弯曲测线地震资料相干噪声压制
|
摘要
引鄂尔多斯盆地,地表沟谷纵横,为形态奇特的黄土塬复杂地貌.高程变化剧烈,出露地表的岩性复杂.受地表条件的限制,采集资料大多采用弯曲测线方式施工,改善了激发接收条件,以获得信噪比高的地震资料,但是在单炮上会产生曲线型的相干噪声,在常规地震资料处理中,常规去线性的方法对于曲线型的相干噪声效果不佳,为解决这一问题,提出在T-X域将曲线型的相干噪声线性化,去噪后反变回去的方法.对理论数据和实际的地震资料的处理,相干噪声得到了很好的压制,资料的信噪比得到了提高.
The Ordos Basin is featured by vertical and horizontal surface valleies,and the peculiar form of the complex topography of the Loess Plateau.Dramatic changes in elevation and complex lithology of exposed suface are present. Because of the surface conditions,in order to obtain high signal-to-noise ratio of seismic data,crooked lines are used to improve the excitation and receive conditions.But curved coherent noise is resulted in shot gathers.In the conventional seismic data processing,the conventional approach is ineffective to the curved coherent noise.In order to solve this problem,we propose a method to make cured coherent noise linearized in TX domain.Tests on theoretical data and the actual seismic data processing show that coherent noise suppression is well realized and signal-to-noise ratio has been improved.
The Ordos Basin is featured by vertical and horizontal surface valleies,and the peculiar form of the complex topography of the Loess Plateau.Dramatic changes in elevation and complex lithology of exposed suface are present. Because of the surface conditions,in order to obtain high signal-to-noise ratio of seismic data,crooked lines are used to improve the excitation and receive conditions.But curved coherent noise is resulted in shot gathers.In the conventional seismic data processing,the conventional approach is ineffective to the curved coherent noise.In order to solve this problem,we propose a method to make cured coherent noise linearized in TX domain.Tests on theoretical data and the actual seismic data processing show that coherent noise suppression is well realized and signal-to-noise ratio has been improved.
引文
[1] 刘建芳,郭赟,鲍伟,等.复杂地表二维弯曲测线地震资料处理方法研究[J].石油物探,2007,46(2) :196～201 Liu J F, Guo Y, Bao W, Guan W H. Research on 2-D seismic data processing slalom lines in complex surface condition[J].Geophysical Prospecting For Petroleum, 2007, 46 ( 2 ) : 196 ～201．
[2] 柴铭涛.黄土塬地震勘探资料处理技术[J].物探化探计算技术,2007,29(S1) :129～132 Chai M T. A data processing technique applied to seismic surveys on loess plateau [ J]. Computing Techniques for Geophysical and Geochemical Exploration, 2007, 29 ( S1 ) :129～132
[3] 李文莲,邓辉,闫立志.鄂尔多斯盆地北部低信噪比资料的高分辨率处理[J].地球物理学进展,2005,20(4) :1059～1066． LI W L, Deng H, Yan L Z. A high-resolution procedure of low SNR data for North Ordos basin [J]. Progress in Geophysics (in Chinese), 2005,20(4) :1059～1066．
[4] 陆孟基.地震勘探原理(上册)[M].东营:石油大学出版社,2004,20～60． Lu M J. Principles of seismic exploration [M]. DongYing: China Univerniverty Petroleum Press, 2004,20～ 60．
[5] Oz Yilmaz. Seismic Data Analysis: processing, inversion, and interpretation of seismic data[M]. USA:Society of Ecploration Geophysicists, 2001:837～966
[6] 张文坡,陈湛文.线性化空间变换叠前与叠后地震记录去噪方法[J].地球物理学进展,2006,21(1) :190～193． Zhang W P, Chen Z W. Denoise method for prestack and poststack seismic records by linear spatial transformation[J].Progress in Geophysics (in Chinese), 2006,21(1) :190～193．
[7] 邓国振,张树海,龙利平等.黄土塬二维直测线地震勘探方法及效果[J].石油物探,2003,42(2) :219～223． Deng G Z, Zhang S H, Long Li-ping etc. Methods and effects of 22D straight line seismic exploration in area of loess tableland[J]. Geophysical Prospecting For Petroleum, 2003, 42(2) :219～223
[8] 夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析[J].石油物探,2003,42(4) :526～528． Xia H R, Zhou K M. Elimination of coherent interference in seismic data processing [J]. Geophysical Prospecting For Petroleum, 2003,42 (4) : 526～528．
[9] 张军华,吕宁,田连玉,等.地震资料去噪方法、技术综合评述[J].地球物理学进展,2005,20(4) :1083～1091． Zhang J H, Lü N, Tian L Y, et al. An overview of the methods and techniques for seismic data noise attenuation[J]. Progress in Geophysics ( in Chinese), 2005,20 (4) : 1083 ～1091．
[10] 钟伟,杨宝俊,张智.多项式拟合技术在强噪声地震资料中的应用研究[J].地球物理学进展,2006,21(1) :184～189． Zhong W, Yang B J, Zhang Z. Research on application of polynomial fitting technique in highly noisy seismic data[J].Progress in Geophysics (in Chinese), 2006,21 (1) : 184 ～189．
[11] 柳建新,韩世礼,马捷.小波分析在地震资料去噪中的应用 [J].地球物理学进展,2006,21(2) :541～545． Liu J X, Han S L, Ma J. Application of wavelet analysis in seismic data denoising [ J]. Progress in Geophysics (in Chinese), 2006,21 (2) : 541～545．
[12] 刘志鹏,陈小宏,李景叶.径向道变换压制相干噪声方法研究[J].地球物理学进展,2008,23(4) :1199～1205． Liu Z P, Chen X H, Li J Y. Study on coherent noise attenuation using radial trace transform filtering [ J]. Progress in Geophysics ( in Chinese), 2008,23 ( 4 ) : 1199 ～ 1204．
[13] 王典,刘财,刘洋等.反射法地震勘探噪声消除技术研究[J].地球物理学进展,2006,21(3) :957～970． Wang D, Liu C, Liu Y, et al. Study of the noise elimination methods in the reflection seismic exploration[J]. Progress in Geophysics (in Chinese), 2006,21(3) :957～970．
[14] 金雷,李月,杨宝俊.用时频峰值滤波方法消减地震勘探资料中随机噪声的初步研究[J].地球物理学进展,2005,20(3) : 724～728． Jin L, Li Y, Yang B J. Reduction of random noise for seismic data by time-frequency peak filtering [ J]. Progress in Geophysics ( in Chinese), 2005,20 (3) : 724 ～ 728．
[15] 刘建红,孟小红,李合群.西部山地复杂地震资料处理技术研究[J].地球物理学进展,2008,23(3) :859～863． Liu J H, Meng X H, Li H Q. Seismic data processing in the complex mountains of western China [J]. Progress in Geophysics (in Chinese), 2008,23(3) :859～863．
[16] Mladen R, et al. Crooked-line 2D seismic reflection imaging in crystalline terrains: Part 2, migration [J]. Geophysics, 2003,68(1) :286～296
[17] Ramesh Neelamani; Anatoly I. Baumstein; etc. Coherent and random noise attenuation using the curvelet transform [J]. The Leading Edge ,2008,27(2) :240～248．
[18] David C. Henley. Coherent noise attenuation in the radial trace domain [J]. Geophysics ,2003,68(4) :1408～1416．
[19] ZhU Wei-hong, PANOS G. KELAMIS, Liu Qing-lin. Linear noise attenuation using local radial trace median filtering[J]. The Leading Edge, 2004,23 (8) : 728 ～ 729．
[20] Lu W K, Zhang, W P, Liu D Q. Local linear coherent noise attenuation based on local polynomial approximation [ J]. Geophysics ,2006,71(6) :163～169．
[21] Antoine Guitton. Coherent noise attenuation using inverse problems and prediction-error filters[J]. First Break, 2002, 20(3) :161～167．
[2] 柴铭涛.黄土塬地震勘探资料处理技术[J].物探化探计算技术,2007,29(S1) :129～132 Chai M T. A data processing technique applied to seismic surveys on loess plateau [ J]. Computing Techniques for Geophysical and Geochemical Exploration, 2007, 29 ( S1 ) :129～132
[3] 李文莲,邓辉,闫立志.鄂尔多斯盆地北部低信噪比资料的高分辨率处理[J].地球物理学进展,2005,20(4) :1059～1066． LI W L, Deng H, Yan L Z. A high-resolution procedure of low SNR data for North Ordos basin [J]. Progress in Geophysics (in Chinese), 2005,20(4) :1059～1066．
[4] 陆孟基.地震勘探原理(上册)[M].东营:石油大学出版社,2004,20～60． Lu M J. Principles of seismic exploration [M]. DongYing: China Univerniverty Petroleum Press, 2004,20～ 60．
[5] Oz Yilmaz. Seismic Data Analysis: processing, inversion, and interpretation of seismic data[M]. USA:Society of Ecploration Geophysicists, 2001:837～966
[6] 张文坡,陈湛文.线性化空间变换叠前与叠后地震记录去噪方法[J].地球物理学进展,2006,21(1) :190～193． Zhang W P, Chen Z W. Denoise method for prestack and poststack seismic records by linear spatial transformation[J].Progress in Geophysics (in Chinese), 2006,21(1) :190～193．
[7] 邓国振,张树海,龙利平等.黄土塬二维直测线地震勘探方法及效果[J].石油物探,2003,42(2) :219～223． Deng G Z, Zhang S H, Long Li-ping etc. Methods and effects of 22D straight line seismic exploration in area of loess tableland[J]. Geophysical Prospecting For Petroleum, 2003, 42(2) :219～223
[8] 夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析[J].石油物探,2003,42(4) :526～528． Xia H R, Zhou K M. Elimination of coherent interference in seismic data processing [J]. Geophysical Prospecting For Petroleum, 2003,42 (4) : 526～528．
[9] 张军华,吕宁,田连玉,等.地震资料去噪方法、技术综合评述[J].地球物理学进展,2005,20(4) :1083～1091． Zhang J H, Lü N, Tian L Y, et al. An overview of the methods and techniques for seismic data noise attenuation[J]. Progress in Geophysics ( in Chinese), 2005,20 (4) : 1083 ～1091．
[10] 钟伟,杨宝俊,张智.多项式拟合技术在强噪声地震资料中的应用研究[J].地球物理学进展,2006,21(1) :184～189． Zhong W, Yang B J, Zhang Z. Research on application of polynomial fitting technique in highly noisy seismic data[J].Progress in Geophysics (in Chinese), 2006,21 (1) : 184 ～189．
[11] 柳建新,韩世礼,马捷.小波分析在地震资料去噪中的应用 [J].地球物理学进展,2006,21(2) :541～545． Liu J X, Han S L, Ma J. Application of wavelet analysis in seismic data denoising [ J]. Progress in Geophysics (in Chinese), 2006,21 (2) : 541～545．
[12] 刘志鹏,陈小宏,李景叶.径向道变换压制相干噪声方法研究[J].地球物理学进展,2008,23(4) :1199～1205． Liu Z P, Chen X H, Li J Y. Study on coherent noise attenuation using radial trace transform filtering [ J]. Progress in Geophysics ( in Chinese), 2008,23 ( 4 ) : 1199 ～ 1204．
[13] 王典,刘财,刘洋等.反射法地震勘探噪声消除技术研究[J].地球物理学进展,2006,21(3) :957～970． Wang D, Liu C, Liu Y, et al. Study of the noise elimination methods in the reflection seismic exploration[J]. Progress in Geophysics (in Chinese), 2006,21(3) :957～970．
[14] 金雷,李月,杨宝俊.用时频峰值滤波方法消减地震勘探资料中随机噪声的初步研究[J].地球物理学进展,2005,20(3) : 724～728． Jin L, Li Y, Yang B J. Reduction of random noise for seismic data by time-frequency peak filtering [ J]. Progress in Geophysics ( in Chinese), 2005,20 (3) : 724 ～ 728．
[15] 刘建红,孟小红,李合群.西部山地复杂地震资料处理技术研究[J].地球物理学进展,2008,23(3) :859～863． Liu J H, Meng X H, Li H Q. Seismic data processing in the complex mountains of western China [J]. Progress in Geophysics (in Chinese), 2008,23(3) :859～863．
[16] Mladen R, et al. Crooked-line 2D seismic reflection imaging in crystalline terrains: Part 2, migration [J]. Geophysics, 2003,68(1) :286～296
[17] Ramesh Neelamani; Anatoly I. Baumstein; etc. Coherent and random noise attenuation using the curvelet transform [J]. The Leading Edge ,2008,27(2) :240～248．
[18] David C. Henley. Coherent noise attenuation in the radial trace domain [J]. Geophysics ,2003,68(4) :1408～1416．
[19] ZhU Wei-hong, PANOS G. KELAMIS, Liu Qing-lin. Linear noise attenuation using local radial trace median filtering[J]. The Leading Edge, 2004,23 (8) : 728 ～ 729．
[20] Lu W K, Zhang, W P, Liu D Q. Local linear coherent noise attenuation based on local polynomial approximation [ J]. Geophysics ,2006,71(6) :163～169．
[21] Antoine Guitton. Coherent noise attenuation using inverse problems and prediction-error filters[J]. First Break, 2002, 20(3) :161～167．
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心