王志亮,刘波,麻旭刚,李江,董江河,夏冬明

• 1:中海石油(中国)有限公司天津分公司
• 2:中海辉固地学服务(深圳)有限公司
• 3:中国海洋大学海洋地球科学学院

摘要(Abstract)：

在海上三维常规拖缆地震采集中，联络测线方向的震源间距较为稀疏，且受缆数本文的限制该方向的检波点数极少、炮检距范围也很有限，该方向地震道数偏少严重影响了自由界面多次波预测精度。本文针对三维自由界面多次波衰减(SRME)存在的主要问题，利用时域克希霍夫反偏移构建多次波预测贡献道，在传统自由界面多次波迭代方程的基础上推导了新的三维自由界面多次波预测方程，提出了该三维自由界面多次波衰减方法应用于实际生产的迭代处理思路。理论模型实验与野外资料的处理实验结果证明了所提出方法能够有效预测自由界面多次波，在复杂海域尤其是崎岖海底区域的多次波压制中具有良好的应用前景。

关键词(KeyWords)： 多次波预测;克希霍夫反偏移;振幅随偏移距变化;地震数据处理;拖缆地震勘探

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(42074138);; 崂山实验室科技创新项目(2021WHZZB0703)资助~~

作者(Author): 王志亮,刘波,麻旭刚,李江,董江河,夏冬明

DOI: 10.16441/j.cnki.hdxb.20230247

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