 (激发聚焦和检波聚焦的双聚焦偏移 )是一基于等时原理的地震成像方法。通过时空域的零走时成像原理 (CFP偏移的共聚型 )和拉冬域的零截距时间成像原理 (CFP偏移的双聚型 )分别实现构造成像 (角平均的标量成像 )和岩性成像 (考虑AVO的矢量成像 )。通过模型试算了CFP偏移的共聚型成像 ,结果表明了方法的有效性更多还原

【Abstract】 Common focus point migration (CFP), which is a bifocal migration method that focuses both in emission and detector, is a new seismic imaging method that is based on the principle of equal traveltime. Confocal version of CFP migration that is used for structural imaging was realized by the zero traveltime imaging principle in time domain. Bifocal version of CFP migration was accomplished by the zero intercept time imaging principle in Radon domain. The effectiveness of the confocal version of CFP migration was verified on a model.更多还原

【关键词】共聚焦点偏移；等时原理；聚焦算子；聚焦点响应；共聚焦点道集；共聚型成像；双聚型成像；
【Key words】 common focus point migration； the principle of equal traveltime； focusing operator； focus point re sponse； common focus point gather； confocal imaging； bifocal imaging；

【文献出处】石油物探 ,Geophysical Prospecting For Petrole , 编辑部邮箱 ,2003年01期
【分类号】P631.4
【被引频次】24
【下载频次】186

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