Abstract：Based on the elliptic development theory,a new method for common shot gather velocity analysis was proposed and the \esponding workflow was introduced in this paper.At first for selected velocity range,based on common shot gathers the elliptic development and coherent stacking were used to calculate zero offset stacking section for every velocity,secondly by sorting the calculated zero offset stacking sections,the common normal emergence point velocity spectrum were generated,according to the maximum energy criterion,the velocity for every common normal emergence point was determined,at last by utilizing the picked velocity,the true zero offset stacking sections were acquired.In the velocity analysis method,the previously sorting of the velocity analysis gathers was not needed,and the common reflection point dispersion in routine velocity analysis was avoided.The results of model testing demonstrate the validity and accuracy of this method.
杜启振, 胡晓婷. 椭圆展开法共炮点道集速度分析方法[J]. 石油地球物理勘探, 2010, 45(3): 332-336.
Du Qi-zhen, Hu Xiao-ting. Common shot gather velocity analysis based on the elliptic development method. OGP, 2010, 45(3): 332-336.
