数据规则化技术在三维地震老资料叠前偏移中的应用
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摘要
数据规则化技术是地震资料处理中的重要技术,它对改善地震数据的面元属性,提高地震资料处理质量具有重要意义。进行叠前时间偏移处理时,更多关注的是偏移速度场精度及偏移参数对偏移成像效果的影响,忽视了不规则空间采样的叠前数据对叠前偏移成像效果的影响。文中在分析叠前数据规则化常用技术方法优缺点的基础上,研究了反假频傅里叶变换的叠前数据规则化方法,实现了陆地地震勘探资料不规则空间采样的叠前数据规则化,满足了叠前时间偏移技术对输入数据的要求,在济源后邓地区稀疏三维地震老资料重新处理中取得了较好的应用效果。
Data regularization is a key technology in seismic data processing which has great importance to improve the attribute of bin size and to enhance the processing quality of seismic data.Technician pay more attention to the effect of migration velocity field accuracy and migration parameters on migration imaging result when prestack time migration is carried on,but the effect of prestack data on prestack migration imaging result in irregular space sampling is neglected.Based on the analysis of the advantages and disadvantages of common prestack data regularization technology,the prestack data regularization method of anti-aliasing Fourier transform is studied and the prestack data regularization of irregular space sampling in land seismic exploration is realized,which meets the requirement of prestack time migration on input data and obtains a good application result in the reprocessing of old 3D seismic data in Houdeng Area of Jiyuan.
Data regularization is a key technology in seismic data processing which has great importance to improve the attribute of bin size and to enhance the processing quality of seismic data.Technician pay more attention to the effect of migration velocity field accuracy and migration parameters on migration imaging result when prestack time migration is carried on,but the effect of prestack data on prestack migration imaging result in irregular space sampling is neglected.Based on the analysis of the advantages and disadvantages of common prestack data regularization technology,the prestack data regularization method of anti-aliasing Fourier transform is studied and the prestack data regularization of irregular space sampling in land seismic exploration is realized,which meets the requirement of prestack time migration on input data and obtains a good application result in the reprocessing of old 3D seismic data in Houdeng Area of Jiyuan.
引文
[1]曹延军,游洪文,林玉英,等.叠前时间偏移技术及应用[J].断块油气田,2004,11(5):21-22.
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[11]Hale D.A nonaliases integral method for dipmoveout[J].Geophysics,1991,56(6):795-805.
[12]Black J L,Schleicher K L,Zhang L.True-amplitude imaging and dipmoveout[J].Geophysics,1993,58(1):47-66.
[13]辛可锋,王华忠,王成礼,等.叠前地震数据的规则化[J].石油地球物理勘探,2002,37(4):311-317.
[14]Canning A,Gerald G H F.Regularizing 3-D data sets with DMO[J].Geophysics,1996,61(4):1103-1114.
[15]Biondi B,Fomel S,Chemingui N.Azimuth moveout for 3-D perstackimaging[J].Geophysics,1998,63(5):574-588.
[16]王棣,马秀红,崔兴福,等.偏移距规则化技术在叠前时间偏移中的应用[J].勘探地球物理进展,2009,32(1):44-47.
[2]杨春梅,颜军,陈天铸,等.克希霍夫叠前时间偏移技术及应用[J].断块油气田,2007,14(6):21-23.
[3]朱武.西非深海地区Kirchhoff偏移技术的研究与应用[J].断块油气田,2008,15(2):37-39.
[4]林明玉,匡斌.叠前深度偏移中的旅行时并行计算技术[J].断块油气田,2003,10(4):12-14.
[5]郭朝斌,侯春丽,曾红,等.高精度三维深度域成像技术在文卫濮结合部的应用[J].断块油气田,2002,9(4):23-25.
[6]Nurul Kabir M M,Verschuur D J.应用“抛物线Radon变换”恢复空缺道记录:上[J].赵希刚,译.国外地质勘探技术,1996(4):5-10.
[7]Nurul Kabir M M,Verschuur D J.应用“抛物线Radon变换”恢复空缺道记录:下[J].赵希刚,译.国外地质勘探技术,1996(5):6-11.
[8]王维红,高红伟,刘洪道.均衡抛物线Radon变换法地震道重建[J].石油地球物理勘探,2005,40(5):518-522,560.
[9]王维红,刘洪.抛物Radon变换法近偏移距波场外推[J].地球物理学进展,2005,2(2):289-293.
[10]王维红,裴江云,张剑锋.加权抛物Radon变换叠前地震数据重建[J].地球物理学报,2007,50(3):851-859.
[11]Hale D.A nonaliases integral method for dipmoveout[J].Geophysics,1991,56(6):795-805.
[12]Black J L,Schleicher K L,Zhang L.True-amplitude imaging and dipmoveout[J].Geophysics,1993,58(1):47-66.
[13]辛可锋,王华忠,王成礼,等.叠前地震数据的规则化[J].石油地球物理勘探,2002,37(4):311-317.
[14]Canning A,Gerald G H F.Regularizing 3-D data sets with DMO[J].Geophysics,1996,61(4):1103-1114.
[15]Biondi B,Fomel S,Chemingui N.Azimuth moveout for 3-D perstackimaging[J].Geophysics,1998,63(5):574-588.
[16]王棣,马秀红,崔兴福,等.偏移距规则化技术在叠前时间偏移中的应用[J].勘探地球物理进展,2009,32(1):44-47.
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