| 地表复杂区的三维地震数据采集 |
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| 引用本文： | 徐文荣.地表复杂区的三维地震数据采集[J].石油地球物理勘探,1991(4). |
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| 作者姓名： | 徐文荣 |
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| 作者单位： | 石油地球物理勘探局地调二处 |
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| 摘 要： | 在我国东部含油气区,由于村镇稠密、水网纵横、工业设施庞大、大小障碍物分布广泛,采用大面积统一规则的三维地震测网施工,遇到了许多困难。本文从速度分析对炮检距分布范围的要求、不同目的层的有效覆盖次数及三维地震非纵观测误差分析出发,结合几个采集的实例,就地表复杂地区如何设计最佳三维地震观测方式以确保采集效果问题进行了讨论。
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| 关 键 词： | 三维地震勘探 数据采集 炮检距 覆盖次数 非纵观测 观测系统 |
Three-dimensional seismic data acquisition in surface complicated area |
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| Xu Wenrong The Second Geological Survey Division,Bureau of Oil Geophysical Prospecting. P.O.Box ,Kaifeng City,Henan Province,China,Internal postcode:.Three-dimensional seismic data acquisition in surface complicated area[J].Oil Geophysical Prospecting,1991(4). |
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| Authors: | Xu Wenrong The Second Geological Survey Division Bureau of Oil Geophysical Prospecting POBox Kaifeng City Henan Province China Internal postcode: |
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| Affiliation: | Xu Wenrong The Second Geological Survey Division,Bureau of Oil Geophysical Prospecting. P.O.Box 5,Kaifeng City,Henan Province,China,Internal postcode: 475002 |
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| Abstract: | In hydrocarbon-bearing area in East China, 3-D seismic operation in an unified big-area seismic grid usually meets many difficulties because of multitudinous villages and towns, river network,huge industrial installations and widely scattering obstacles. It is discussed, with several examples, how we design the optimum 3-D seismic layout to guarantee good data acquisition in surface-complicated area, with the considerations of reasonable offset distribution required by velocity analysis, CDP coverage numbers for different targets, and error analysis for 3-D seismic broadside observation. |
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| Keywords: | three-dimensional seismic exploration data acquisition offset CDP coverage number broadside layout |
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