相控阵震源对叠前AVO的精度影响理论分析
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摘要
在石油地震勘探中,信号采集所面临的最突出的困难是微弱的反射信号常常淹没在很强的背景噪声之中.为了提高地震记录的信噪比,可以利用多台可控震源阵列实施相位控制形成定向地震波束以增强地震波在某个方向上能量,本文讨论这种相控阵震源的波束形成机制,以及在运用AVO反演方法时,如果采用相控阵所激发后的所采集的地震资料,对造成AVO的精度值误差的理论分析。
In the oil seismic exploration,The most difficulty of signal acquisition is that the weak reflected signals are often submerged in strong background noise into.For Increasing signal-noise ratio of seismic records,one can make use of vibrator arrays by phase controlling to concentrate seismic waves into a directed beam so as to enhance the energy of seismic waves.This article discusses forming mechanism of Phase array vibrators,as well as in the use of AVO inversion method,if we use the seismic data acquired by Phase array vibrators exciting,Theoretically,causing the accuracy error of AVO.
In the oil seismic exploration,The most difficulty of signal acquisition is that the weak reflected signals are often submerged in strong background noise into.For Increasing signal-noise ratio of seismic records,one can make use of vibrator arrays by phase controlling to concentrate seismic waves into a directed beam so as to enhance the energy of seismic waves.This article discusses forming mechanism of Phase array vibrators,as well as in the use of AVO inversion method,if we use the seismic data acquired by Phase array vibrators exciting,Theoretically,causing the accuracy error of AVO.
引文
[1]王忠仁,林君,冯声涯.地震勘探中相控阵震源的方向特性研究[J].地球物理学报,2006,49(4):1191~119.
[2]姜.基于相控震源的地震波定向方法研究,2006.
[3]姜,林君,陈祖斌,张林行.相控震源对地震勘探分辨率的影响.第21届中国地球物理综合学术年会会议论文集《中国地球物理2005》,2005:467.
[4]林君.电磁驱动可控震源地震勘探原理及应用[M].北京:科学出版社,2004:1~196.
[5]Albin K.Kerekes.Seismic array design byspatial convolution.Geophysics,2001,66(4):1195~1207.
[6]David I and Havelock.Sensor array beam-forming using random channel sampling:The aggregate beamformer.Journal of theAcoustical Society of America.2003,114(41):1997~2006.
[7]何樵登,熊维纲.应用地球物理教程——地震勘探[M].北京:地质出版社,1991:1~100.
[8]汪茂光,善伟,刘瑞祥.阵列天线分析与综合[M].北京:电子科技大学出版社,1989.
[9]魏文元,宫德明,陈必森.天线原理[M].北京:国防工业出版社,1995.
[10]张光义.相控阵雷达系统[M].北京:国防工业出版社,1994.
[11]李艳玲.AVO叠前反演技术研究[J].大庆石油地质与开发,2006,25(5):103~105.
[12]宋宗平.应用AVO属性数据进行波阻抗反演处理.石油地球物理勘探,2004,39(4)2004,39(4):465~467.
[13]潘仁芳.AVO的内涵与外延[J].石油天然气学报,2006,28(2):50~55.
[14]殷八斤,等,AVO技术的理论与实践[M].北京:石油工业出版社,1995:191~217.
[15]Paul Veeken,Marianne Rauch-Davies.AVO attribute analysis and seismicreser-voir characterization.EAGE.2006,firstbreak volume 24:41~52.
[16]Smith George C,Sutherland Robin A.Shortnote:The fluid factor as an AVOindicator[J].Geophysics,1996,61(5):1425~1428.
[17]陈习峰,张海洋.应用AVO属性识别含油砂体[J].小型油气藏,2005,10(1):20~23.
[18]Chopra S,Pruden D.Multiattribute seismicannalysis on AVO-derived parameters[J].The Leading Edge,2003,22(8),998~1002.
[19]熊定钰,钱忠平,赵波.拟合AVO属性反演[J].石油地球物理勘探,2005,40(6):646~651.
[20]王云专,杨立伟,李素华.剩余时差校正及泊松比反演[J].地球物理学进展,2006,21(1):214~218.
[21]张光义,赵玉杰.相控阵雷达技术[M].北京:电子工业出版社,2006.
[22]James L A,Carolyn P P.Some AVO failuresand what(we think)we have learned[J].The Leading Edge,1993,12(3):162~167.
[2]姜.基于相控震源的地震波定向方法研究,2006.
[3]姜,林君,陈祖斌,张林行.相控震源对地震勘探分辨率的影响.第21届中国地球物理综合学术年会会议论文集《中国地球物理2005》,2005:467.
[4]林君.电磁驱动可控震源地震勘探原理及应用[M].北京:科学出版社,2004:1~196.
[5]Albin K.Kerekes.Seismic array design byspatial convolution.Geophysics,2001,66(4):1195~1207.
[6]David I and Havelock.Sensor array beam-forming using random channel sampling:The aggregate beamformer.Journal of theAcoustical Society of America.2003,114(41):1997~2006.
[7]何樵登,熊维纲.应用地球物理教程——地震勘探[M].北京:地质出版社,1991:1~100.
[8]汪茂光,善伟,刘瑞祥.阵列天线分析与综合[M].北京:电子科技大学出版社,1989.
[9]魏文元,宫德明,陈必森.天线原理[M].北京:国防工业出版社,1995.
[10]张光义.相控阵雷达系统[M].北京:国防工业出版社,1994.
[11]李艳玲.AVO叠前反演技术研究[J].大庆石油地质与开发,2006,25(5):103~105.
[12]宋宗平.应用AVO属性数据进行波阻抗反演处理.石油地球物理勘探,2004,39(4)2004,39(4):465~467.
[13]潘仁芳.AVO的内涵与外延[J].石油天然气学报,2006,28(2):50~55.
[14]殷八斤,等,AVO技术的理论与实践[M].北京:石油工业出版社,1995:191~217.
[15]Paul Veeken,Marianne Rauch-Davies.AVO attribute analysis and seismicreser-voir characterization.EAGE.2006,firstbreak volume 24:41~52.
[16]Smith George C,Sutherland Robin A.Shortnote:The fluid factor as an AVOindicator[J].Geophysics,1996,61(5):1425~1428.
[17]陈习峰,张海洋.应用AVO属性识别含油砂体[J].小型油气藏,2005,10(1):20~23.
[18]Chopra S,Pruden D.Multiattribute seismicannalysis on AVO-derived parameters[J].The Leading Edge,2003,22(8),998~1002.
[19]熊定钰,钱忠平,赵波.拟合AVO属性反演[J].石油地球物理勘探,2005,40(6):646~651.
[20]王云专,杨立伟,李素华.剩余时差校正及泊松比反演[J].地球物理学进展,2006,21(1):214~218.
[21]张光义,赵玉杰.相控阵雷达技术[M].北京:电子工业出版社,2006.
[22]James L A,Carolyn P P.Some AVO failuresand what(we think)we have learned[J].The Leading Edge,1993,12(3):162~167.
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