摘要
提出了在转换波资料处理中求取任意界面转换点位置的一种迭代算法。该方法在炮检距和横、纵波速度以及反射界面倾角已知的条件下 ,对任一转换波旅行时均可通过迭代方法确定其相应的转换点的位置 ,方法简单且有效 ,一般情况下 ,只需进行几次迭代就可得到精度很高的解 ,迭代过程稳定、收敛。该迭代方法不仅可直接用于转换波CCP道集抽取 。
An iteration method for determination of conversion points at arbitrary interfaces is advanced in this paper. This method can calculate the locations of conversion points with very high precision for any travel time of converted waves, generally through not more than three iterations, given the shot-to-receiver distance, the S-wave and P-wave velocities, and the dip angle of interface are known. The method is simple, efficient and stable. It can not only be applied to CCP gathering, but also can be applied to converted wave velocity analysis and NMO.
出处
《石油物探》
EI
CSCD
2002年第1期26-30,共5页
Geophysical Prospecting For Petroleum
关键词
算法
应用
多分量地震
转换波处理
共转换点
迭代法
速度分析
multi-component seismic
converted wave processing
common conversion point
iteration method
velocity analysis
