煤矿采区三维地震叠前时间偏移处理技术研究
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摘要
依据Kirchhoff积分法叠前时间偏移处技术的基本原理,探讨了该技术的实现方法及技术特点,并对其叠前去噪、振幅补偿、反褶积、多次波衰减、均方根速度场求取与优化、偏移孔径选取等关键技术的使用条件进行了系统分析。通过实际资料处理结果对比可知,Kirchhoff积分法叠前时间偏移比叠后时间偏移处理结果包含的地震信息更加丰富,复杂构造区成像更好,断层及断点空间位置更准确。应用效果表明,在地层横向速度变化不大的情况下,三维地震叠前偏移技术是解决煤矿采区陡倾角复杂构造成像问题的有效方法。
Based on basic principle of the Kirchhoff integral prestack time migration processing technology,discussed realization way and technical characteristics of the technology and systematically analyzed operating conditions of key technologies including prestack denoising,amplitude compensation,deconvolution,multiple wave attenuation,root-mean-square velocity field extraction,optimization and aperture selection etc.Through actual data processed results comparison can see,seismic information in prestack time migration processed result is more abundant than that of poststack time migration processed result,better imaging in complicated structure areas,more accurate fault spatial locations.The application effects have demonstrated that,in condition of strata transverse velocity variation is moderate,the 3D seismic prestack time migration technology is an effective method to solve coalmine winning district steep dip angle complicated structure imaging issue.
Based on basic principle of the Kirchhoff integral prestack time migration processing technology,discussed realization way and technical characteristics of the technology and systematically analyzed operating conditions of key technologies including prestack denoising,amplitude compensation,deconvolution,multiple wave attenuation,root-mean-square velocity field extraction,optimization and aperture selection etc.Through actual data processed results comparison can see,seismic information in prestack time migration processed result is more abundant than that of poststack time migration processed result,better imaging in complicated structure areas,more accurate fault spatial locations.The application effects have demonstrated that,in condition of strata transverse velocity variation is moderate,the 3D seismic prestack time migration technology is an effective method to solve coalmine winning district steep dip angle complicated structure imaging issue.
引文
[1]李庆忠,张进.岩性油气田勘探—河道砂储集层的研究方法[M].山东青岛:中国海洋大学出版社,2006.
[2](美)渥.伊尔马滋.地震资料分析:地震资料处理、反演和解释(上下册)[M].刘怀山,王克斌,童思友,译.北京:石油工业出版社,2006.
[3]王棣,王华忠,马在田,等.叠前时间偏移方法综述[J].勘探地球物理进展,2004,27(5):313-319.
[4]刘立彬,李振春.叠前时间偏移技术在东营凹陷北部陡坡带砂砾岩体成像中的应用[J].地球物理学进展,2007,10,22(5):1571-1577.
[5]张颖.三维地震叠前时间偏移处理技术应用与展望[J].石油勘探与开发,2006,33(5):536-541.
[6]陈伟,方伍保.偏移成像技术[J].勘探地球物理进展,2003,26(增刊):451-462.
[7]于明德,王璞,王君,等.Kirchhoff积分法叠前时间偏移技术在三江盆地XDLZ地区的应用[J].世界地质,2007,26(4):492-500.
[8]崔汝国,覃天,凌勋,等.叠前时间偏移成像技术及其应用[J].物探与化探,2006,30(6).541-544.
[9]Ekoro Marius Blanchard,Gu Hanmin.Prestack Kirchhoff TimeMigration for Imaging of ComplexStructure in the Nanyang Oilfie[J].Chinese Journal of Engineering Geophysics,2007,4(5):421-424.
[10]冷广升,陈加林,王秀荣,等.叠前时间偏移方法在煤田勘探中的应用[J].中国煤炭地质,2008,20(6):40-43.
[11]何光明,贺振华,黄德济,等.叠前时间偏移技术在复杂地区三维资料处理中的应用[J].天然气工业,2006,26(5):46-48.
[12]田忠斌.高精度三维地震勘探关键技术研究及应用[J]中国煤炭地质,2010,22(3):44-49.
[13]王秀荣.叠前时间偏移技术在煤田地震资料处理中的应用[J].中国煤田地质,2006,18(05).
[14]王建青.叠前地间偏移技术在潞安矿区的应用[J].中国煤炭地质,2008,20(6):33-35.
[15]金秀芹,孙培林.叠前时间偏移技术在八宝矿区的应用[J].中国煤炭地质,2009,21(6):65-67,73.
[2](美)渥.伊尔马滋.地震资料分析:地震资料处理、反演和解释(上下册)[M].刘怀山,王克斌,童思友,译.北京:石油工业出版社,2006.
[3]王棣,王华忠,马在田,等.叠前时间偏移方法综述[J].勘探地球物理进展,2004,27(5):313-319.
[4]刘立彬,李振春.叠前时间偏移技术在东营凹陷北部陡坡带砂砾岩体成像中的应用[J].地球物理学进展,2007,10,22(5):1571-1577.
[5]张颖.三维地震叠前时间偏移处理技术应用与展望[J].石油勘探与开发,2006,33(5):536-541.
[6]陈伟,方伍保.偏移成像技术[J].勘探地球物理进展,2003,26(增刊):451-462.
[7]于明德,王璞,王君,等.Kirchhoff积分法叠前时间偏移技术在三江盆地XDLZ地区的应用[J].世界地质,2007,26(4):492-500.
[8]崔汝国,覃天,凌勋,等.叠前时间偏移成像技术及其应用[J].物探与化探,2006,30(6).541-544.
[9]Ekoro Marius Blanchard,Gu Hanmin.Prestack Kirchhoff TimeMigration for Imaging of ComplexStructure in the Nanyang Oilfie[J].Chinese Journal of Engineering Geophysics,2007,4(5):421-424.
[10]冷广升,陈加林,王秀荣,等.叠前时间偏移方法在煤田勘探中的应用[J].中国煤炭地质,2008,20(6):40-43.
[11]何光明,贺振华,黄德济,等.叠前时间偏移技术在复杂地区三维资料处理中的应用[J].天然气工业,2006,26(5):46-48.
[12]田忠斌.高精度三维地震勘探关键技术研究及应用[J]中国煤炭地质,2010,22(3):44-49.
[13]王秀荣.叠前时间偏移技术在煤田地震资料处理中的应用[J].中国煤田地质,2006,18(05).
[14]王建青.叠前地间偏移技术在潞安矿区的应用[J].中国煤炭地质,2008,20(6):33-35.
[15]金秀芹,孙培林.叠前时间偏移技术在八宝矿区的应用[J].中国煤炭地质,2009,21(6):65-67,73.
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