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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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一种解耦的起伏地表弹性波高斯束偏移方法
Keywords: 解耦,起伏地表,弹性波,高斯束,极性校正
Abstract:
？随着勘探开发逐步深入,成像已逐步从单纯利用纵波数据发展为弹性波数据。针对双重复杂构造探区,在弹性波高斯束偏移的基本原理中,引入高程及地表倾角信息,推导了由高斯束位移矢量表示的解耦弹性波场反向延拓公式,利用互相关成像条件且通过转换波极性校正得到起伏地表条件下的p-p波和p-s波高斯束偏移算子,发展了一种解耦的起伏地表弹性波高斯束偏移方法,此方法无须对地震数据进行纵横波分离。在实现方法的基础上,通过典型起伏地表模型的弹性波现象分析、成像结果分析及成像角道集提取,证实了解耦的起伏地表弹性波高斯束偏移成像方法的正确性、适用性及良好的成像效果。
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