AVO反演预处理中的检波器非径向接收能量补偿

英文篇名：Compensation for non-vertical received energy of geophone in preprocessing of AVO inversion
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：苑春方 ; 余钦范 ; 彭苏萍 ; 彭晓波 ; 杨超 ; 陈云
英文作者：Yuan Chun-fang ; Yu Qin-fan ; Peng Su-ping ; Peng Xiao-bo ; Yang Chao and Chen Yun.School of Safety and Resource Engineering ; China University of Mining and Technology ; Beijing City ; 100063 ; China
中文关键词：地震数据处理 ; AVO反演 ; 非径向接收 ; 非零炮检距 ; 非径向能量损失 ; 能量补偿
英文关键词：seismic data processing ; AVO inversion ; non-vertical receiving ; non-zero offset ; non-vertical energy loss ; energy compensation
出版日期：2007-02-15
机构：中国矿业大学(北京)资源与安全工程学院,中国地质大学(北京)地球物理与信息技术学院,中国矿业大学(北京)资源与安全工程学院,中国矿业大学(北京)资源与安全工程学院,海军航空工程学院电子信息工程系,中国矿业大学(北京)资源与安全工程学院,
年：2007
期：01
出版单位：石油地球物理勘探

摘要

在地震勘探中,当炮检距非零时,检波器接收方向与反射波传播方向的夹角是非零的(即非径向接收),这一非零夹角必将产生能量损失,进而对AVO反演产生显著影响。为此本文根据Snell定律导出非径向损失补偿公式,以模型实例讨论了非径向接收对反射系数的影响,并提出了一种简单而有效的非径向能量损失补偿方法。对比用该方法做非径向损失补偿前后的AVO反演结果,其差异显著,说明本文方法能够明显改善AVO反演的质量。
In seismic exploration, the angles between the geophone receiving directions and reflection propagating directions are non-zero for non-zero offsets (non-vertical receiving), which should make the energy loss and further produce significant influence on AVO inversion. For that reason, the paper induced compensation formula for non-vertical loss based on Snell's law, discussed the influence of non-vertical receiving on reflection coefficients by the cases of model, and presented a simple and effective compensation method for non-vertical energy loss. The AVO inversions of pre- and post-compensation for non-vertical loss implemented by this method demonstrated significant difference between them,and showed the method presented in the paper can greatly improve the quality of AVO inversion.

引文

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