| 一种适用于横向外推的精细相干扫描方法 |
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| 引用本文： | 孙成禹,王学彩.一种适用于横向外推的精细相干扫描方法[J].中国石油大学学报(自然科学版),1998(3). |
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| 作者姓名： | 孙成禹 王学彩 |
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| 作者单位： | 石油大学石油资源科学系 |
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| 摘 要： | 为提高地震约束反演及相干去噪时相邻道间相关分析的精度，首次提出了一种新的相干扫描分析方法。在扫描时使用变化的时窗长度和时窗端点，通过加权求和扫描寻优，实现了包括反射波组平移、伸缩、增减等多种变化情形在内的复杂道间关系的描述。该方法为约束反演时，通过横向外推获得无井地震道的约束条件提供了更加精确的方法。对模型数据和实际资料的处理结果都证明了该方法的正确性和实用性。
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| 关 键 词： | 地震波 扫描 相关分析 信噪比 地震分辨率 数学模型 |
/ A NEW APPROACH OF FINER COHERENT SCANNING SUITABLE FOR LATERAL EXTRAPOLATION/ |
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| Sun Chengyu and Wang Xuecai./ A NEW APPROACH OF FINER COHERENT SCANNING SUITABLE FOR LATERAL EXTRAPOLATION/[J].Journal of China University of Petroleum,1998(3). |
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| Authors: | Sun Chengyu and Wang Xuecai |
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| Institution: | Dongying: 257062 |
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| Abstract: | A new method of finer coherent scanning is developed. This method uses varied length and points for scanning windows, and the information of time shifting, stretching, compressing, adding and vanishing of the events can be obtained. With this method we can get a more believable relationship between two near traces. This method can be used to the extrapolation for the constraints in seismic inversion with logging data or other processing, such as the signal noise separation approach. Both theoretical complex model and practical data are tested in this paper, and the satisfactory results have been obtained. |
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| Keywords: | seismic wave scanning correlation analysis signal noise ratio seismic resolution mathematical model |
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