真地层切片的拾取及应用
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摘要
地震切片(水平切片、沿层切片和地层切片)技术是地震资料解释的一种常用手段,但在复杂地质条件下存在穿时现象。本文依据前人对地震切片技术穿时问题的认识,基于地震资料同相轴为基本等时地层单元的假设,严格沿着地震资料同相轴产状变化趋势,应用基于倾角控制体的自动追踪技术获得了真地层切片,在此基础上结合地质特征及地震响应特征,搭建了目的层段的精细等时地层格架,开展了储层内部小层对比划分、垂向构造变化以及横向展布特征分析,取得了较好的效果。
Seismic slice(horizontal slice,stratigraphic slice and stratal slice) technique is a widely used means in seismic interpretation,however the time-crossing phenomenon was sometimes developed under complicated geology conditions.According to the predecessor's understanding for the phenomenon,and based on the basic assumption on which the seismic events are the basic isochronous stratum unit and by strictly following the occurrence changing trends of the seismic events the true stratal slices were acquired by applying automatic tracking technique which is based on dip control body.Based on the slices and by combining geological characteristics and seismic response characteristics,the accurate isochronous stratigraphic framework of the target layers were established,the sub-layer correlation and classification inside the reservoir,the vertical structure changing and lateral distribution analysis were conducted,the excellent results were achieved in the research.
Seismic slice(horizontal slice,stratigraphic slice and stratal slice) technique is a widely used means in seismic interpretation,however the time-crossing phenomenon was sometimes developed under complicated geology conditions.According to the predecessor's understanding for the phenomenon,and based on the basic assumption on which the seismic events are the basic isochronous stratum unit and by strictly following the occurrence changing trends of the seismic events the true stratal slices were acquired by applying automatic tracking technique which is based on dip control body.Based on the slices and by combining geological characteristics and seismic response characteristics,the accurate isochronous stratigraphic framework of the target layers were established,the sub-layer correlation and classification inside the reservoir,the vertical structure changing and lateral distribution analysis were conducted,the excellent results were achieved in the research.
引文
[1]Zeng Hongliu,Backus M M,Barrow K Tand Tyler N.OfficeStratal slicing,Part I:Realistic3-D seismic mod-el.Geophysics,1998,63(2):502～513
[2]Zeng Hongliu,Henry S C and Riola J P.Stratal sli-cing,Part II:Real3-D seismic data.Geophysics,1998,63(2):514～522
[3]张军华,周振晓,谭明友等.地震切片解释中的几个理论问题.石油地球物理勘探,2007,42(3):348～361
[4]钱荣均.对地震切片解释中一些问题的分析.石油地球物理勘探,2007,42(4):482～487
[5]刘洪林,杨微,王江等.地层切片技术应用的局限.石油地球物理勘探,2009,44(增刊1):125～129
[6]王长江,刘书会,穆星.提高地震属性分析精度的方法及其应用.石油物探,2004,43(增刊):112～114
[7]王鹏,高伟,张红斌.地震切片演化技术在乍得A区块的应用.石油地球物理勘探,2008,43(增刊1):115～118
[8]刘勇,邓安雄,高洁.应用Land Mark解释模块制作地层切片识别非构造圈闭.石油地球物理勘探,2009,44(增刊1):101～104
[2]Zeng Hongliu,Henry S C and Riola J P.Stratal sli-cing,Part II:Real3-D seismic data.Geophysics,1998,63(2):514～522
[3]张军华,周振晓,谭明友等.地震切片解释中的几个理论问题.石油地球物理勘探,2007,42(3):348～361
[4]钱荣均.对地震切片解释中一些问题的分析.石油地球物理勘探,2007,42(4):482～487
[5]刘洪林,杨微,王江等.地层切片技术应用的局限.石油地球物理勘探,2009,44(增刊1):125～129
[6]王长江,刘书会,穆星.提高地震属性分析精度的方法及其应用.石油物探,2004,43(增刊):112～114
[7]王鹏,高伟,张红斌.地震切片演化技术在乍得A区块的应用.石油地球物理勘探,2008,43(增刊1):115～118
[8]刘勇,邓安雄,高洁.应用Land Mark解释模块制作地层切片识别非构造圈闭.石油地球物理勘探,2009,44(增刊1):101～104
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