共反射段相干反演方法及其应用

A common-reflecting-segment-based coherence inversion method and its application

1. 江苏石油化工学院信息系,江苏常州213016;2. 长江勘测技术研究所,湖北武汉430011

1. Information Department of Jiangsu College of Petroleum Chemical Industry, Changzhou 213016, China;2. Yangtze River Research Institute of Survey Technology, Wuhan 430011,China

探讨了层状介质中由时间确定速度、深度的模型,给出了相应的共反射段相干反演方法。数值模拟结果表明这种方法精度较高,抗噪性能强。对荆江松滋口的部分浅层反射资料处理与现有资料吻合,表明该方法具有一定的应用前景.

In this paper, a velocity depth model is constructed for layered media. Based on the model, a common reflecting segment based coherence inversion method for determining velocities and depths from seismic data is derived. Numerical modeling shows that the method is characterized by higher precision, better stability, and smaller error accumulated among layers. The results obtained by applying the method to the shallow reflection data from Songzikou of Jing River are comparable with the existing information, indicating that this method is promising.