高分辨率水平叠加方法及应用
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摘要
叠加技术可提高地震资料的信噪比和分辨率,但当地震波非同相叠加时,就会使高频信号受损,影响地震资料的叠加效果.针对叠加技术进行了具体分析,结合实例,提出了一种分步处理方法,即先进行剩余时差校正,然后做频率域叠加.通过对理论资料和实际地震数据的处理,验证该方法的可行性.
In order to improve the resolution and signal-noise ratio, horizontal stacking technique usually used to be employed before. But high frequency signal could be damaged when seismic waves were unable to achieve the goal in phase stacking. So people advanced some methods in real seismic data processing, which, however, was not very perfect. Based on those problems we analyzed particularly examples to give a new processing method, which can correct the residual move out correction of each trace and perform the stacking in frequency domain, theoretical real result shows that the method is promising.
In order to improve the resolution and signal-noise ratio, horizontal stacking technique usually used to be employed before. But high frequency signal could be damaged when seismic waves were unable to achieve the goal in phase stacking. So people advanced some methods in real seismic data processing, which, however, was not very perfect. Based on those problems we analyzed particularly examples to give a new processing method, which can correct the residual move out correction of each trace and perform the stacking in frequency domain, theoretical real result shows that the method is promising.
引文
[1] 李庆忠.用剔除拟合法求纵波正入射剖面—一种取代水平叠加的处理技术[J].石油地球物理勘探,1995,30(2):147-167.
[2] 王云专,杨利伟,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(3):204-208.
[3] GAROTTA R.About compressional,converted mode and shear statics[A].Int'1Exposition and72nd annual meeting salt lake city[C].Salt lake City:SEG,2002.
[4] 渥·伊尔马滋.地震资料分析—地震资料处理、反演和解释[M].刘怀山,译.北京:石油工业出版社,2006.
[5] BROUWERJ H.I mproved NMOcorrection with a specific applicationto shallowseismic data[J].Geophysical prospecting,2002,50:225-257.
[6] 宋伟强,李卫忠,王成礼.济阳拗陷深层地震资料处理技术及应用[J].石油物探,2002,41(2):161-168.
[7] 林伯香,孙建国.相位替换法剩余时差校正[J].石油物探,2001,40(3):15-22.
[8] 邱春玲,邱东玲,段清明.地震勘探资料频率域叠加方法研究[J].吉林大学学报:地球科学版,2002,32(1):92-95.
[2] 王云专,杨利伟,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(3):204-208.
[3] GAROTTA R.About compressional,converted mode and shear statics[A].Int'1Exposition and72nd annual meeting salt lake city[C].Salt lake City:SEG,2002.
[4] 渥·伊尔马滋.地震资料分析—地震资料处理、反演和解释[M].刘怀山,译.北京:石油工业出版社,2006.
[5] BROUWERJ H.I mproved NMOcorrection with a specific applicationto shallowseismic data[J].Geophysical prospecting,2002,50:225-257.
[6] 宋伟强,李卫忠,王成礼.济阳拗陷深层地震资料处理技术及应用[J].石油物探,2002,41(2):161-168.
[7] 林伯香,孙建国.相位替换法剩余时差校正[J].石油物探,2001,40(3):15-22.
[8] 邱春玲,邱东玲,段清明.地震勘探资料频率域叠加方法研究[J].吉林大学学报:地球科学版,2002,32(1):92-95.
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