| 低信噪比转换波地震资料静校正(英文) |
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| 引用本文： | 李国发,彭苏萍. 低信噪比转换波地震资料静校正(英文)[J]. 应用地球物理, 2008, 5(1): 44-49. DOI: 10.1007/s11770-008-0009-3 |
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| 作者姓名： | 李国发 彭苏萍 |
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| 作者单位： | Li Guofa（Lab of Seismic Exploration, School of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100024, China; Key Lab of Geophysical Exploration of China National Petroleum Corporation,, China University of Petroleum, Beijing 102249, China） Peng Suping（Lab of Seismic Exploration, School of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100024, China） |
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| 摘 要： | Converted waves have slow velocity and low signal-to-noise ratio. It is also difficult to pick first-breaks and bin the common-conversion-points （CCP）. Some statics methods, which work well for P-wave data, can＇t be effectively used for solving convertedwave statics problems. This has become the main obstacle to breakthroughs in convertedwave data processing. To improve converted-wave static corrections, first, a statics method based on the common-receiver-point （CRP） stack is used for the initial receiver static correction to enhance the coherency of the CRP stack. Second, a stack-power-maximization static correction which improves the continuity of the CCP stack is used for detailed receiver statics. Finally, a non-surface-consistent residual moveout correction of the CCP gathers is used to enhance the stack power of reflection signals from different depths. Converted-wave statics are solved by the joint use of the three correction methods.
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| 关 键 词： | 转换波 静力学 地震数据 检测方法 |
| 修稿时间： | 2007-10-15 |
Static corrections for low S/N ratio converted-wave seismic data |
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| Guofa Li,Suping Peng. Static corrections for low S/N ratio converted-wave seismic data[J]. Applied Geophysics, 2008, 5(1): 44-49. DOI: 10.1007/s11770-008-0009-3 |
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| Authors: | Guofa Li Suping Peng |
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| Affiliation: | [1]Lab of Seismic Exploration, School of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100024, China. [2]Key Lab of Geophysical Exploration of China National Petroleum Corporation,, China University of Petroleum, Beijing 102249, China. |
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| Abstract: | Converted waves have slow velocity and low signal-to-noise ratio. It is also difficult to pick first-breaks and bin the common-conversion-points (CCP). Some statics methods, which work well for P-wave data, can't be effectively used for solving converted-wave statics problems. This has become the main obstacle to breakthroughs in converted-wave data processing. To improve converted-wave static corrections, first, a statics method based on the common-receiver-point (CRP) stack is used for the initial receiver static correction to enhance the coherency of the CRP stack. Second, a stack-power-maximization static correction which improves the continuity of the CCP stack is used for detailed receiver statics. Finally, a non-surface-consistent residual moveout correction of the CCP gathers is used to enhance the stack power of reflection signals from different depths. Converted-wave statics are solved by the joint use of the three correction methods. |
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| Keywords: | converted-wave statics common-receiver-point stack stack-power-maximization non-surface-consistent. |
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