用简单的射线轨迹可以在计算机上产生共深点地震反射资科,对处理技术的分析目前已广泛用于实际野外记录。具有常速的弯曲界面已用于模拟复杂的地质形态。选择了两个模型来阐明由弯曲地质界面而引起的问题,即:界面深度的横向变化,是非线性的,视迭加速度就产生大的空间变化。具有深层构造及不含风化层的三层模型被用作控制模型。同时,为了进行对比,控制模型的近地面插入一个厚度可变的低速风化层,低速层厚度比通常的风化层要厚一些,这里较好地运用了静校正法的技术。计算出了两个模型的传播时间、时差、视均方根速度及层速度。风化层对均方根述度及传播时间都引入了误差。所叙述的方法对这些误差进行了补偿。应用于传播时间的静校正使视均方根速度的起伏减小。厚风化层模型的各个数值都是“过校正”的,因此,对近地面和深部地带向斜(背斜)替换了假的背斜(向斜)。其结论:计算机模拟是处理共深点地震资料时分析专门问题的有用手段,诸如分析覆盖层横向变化大而引起的速度估算值误差等问题。 Using simple ray trajectories can produce common-point seismic reflection on the computer science, processing technology analysis has been widely used in actual field records. Curved interfaces with constant velocity have been used to simulate complex geological formations. Two models were chosen to illustrate the problems caused by bending the geological interface, ie, the lateral variation in the depth of the interface is nonlinear and depends on the superposition of space to produce large spatial variations. A three-layer model with a deep structure and without weathering layer is used as a control model. In the meantime, for comparison, the near-surface model of the control model is inserted into a low-velocity and low-velocity weathering layer. The thickness of the low-velocity layer is thicker than that of the normal weathering layer. The static correction technique is preferably used here. The propagation time, time difference, root mean square velocity and layer velocity of two models are calculated. Weathered layers introduce errors in both the root-mean-square (RMS) and propagation time. The method described compensates for these errors. Static correction applied to propagation time reduces the fluctuation of apparent RMS velocity. Thick weathering model values ​​are “overcorrect”, so fake anticlines (anticlines) are replaced for near-surface and deep-zone synclines (anticlines). The conclusion is that computer simulations are useful tools for analyzing specialized problems in coping deep seismic data, such as the analysis of velocity estimation errors due to large lateral variations in coverage.