| 线性Radon变换噪音压制法及其在古龙断陷中的应用 |
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| 作者姓名： | 石颖 李莹 王维红 陆加敏 |
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| 作者单位： | 1. 东北石油大学地球科学学院,黑龙江大庆,163318
2. 大庆油田有限责任公司勘探开发研究院,黑龙江大庆,163712 |
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| 基金项目： | 国家自然科学基金青年基金项目(41104088,41004057);国家“863”高技术研究发展计划项目(2012AA061202);中国博士后科学基金项目(2011M501009);中国石油科技创新基金项目(2011D-5006-0304);黑龙江省教育厅科学技术研究项目(12511025);黑龙江省博士后科学基金项目(LBH-Z11272) |
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| 摘 要： | 针对松辽盆地北部古龙断陷地震资料信噪比低、线性干扰强特点,提出应用线性Radon变换进行叠前线性噪音压制的预处理方法,Radon变换可在炮集和CMP道集上进行运算,算法简单,易于编程实现,其积分路径的特点适合线性噪音压制.模拟数据和实际地震资料应用结果表明,线性Radon变换法能够实现保幅的线性噪音压制,是叠前提高地震资料信噪比的实用方法,在地震资料预处理中具有应用前景.
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| 关 键 词： | Radon变换 线性噪音 压制 信噪比 古龙断陷 地震资料 |
Approach of linear noise suppression using Radon transform and its application in Gulong fault depression |
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| Authors: | SHI Ying LI Ying WANG Wei-hong LU Jia-min |
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| Institution: | 1.School of Geosciences,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;2.Research Institute of Exploration and Development,Daqing Oilfield Co.Ltd.,Daqing,Heilongjiang 163712,China) |
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| Abstract: | According to the characteristic of low S/N ratio seismic data and strong linear interference in north of Songliao basin Gulong fault depression,linear Radon transform approach is proposed for pre-stack linear noise suppression,Radon transform can be calculated on shot gathers and CMP trace gathers,the algorithm is simple,and also is easy to program,the property of linear Radon transform integral path is suitable to linear noise suppression.Linear noise suppression of theoretical simulation data and field seismic data demonstrate that the approach of Radon transform can preserve the primary’s amplitude during the course of linear noise suppression.The proposed linear noise suppression is practical which can improve seismic data S/N ratio,and it has broad application prospect in seismic data preprocessing. |
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| Keywords: | Radon transform approach linear noise suppression S/N ratio Gulong fault depression seismic data |
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