柴北缘地区地震勘探多在山地、山前带、戈壁、沙漠等低降速带变化大的复杂地区进行, 静校正问题成为制约勘探成效的瓶颈。绿山层析静校正是一种非线性反演技术, 利用地震波初至时间和射线路径反演出近地表速度模型, 然后求取静校正值, 从而消除静校正影响, 提高地震剖面的分辨率。该方法应用于柴北缘地区, 提高了静校正计算的精度, 较好地解决了该区的静校正问题。

Since seismic exploration in the northern margin of Qaidam Basin is mainly carried out in mountainous region, foothill belt, gobi and desert, where the variation of lowvelocity layer is rapid, so static correction has become a bottleneck restricting the effect of exploration. Tomographic static correction technology of Greenmountain is a nonlinear inversion method, which inverses the near surface velocity structure by means of first break time and ray path gained by ray-tracingmethod, calculates the statics, eliminates the effect of static correction and improves the resolution of seismic section. The application in the northern margin of QaidamBasin shows that this method improves the statics precision and resolves the statics problemsuccessfully.