三维转换波资料处理方法研究及其应用
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摘要
三维多波地震勘探是地震勘探当前研究的热点。本文介绍了其转换波处理中的极化滤波去噪、三分量旋转、三维转换波转换点定位、四参数速度分析和叠前时间偏移等技术,给出了三维转换波处理的总流程和对胜利油田垦71地区单点数字检波器采集的三维转换波资料的处理效果。
3D converted wave seismic exploration has been becoming the hotspot of seismic exploration in recent years. The key processing techniques of 3D converted wave seismic exploration, including polarization filtering noise suppression, component rotation, converted point position, velocity analysis and pre-stack time migration, etc, are discussed mainly in the paper. Applying these methods to the real 3D converted wave data acquired by digital MEMS (micro-electro-mechanical system) sensors at Ken 71 in Shengli oilfield, good results are accepted and a feasible processing workflow is set up.
3D converted wave seismic exploration has been becoming the hotspot of seismic exploration in recent years. The key processing techniques of 3D converted wave seismic exploration, including polarization filtering noise suppression, component rotation, converted point position, velocity analysis and pre-stack time migration, etc, are discussed mainly in the paper. Applying these methods to the real 3D converted wave data acquired by digital MEMS (micro-electro-mechanical system) sensors at Ken 71 in Shengli oilfield, good results are accepted and a feasible processing workflow is set up.
引文
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[6]毕丽飞,王延光,夏吉庄等.四参数速度分析法及其在垦71区转换波处理中的应用.油气地球物理,2006,4(3):27~31
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[8]Li X Y,Yuan J.Converted-wave moveout and conversion-point equations in layered VTI media:theory and application.Journal of Applied Geophysics,2003,54:297～318
[9]黄中玉,朱海龙.转换波叠前偏移技术新进展.勘探地球物理进展,2003,26(3):167~171
[10]王淑荣,毕丽飞,张有芳等.叠前深度偏移及其应用效果分析.石油物探,2005,44(增刊):8~9
[2]石建新,王延光,毕丽飞等.多分量地震资料处理解释技术研究.地球物理学进展.2006,21(2):505～511
[3]毕丽飞,李振春,王延光等.转换波处理中共转换点的定位.勘探地球物理进展,2005,28(5):353～356
[4]Dai H,Li X.Anisotropic migration and model building for4-C seismic data:A case study from Alba.2001,71st Ann.Internat.Mtg:Soc.of Expl.Geophysics,795～798
[5]魏修成,刘洋.高精度转换波速度分析.石油勘探与开发,2000,27(2):57～61
[6]毕丽飞,王延光,夏吉庄等.四参数速度分析法及其在垦71区转换波处理中的应用.油气地球物理,2006,4(3):27~31
[7]李录明,罗省贤.P—SV转换波速度分析及解释方法.石油地球物理勘探,1995,30(1):66~74
[8]Li X Y,Yuan J.Converted-wave moveout and conversion-point equations in layered VTI media:theory and application.Journal of Applied Geophysics,2003,54:297～318
[9]黄中玉,朱海龙.转换波叠前偏移技术新进展.勘探地球物理进展,2003,26(3):167~171
[10]王淑荣,毕丽飞,张有芳等.叠前深度偏移及其应用效果分析.石油物探,2005,44(增刊):8~9
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