基于多次反射等效界面模型的海上三维多次波预测与剔除Prediction and Elimination of Marine 3D Multiple Based on Multiple Reflection Equivalent Interface Model
曹艳玲,赵波,吴波,李金山,毛士博,王倩倩,都国宁
摘要(Abstract):
本文在系统分析倾斜界面多次波传播路径的基础上,提出了一种基于多次反射等效界面模型的多次波追踪与剔除方法,通过构建多次反射等效模型,将复杂的多次波反射路径转化为更易射线追踪的一次反射路径,实现了炮集域三维地震多次波的高精度射线追踪;在此基础上,再通过FK滤波算法实现了多次波的有效剔除。该方法避免了常规CMP域多次波剔除时的共面元道集覆盖次数分布不均匀以及动校畸变的问题,且可高效高精度的实现三维地震多次波的预测与剔除。理论模型检验和海上实际资料的处理结果均验证了该方法的有效性。
关键词(KeyWords): 多次波;多次反射等效界面模型;炮集域;三维地震;FK滤波
基金项目(Foundation): 山东省重大科技创新工程项目(2019JZZY010803);; 中央高校基本科研业务费专项(201964016);; 国家自然科学基金项目(42074138)资助Suported by the Major Scientific and Technological Innovation Project of Shandong Province(2019JZZY010803);; the Fundamental Research Funds for the Central Universities(201964016);; the National Natural Science Foundation of China(42074138)
作者(Author): 曹艳玲,赵波,吴波,李金山,毛士博,王倩倩,都国宁
DOI: 10.16441/j.cnki.hdxb.20200365
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