三参数速度分析

Three-parameter velocity analysis

江汉油田物探处计算中心, 潜江433100

Computer Center, Geophysical Exploration Division, Jianghan Petrolcum Administration, Qianjiang 433100

本文简述了三维速度分析的基本原理和在三维地震资料处理方面的重要性, 以及该方法的实现过程──三参数速度分析方法。详细地讨论了三参数速度分析在程序设计中所遇到的几个问题及其解决技巧。通过对方法的理论证明、模型试验和实际资料处理, 将其解释结果与测井资料(速度测井、倾角洲井)对比, 两者基本吻合。本方法具有精度高、可信度强、实用性好等优点。

The paper briefly rcvicws the fundamcntals of the 3-D velocity analysis and the role it plays in a 3-D scismic data proccssing, for which a practical tcchnique called "three-parameter velocity analysis" is introduced wit b the emphasis on the difficulties cncountered in its programmin and the skills to solve them. Its good featurcs in accuracy, confidence and practicality havc been proved out by thcoretical vcrification,model cxperiments,field data processing and the correlation with well data (vclocity logging and dipmcter logging ).