【摘要】 本文给出了一种VSP资料共炮点道集地震资料反射成像的方法，它是由一种通过射线追踪求格林函数的方法，求出各成像点到各炮点和检波点的射线旅行时、射线振幅和射线路径，然后根据Snell定律找出满足反射定律的炮检对，利用约束加权克希霍夫法进行成像。本方法适应速度的纵向和横向变化，它优于简单的VSP－CDP资料转换成像方法，通过模型和实际资料的成像应用表明，此法不仅成像精度高，而且有利于改善剖面的频率特性。更多还原

【Abstract】 A new reflection image method for VSP common-shotpoint gather data is rec-ommended here. First, the travel time,amplitudes and path along each seismic raybetween imaging point and shotpoint (or receiving point) are estimated by derivingGreen’s function from ray tracing. Then,shotpoint-receiver pairs which meet reflec-tion law are found by using Snell’s law. Finally,prestack depth imaging is achievedby using constraint weighted Kirchhoff integral. This method is adaptable to thevertical and lateral variations of velocity,and it is better than usual VSP-CDP dataconversion iruaging method. Modeling and real data imaging results show that themethod is accurate and improves frequency characteristic of seismic section.更多还原