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建立地震速度场的数据，主要来源于速度谱，速度的影响因素较复杂，并且由速度谱数据过渡到地层的层速度与平均速度的各种方法都存在一定的局限性，在速度数据体中异常数据较多。协克里格法在分析数据时，同时考虑了网格内数据点距离和方向的影响，能较好压制速度场中的异常数据，提高速度场数据的精度。应用该方法对某盆地Y构造带T6层平均速度数据进行处理，效果十分显著。
The data of the seismic velocity field are mainly derived from the velocity spectrum and the influencing factors of the velocity are complex. Various methods of velocity data transition from the velocity spectrum to the formation velocity and average velocity have some limitations. In the velocity data body Abnormal data more. In the analysis of data, Xie Kailige method also considers the influence of the distance and direction of the data points in the grid and can better suppress the abnormal data in the velocity field and improve the accuracy of the velocity field data. Using this method to process the average velocity data of layer T6 of Y-structural belt in a certain basin, the effect is very significant.