| 基于扩展伪多道匹配的保幅型多次波压制方法 |
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| 引用本文： | 李振春,刘建辉,郭朝斌,郭书娟,张传强. 基于扩展伪多道匹配的保幅型多次波压制方法[J]. 石油地球物理勘探, 2011, 0(2) |
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| 作者姓名： | 李振春 刘建辉 郭朝斌 郭书娟 张传强 |
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| 作者单位： | 中国石油大学(华东)地球资源与信息学院;中海石油(中国)有限公司天津分公司; |
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| 基金项目： | 国家973课题(2007CB209605)资助 |
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| 摘 要： | 波动方程预测减去法压制多次波主要分为两步:多次波模型预测和多次波匹配相减。两步骤同时决定着最终多次波压制效果的好坏。本文在现有SRME方法基础上进行了改进。为了实现保幅条件下的多次波压制,除在匹配过程中采用扩展伪多道匹配方法之外,提出了三点改进:①按多次波阶次进行预测和匹配;②匹配前有效能量保持;③匹配过程中迭代应用短滤波器。通过Sigsbee2B模型及实际资料试算,表明本文方法能够在较好保持有效能量的前提下得到更为理想的多次波压制剖面。
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| 关 键 词： | 多次波压制 扩展伪多道匹配 屏蔽滤波器 高阶多次波 保幅 |
Amplitude-preserved multiple suppression based on expanded pseudo-multi-channel matching |
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| Li Zhen-chun,Liu Jian-hui,Guo Chao-bin,Guo Shu-juan , Zhang Chuan-qiang..School of Earth Resources , Information,China University of Petroleum,Qingdao,Sh,ong,,China.Bohai Research Institute of Exploration , Development,CNOOC,Tianjin,,China. Amplitude-preserved multiple suppression based on expanded pseudo-multi-channel matching[J]. Oil Geophysical Prospecting, 2011, 0(2) |
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| Authors: | Li Zhen-chun Liu Jian-hui Guo Chao-bin Guo Shu-juan Zhang Chuan-qiang..School of Earth Resources Information China University of Petroleum Qingdao Sh ong China.Bohai Research Institute of Exploration Development CNOOC Tianjin China |
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| Affiliation: | Li Zhen-chun1,Liu Jian-hui2,Guo Chao-bin1,Guo Shu-juan1 and Zhang Chuan-qiang1.1.School of Earth Resources and Information,China University of Petroleum,Qingdao,Shandong,266555,China2.Bohai Research Institute of Exploration and Development,CNOOC,Tianjin,300452,China |
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| Abstract: | The wave-equation-based multiple attenuation method mainly consists of two steps:multiple prediction and multiple matching subtraction.The effectiveness of multiple suppression depends on these two steps.Here an improved approach is introduced.On the basis of SRME and the expanded pseudo-multi-channel matching,we propose three strategies to achieve the multiple suppression in the condition of amplitude preservation: 1) Multiple prediction and matching according to orders;2) Effective energy preserving befor... |
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| Keywords: | multiple suppression expanded pseudo-multi-channel matching masking filter high-order multiple amplitude-preservation |
| 本文献已被 CNKI 等数据库收录！ |
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