| 高精度三维迭代叠加方法研究与应用 |
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| 引用本文： | 蒋立,蒋宏,朱明,谭佳.高精度三维迭代叠加方法研究与应用[J].新疆地质,2011,29(3):348-351. |
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| 作者姓名： | 蒋立 蒋宏 朱明 谭佳 |
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| 作者单位： | 1. 中国石油新疆油田分公司勘探开发研究院,地球物理研究所,新疆 乌鲁木齐830011
2. 中国石油塔里木油田分公司开发事业部,新疆库尔勒,841000 |
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| 摘 要： | 速度分析和静校正精度高低影响地震数据叠加效果.常规速度分析是建立在时距曲线符合双曲线假设基础上,实际反射波旅行时并不总是满足双曲线规律,存在静校正误差,特别是中短波长静校正量会扭曲反射波双曲线,不准确正常时差无法使动校后CMP道集上地震道反射同相轴在叠前对齐.本文介绍高精度三维迭代叠加方法,是利用双方向倾角扫描方法建立三维模型道,利用CMP道集与模型道相关求取并消除剩余时差,经保振幅叠加后取得明显效果.
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| 关 键 词： | 时差 剩余 倾角 扫描 叠加 |
THE RESEARCH AND APPLICATION OF 3D ITERATIONS STACK METHOD |
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| JIANG Li,JIANG Hong,ZHU Ming,TAN Jia.THE RESEARCH AND APPLICATION OF 3D ITERATIONS STACK METHOD[J].Xinjiang Geology,2011,29(3):348-351. |
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| Authors: | JIANG Li JIANG Hong ZHU Ming TAN Jia |
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| Institution: | JIANG Li,JIANG Hong,ZHU Ming,TAN Jia,(1.Institute of Geophysics,Research Institute of Exploration and Development,Xinjiang Oilfield Company,PetroChina,Urumqi,Xinjiang,830013,China,2.Department of Development,Tarim Oilfield Company,Petrochina,Korla,841000,China) |
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| Abstract: | The precision of velocity analysis and static affects the result of stack.The conventional velocity analysis method assumes that two-way reflector travel-time curves versus offset are hyperbolic.In fact,actual two-way reflector travel-time curves often aren't hyperbolic.The static errors,especially the static errors of short or medium wave length can twist the hyperbolic curves of reflector travel-time.Inaccurate normal movement can't align the reflector events of CMP gather after NMO.We discuss a new metho... |
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| Keywords: | Movement Residual Dip Scanning Stack |
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