岩性目标识别处理技术在芳草湖地区的应用
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摘要
岩性目标识别处理技术是地震资料处理的特色技术之一,为了更好地刻画岩性目标,识别尖灭点位置,针对芳草湖工区的地震成像难点,利用GeoEast处理系统的配套处理技术建立了针对岩性目标的处理技术和流程。通过压制干扰波增强了有效波的信噪比;利用反褶积使子波压缩振幅一致性得到改善,成像精度提高;叠前时间偏移流程准确确定出反射点的真实位置;提高纵向分辨率技术使高频频带得到拓宽,分辨率得到加强。该方法的应用落实了芳草湖探区的构造形态,实现了高精度地震成像。
Lithologic-target recognition-oriented processing is one distinctive seismic data processing approach to well characterize lithologic targets and identify pinch-outs.To overcome the difficulty of seismic imaging in Fangcaohu Area,aprocessing strategy and workflow are built up with tools provided by GeoEast Processing Sub-system.The signal-to-noise ratio(SNR)of seismic data is enhanced with noise elimination;the wavelet amplitude consistency is improved by deconvolution;the real reflection imaging is accurately achieved by prestack time migration;and the frequency band is widened and the longitudinal resolution is enhanced.Our strategy and workflow obtains highquality seismic imaging in Fangcaohu Area,which provides a solid foundation for the later interpretation and evaluation.
Lithologic-target recognition-oriented processing is one distinctive seismic data processing approach to well characterize lithologic targets and identify pinch-outs.To overcome the difficulty of seismic imaging in Fangcaohu Area,aprocessing strategy and workflow are built up with tools provided by GeoEast Processing Sub-system.The signal-to-noise ratio(SNR)of seismic data is enhanced with noise elimination;the wavelet amplitude consistency is improved by deconvolution;the real reflection imaging is accurately achieved by prestack time migration;and the frequency band is widened and the longitudinal resolution is enhanced.Our strategy and workflow obtains highquality seismic imaging in Fangcaohu Area,which provides a solid foundation for the later interpretation and evaluation.
引文
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[17] 张红军,魏程霖,张丹,等.低频配套处理技术在岩性油气藏识别中的应用[J].石油地球物理勘探,2017,52(增刊2):64-71.ZHANG Hongjun,WEI Chenglin,ZHANG Dan,et al.Application of low frequency matching processing technology in lithologic reservoirs[J].Oil Geophysical Prospecting,2017,52(S2):64-71.
[18] 刘明乾,于相海,周夏丽,等.非纵测线地震资料相干噪声压制[J].石油物探,2011,50(3):307-309.LIU Mingqian,YU Xianghai,ZHOU Xiali,et al.Coherent noise attenuation in broadside seismic data[J].Geophysical Prospecting for Petroleum,2011,50(3):307-309.
[19] 高树生,张高,刘文霞,等,高精度处理技术在辽河油田曙一区的应用[J].石油地球物理勘探,2017,52(增刊1):41-46,54.GAO Shusheng,ZHANG Gao,LIU Wenxia,et al.High-precision processing techniques for the Shu-1 area in Liaohe Oilfield[J].Oil Geophysical Prospecting,2017,52(S1):41-46,54.
[20] 谭佳,罗勇,张淑萍,等,处理解释一体化技术在准噶尔盆地南缘齐古背斜的应用[J].石油地球物理勘探,2017,52(增刊2):123-128.TAN Jia,LUO Yong,ZHANG Shuping,et al.Integrated seismic data processing & interpretation applied in Qigu Anticline[J].Oil Geophysical Prospecting,2017,52(S2):123-128.
[2] 文一华,王劲松,范亮,等.精细目标处理技术在吐哈探区的应用[J].石油地球物理勘探,2017,52(增刊1):20-21.WEN Yihua,WANG Jingsong,Fan Liang,et al.Target-oriented processing techniques for Tuha surveys[J].Oil Geophysical Prospecting,2017,52(S1):20-21.
[3] 林娟,罗勇,张龙,等.GeoEast处理系统在准南复杂高陡构造地区的应用[J].石油地球物理勘探,2014,49(增刊1):60-65.LIN Juan,LUO Yong,ZHANG Long,et al.GeoEast seismic data processing in complex steep structure area,Junggar Basin[J].Oil Geophysical Prospecting,2014,49(S1):60-65.
[4] 吕焕通,吴永强,高奇,等.准噶尔盆地南缘下组合复杂构造地震成像技术效果[J].新疆石油地质,2012,33(5):336-338.LYU Huantong,WU Yongqiang,GAO Qi,et al.Seismic imaging effect of lower combination complex structures in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology, 2012,33(5):336-338.
[5] 吴吉忠,李君,石文武.南堡1号构造火成岩发育区稳健保幅处理技术[J].石油地球物理勘探,2017,52(增刊1):1-9.WU Jizhong,LI jun,SHI Wenwu.Robust amplitude preserving processing strategy for well-developed igneous rocks in the structure Nanpu 1[J].Oil Geophysical Prospecting,2017,52(S1):1-9.
[6] 宋玉琢,王维红,初海红,等.GeoEeast保幅处理技术在大庆油田龙26区块的应用[J].石油地球物理勘探,2014,49(增刊1):41-47.SONG Yuzhuo,WANG Weihong,CHU Haihong,et al.GeoEast’s amplitude preservation processing in Block Long 26 Daqing Oilfield[J].Oil Geophysical Prospecting,2014,49(S1):41-47.
[7] 宋雪娟,徐基祥,秦臻,等.GeoEast噪声衰减模块的组合应用效果分析[J].石油地球物理勘探,2014,49(增刊1):76-81.SONG Xuejuan,XU Jixiang,QIN Zhen,et al.Joint application of noise removal modules of GeoEast[J].Oil Geophysical Prospecting,2014,49(S1):76-81.
[8] 林娟,罗勇,王静,等,GeoEast处理系统在准噶尔盆地腹部岩性目标区的应用效果[J].石油地球物理勘探,2014,49(增刊1):66-71.LIN Juan,LUO Yong,WANG Jing,et al.GeoEast data processing for stratigraphic targets,Junggar Basin[J].Oil Geophysical Prospecting,2014,49(S1):66-71.
[9] 赵玉华,陈娟,段意,等.长庆油田GFZ三维可控震源资料关键处理技术[J].石油地球物理勘探,2017,52(增刊2):50-55.ZHAO Yuhua,CHEN Juan,DUAN Yi,et al.Key processing techniques for 3D vibroseis data in the GFZ area Changqing Oilfield[J].Oil Geophysical Prospecting,2017,52(S2):50-55.
[10] 凌云.大地吸收衰减分析[J].石油地球物理勘探,2001,36(1):1-8.LING Yun.Analysis of attenuation by earth obsorption[J].Oil Geophysical Prospecting ,2001,36(1):1-8.
[11] 金守利,钱忠平,王成祥,等.GeoEast叠前时间偏移处理技术及应用[J].石油地球物理勘探,2014,49(增刊1):82-86.JIN Shouli,QIAN Zhongping,WANG Chengxiang,et al.GeoEast prestack time migration processing technique and application[J].Oil Geophysical Prospecting,2014,49(S1):82-86.
[12] 张高成,周刚,司卫,等.中国西部D区块二维地震资料处理方法[J].石油地球物理勘探,2013,48(增刊1)31-35.ZHANG Gaocheng,ZHOU Gang,SI Wei ,et al.2D seismic data processing methods in the Block D,West China[J].Oil Geophysical Prospecting,2013,48(S1):31-35.
[13] 曾波,赵旭.噪声减去法压制线性干扰[J].油气地球物理,2010,8(3):12-15.ZENG Bo,ZHAO Xu.Research of linear noise sup-pression method[J].Petroleum Geophysics,2010,8(3):12-15.
[14] 郭树祥.火成岩发育区的地震处理技术及需求分析——以胜利油田济阳凹陷探区为例[J].石油地球物理勘探,2013,48(2):218-228.GUO Shuxiang.Seismic processing technology and demand analysis of igneous rock development area: Taking the Jiyang depression exploration area of Shengli Oilfield as an example[J].Oil Geophysical Prospecting,2013,48(2):218-228.
[15] 严又生.一种非线性滤波去噪方法.石油地球物理勘探,1998,33(1):104-108.YAN Yousheng.A new method of nonlinear filtering noise removal[J].Oil Geophysical Prospecting,1998,33(1):104-108.
[16] 安西峰,刘平,张旭.地表一致性反褶积在地震勘探中的应用及效果[J].地球物理学进展,2010,25(6):2125-2129.AN Xifeng,LIU Ping,ZHANG Xu.Application of surface consistent deconvolution to seismic prospec-ting and its effect[J].Progress in Geophysics,2010,25(6):2125-2129.
[17] 张红军,魏程霖,张丹,等.低频配套处理技术在岩性油气藏识别中的应用[J].石油地球物理勘探,2017,52(增刊2):64-71.ZHANG Hongjun,WEI Chenglin,ZHANG Dan,et al.Application of low frequency matching processing technology in lithologic reservoirs[J].Oil Geophysical Prospecting,2017,52(S2):64-71.
[18] 刘明乾,于相海,周夏丽,等.非纵测线地震资料相干噪声压制[J].石油物探,2011,50(3):307-309.LIU Mingqian,YU Xianghai,ZHOU Xiali,et al.Coherent noise attenuation in broadside seismic data[J].Geophysical Prospecting for Petroleum,2011,50(3):307-309.
[19] 高树生,张高,刘文霞,等,高精度处理技术在辽河油田曙一区的应用[J].石油地球物理勘探,2017,52(增刊1):41-46,54.GAO Shusheng,ZHANG Gao,LIU Wenxia,et al.High-precision processing techniques for the Shu-1 area in Liaohe Oilfield[J].Oil Geophysical Prospecting,2017,52(S1):41-46,54.
[20] 谭佳,罗勇,张淑萍,等,处理解释一体化技术在准噶尔盆地南缘齐古背斜的应用[J].石油地球物理勘探,2017,52(增刊2):123-128.TAN Jia,LUO Yong,ZHANG Shuping,et al.Integrated seismic data processing & interpretation applied in Qigu Anticline[J].Oil Geophysical Prospecting,2017,52(S2):123-128.