推荐一种利用工作站环境极大提高速度模型建模效率和精度的方法。其主要技术是将层速度分析和图像偏移结合起来,由顶向下计算上覆层。即先求解指定层的深度和层速度参数,再进行下一更深地层的分析。该方法无须假定地震数据是双曲线性的,不要求进行叠前时间拾取,即能够产生二维和三维速度模型。应用该方法建立速度模型的处理流程是:1.对初始深度模型进行层速度分析,根据当前模型(CMP道集)和当前分析层底部的反射时间求取层速度.2.用同样的当前模型和反射时间进行图像偏移,结合 A method that utilizes the workstation environment to greatly improve the efficiency and accuracy of velocity model modeling is proposed. Its main technology is the combination of layer velocity analysis and image offset, calculated from top to bottom overlying. That is, first solve the specified layer depth and layer velocity parameters, and then the next deeper stratum analysis. The method does not need to assume that the seismic data are hyperbolic and does not require prestack time pick-up, ie, two-dimensional and three-dimensional velocity models can be generated. According to the current model (CMP gathers) and the reflection time at the bottom of the current analysis layer, the layer velocity is obtained.2. Using the same current model And reflection time for image shift, combined