当不同时期采集的地震剖面相交时,常常会产生闭合差。闭合差可以由不同的振幅、时间或不同的子波特征引起。我们通过把标量因子、静态时移和相位旋转用到各条测线上,就可以基本上校正这些闭合差。本文描述了计算2D地震测线上各个交点的振幅,时间和相位差的分式。然后用迭代最小平方法求各条测线的最佳闭合差校正值。计算中对极小平方法作了必要的修改,使其适用于非线性相位数据。所采用的各种算法均可靠、快速和精确。我们用这种方法在人 Closure differences often occur when the seismograms collected during different periods intersect. Closure differences can be caused by different amplitudes, times or different wavelet features. By applying scalar, static time-shift, and phase rotation to each line, we can essentially correct these closure differences. This article describes the fractional calculation of amplitude, time and phase differences at each point of intersection on a 2D seismic line. Then use the iterative least square method to find the best closed difference correction for each line. The calculation of the minimum level method made the necessary changes to make it suitable for nonlinear phase data. The algorithms used are reliable, fast and accurate. We use this method in people