| 第二代Curvelet变换压制面波方法 |
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| 引用本文： | 董烈乾,李振春,王德营,刘磊,高君微. 第二代Curvelet变换压制面波方法[J]. 石油地球物理勘探, 2011, 0(6): 897-904,1012,831,832 |
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| 作者姓名： | 董烈乾 李振春 王德营 刘磊 高君微 |
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| 作者单位： | 中国石油大学(华东)地球科学与技术学院;胜利油田测井公司;中国石油长庆油田分公司第二采气厂; |
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| 基金项目： | 国家973课题(2007CB209605); 国家自然科学基金(40974073); 国家油气重大专项课题(2011ZX05014-001-008HZ); CNPC物探重点实验室华东研究室联合资助 |
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| 摘 要： | 鉴于现有去除面波方法会损害有效信号,本文提出了一种基于第二代曲波变换压制面波的方法。该方法将地震数据分为多个尺度和方向,根据有效波和面波在不同尺度不同方向特征的差异,设计了多级曲波变换压制面波的流程,该方法充分利用有效波和面波在曲波域不重叠的特性,仅对含面波的尺度和方向上的曲波系数进行处理,最终获得压制面波后的地震数据。模型及实际资料处理结果表明,该方法能够在压制面波的同时最大限度地保护有效信号,是一种有效的相对保幅去噪的方法。
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| 关 键 词： | 第二代曲波变换 面波 曲波分解 保幅去噪 |
Ground-roll suppression based on the second generation Curvelet transform |
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| Dong Lie-qian,Li Zhen-chun,Wang De-ying,Liu Lei , Gao Jun-wei..School of Geosciences of China University of Petroleum,Qingdao,Sh,ong ,China.Shengli Well Logging Co.,Dongying,Sh,ong ,China.No Gas Production Plant,Changqing Oilfield Company,Petrochina,YuLin,Shaanxi ,China. Ground-roll suppression based on the second generation Curvelet transform[J]. Oil Geophysical Prospecting, 2011, 0(6): 897-904,1012,831,832 |
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| Authors: | Dong Lie-qian Li Zhen-chun Wang De-ying Liu Lei Gao Jun-wei..School of Geosciences of China University of Petroleum Qingdao Sh ong China.Shengli Well Logging Co. Dongying Sh ong China.No Gas Production Plant Changqing Oilfield Company Petrochina YuLin Shaanxi China |
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| Affiliation: | Dong Lie-qian1,Li Zhen-chun1,Wang De-ying1,Liu Lei2 and Gao Jun-wei3.1.School of Geosciences of China University of Petroleum(East China),Qingdao,Shandong 266555,China2.Shengli Well Logging Co.,Dongying,Shandong 257096,China3.No 2 Gas Production Plant,Changqing Oilfield Company,Petrochina,YuLin,Shaanxi 719000,China |
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| Abstract: | In view of the loss of effective signal of conventional ground-roll removal techniques,in this paper we develop a new multi-scale and multi-directional method of removing ground roll based on the second generation Curvelet transform.Firstly,the seismic data is assigned to multiple scales and directions by Curvelet transform.According to different characteristics of ground rolls and waves in different scales and different directions,a flow of ground-roll removal based on multi-curvelet transform is devised.M... |
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| Keywords: | the second generation Curvelet transform Ground-roll Curvelet decomposition preserved-amplitude denoising |
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