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在塔里木盆地北部雅克拉地区，用地震资料常规解释法提取的界面平均速度规律性差，闭合差和闭合差的约方差较大，在对界面平均速度编辑平滑的过程中加入了较多的人工干预，使得提取的界面平均速度和时深转换的构造深度精度低。针对上述问题，我们提出了一种新的界面平均速度提取方法，选择一种拟合函数对叠加速度一时间对进行拟合；统计分析出拟合系数闭合差中的系统部分并对其进行校正，实现对叠加速度闭合差的校正；依据积分形式的DIX公式和经过闭合差校正后的拟合函数，通过变换得到界面平均速度和界面深度与界面反射时间之间的函数关系。应用效果表明，本方法具有精度高、效率高的特点。
In the Yakela region of the northern Tarim Basin, the average velocity of the interface extracted by the conventional interpretation method of seismic data is poor, and the approximate variance of the closure difference and the closure difference is relatively large. In the process of editing and smoothing the average velocity of the interface, more manual intervention is added , Making extraction of the interface average velocity and depth of the depth of the conversion depth of the low accuracy. In order to solve the above problems, we propose a new method to extract the average speed of the interface, choose a fitting function to fit the stacking speed for a time, and statistically analyze and correct the system part of the fitting difference closing difference , And the correction of the closing difference of the stacking speed is realized. Based on the integral form of the DIX formula and the closing difference corrected fitting function, the functional relationship between the average speed of the interface and the interface depth and the interface reflection time is obtained through transformation. The application effect shows that the method has the characteristics of high precision and high efficiency.