煤系气地震勘探多次波分析及压制策略
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摘要
鄂尔多斯盆地北部多次波异常发育,严重影响中深部目标层地震资料的信噪比,给地质解释及煤系气赋存特征研究带来很大的困难。通过分析某研究区的原始资料,结合地层特点,总结了多次波成因、类型和特征,采用多道预测反褶积、高精度Radon变换、F-K滤波的优化组合策略取得了满意的多次波压制效果,提高了目标层地震资料的成像质量。
The abnormal development of multiple waves in the north of Ordos Basin seriously affects the signal-to-noise ratio( SNR) of seismic data in the middle and deep target layer,and brings great difficulties to the study of geological interpretation and gas occurrence characteristics of coal measures. Based on the analysis of the original data of a study area and the characteristics of strata,the genesis,type and characteristics of multiple waves were summarized,and the optimal combination strategy of multi-channel predictive deconvolution,high-precision Radon transform and F-K filtering has obtained the satisfactory multi-wave pressing effect,and the imaging quality of the seismic data of the target layer was improved.
The abnormal development of multiple waves in the north of Ordos Basin seriously affects the signal-to-noise ratio( SNR) of seismic data in the middle and deep target layer,and brings great difficulties to the study of geological interpretation and gas occurrence characteristics of coal measures. Based on the analysis of the original data of a study area and the characteristics of strata,the genesis,type and characteristics of multiple waves were summarized,and the optimal combination strategy of multi-channel predictive deconvolution,high-precision Radon transform and F-K filtering has obtained the satisfactory multi-wave pressing effect,and the imaging quality of the seismic data of the target layer was improved.
引文
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[2]冯三利，叶建平，张遂安．鄂尔多斯盆地煤层气资源及开发潜力分析[J]．地质通报，2002,21(10):658-662.Feng Sanli,Ye Jianping,Zhang Suian.Coalbed methane resources in the Ordos basin and its development potential[J].Geological Bulletin of China,2002,21(10):658-662．
[3]王社教，李登华，李建忠，等．鄂尔多斯盆地页岩气勘探潜力分析[J]．天然气工业，2011,31(12):40-46.Wang Shejiao,Li Denghua,Li Jianzhong,et al.exploration potential of shale gas in Ordos Basin[J].Natural Gas Industry,2011,31(12):40-46．
[4]姚海鹏，朱炎铭，刘宇，等．鄂尔多斯盆地伊陕斜坡北部煤系非常规天然气成藏特征[J]．科学技术与工程，2018,18(3):160-167.Yao Haipeng,Zhu Yanming,Liu Yu,et al.The accumulation features of unconventional gas in coal-bearing strata in the north of Yishan Slope in Ordos Basin[J].Science Technology and Engineering,2018,18(3):160-167．
[5]张广利，郝重涛，姚陈．海洋地震资料多次波衰减方法综述[J]．地球物理学进展，2016,31(6):2777-2787.Zhang Guangli,Hao Zhongtao,Yao Chen.Summary of multiples attenuation approaches in marine seismic data processing[J].Progress in Geophysics,2016,31(6):2777-2787．
[6]宋家文，D.J.Verschuur，陈小宏．多次波压制的研究现状与进展[J]．地球物理学进展，2014,29(1):240-247.Song Jiawen,D.J.Verschuur,Chen Xiaohong.Research status and progress in multiple elimination[J].Progress in Geophysics,2014,29(1):240-247．
[7]张宇飞，苑昊．陆上多次波识别与压制[J]．岩性油气藏，2015,27(6):104-110.Zhang Yufei,Yuan Hao.Recognition and attenuation of multiples in land seismic data[J].Lithologic Reservoirs,2015,27(6):104-110．
[8]李鹏，刘伊克，常旭，等．多次波问题的研究进展[J]．地球物理学进展，2006,21(3):888-897.Li Peng,Liu Yike,Chang Xu,et al.Progress on the multiple problems[J].Progress in Geophysics,2006,21(3):888-897．
[9]石颖，邢小林．表面多次波压制的研究进展:回顾与展望[J]．地球物理学进展，2011,26(6):2046-2054.Shi Ying,Xing Xiaolin.Investigation progress on surface-related multiple suppression:review and outlook[J].Progress in Geophysics,2011,26(6):2046-2054．
[10]陆基孟，王永刚．地震勘探原理[M]．东营:中国石油大学出版社，2009．
[11]王汝珍．多次波识别与衰减[J]．勘探地球物理进展，2003,26(6):423-432.Wang Ruzhen.Recognition and suppression of multiple waves[J].Progress in Exploration Geophysics,2003,26(6):423-432．
[12]张军华，缪彦舒，郑旭刚，等．预测反褶积去多次波几个理论问题探讨[J]．物探化探计算技术，2009,31(1):6-10.Zhang Junhua,Miao Yanshu,Zheng Xugang,et al.Discussion of several theoretical questions to remove seismic multiples using predictive deconvolution[J].Computing Techniques for Geophysical and Geochemical Exploration,2009,31(1):6-10．
[13]张志军，魏天罡．浅水多次波的联合衰减技术在渤海海域LD地区的应用[J]．中国石油勘探，2013,18(1):59-65.Zhang Zhijun,Wei Tiangang.Application of joint shallow-water multiple attenuation technique in LD zone of Bohai Sea[J].China Petroleum Exploration,2013,18(1):59-65．
[14]郭梦秋，赵彦良，左胜杰，等．海上地震资料处理中的组合压制多次波技术[J]．石油地球物理勘探，2012,47(4):537-544.Guo Mengqiu,Zhao Yanliang,Zuo Shengjie,et al.Combined multiple attenuation in marine seismic data processing[J].Oil Geophysical Prospecting,2012,47(4):537-544．
[15]张振波，轩义华．高分辨率抛物线拉冬变换多次波压制技术[J]．物探与化探，2014,38(5):981-988.Zhang Zhenbo,Xuan Yihua.High resolution parabolic radon transform multiple wave suppression technique[J].Geophysical and Geochemical Exploration,2014,38(5):981-988．
[16]刘喜武，刘洪，李幼铭．高分辨率Radon变换方法及其在地震信号处理中的应用[J]．地球物理学进展，2004,19(1):8-15.Liu Xiwu,Liu Hong,Li Youming.High resolution radon transform and its application in seismic signal processing[J].Progress in Geophysics,2004,19(1):8-15．
[17]褚玉环，刘清华，王宝，等．拉东变换压制多次波技术在大庆探区的应用[J]．大庆石油地质与开发，2009,28(6):325-327.Chu Yuhuan,Liu Qinghua,Wang Bao,et al.Application of multiple suppression technique using the Radon Transform in Daqing exploration area[J].Petroleum Geology&Oilfield Development in Daqing,2009,28(6):325-327．
[18]雍凡，罗水余，李颜贵，等．F-K变换与预测反褶积压制多次波效果对比[J]．物探化探计算技术，2014,36(6):700-707.Yong Fan,Luo Shuiyu,Li Yangui,et al.Comparison of F-K domain methods and prediction deconvolution for multiple attenuation[J].Computing Techniques for Geophysical and Geochemical Exploration,2014,36(6):700-707．
[19]李娜，李响．组合多次波压制技术在海拉尔地区的应用[J]．油气地球物理，2017,15(4):26-31.Li Na,Li Xiang.Application of the array to suppress the multiple in Hailaer Area[J].Petroleum Geophysics,2017,15(4):26-31．
[20]苑益军，张锐锋．陆上地震数据多次波压制策略[J]．现代地质，2012,26(6):1237-1243.Yuan Yijun,Zhang Ruifeng.Multiple suppression strategies on land seismic data[J].Geoscience,2012,26(6):1237-1243.
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