泛克里格法在三维地震资料变速成图中的应用

Applying the universal Kriging to the variable-velocity mapping of 3-D seismic data

中国新星石油公司石油物探研究所, 南京 210014

Research Institute of Geophysical Prospecting for Petroleum, CNSPC, Nanjing 210014

本文介绍了一种基于泛克立格法（universalKriging）的三维地震资料变速构造成图技术及其应用于三维地震资料变速成图时的实例。该方法较好地解决了三维地震资料的变速成图问题, 具有消除速度随机误差、保持速度空间变化趋势、成图精度高等特点。

A technique for the variable-velocity structure mapping of 3-D seismic data which is based on the u-niversal Kriging is proposed in the paper. An example of using it in the variable-velocity mapping of 3-Dseismic data is given. The method has well solved the problem of the variable-velocity mapping of 3-Dseismic data. It can remove random velocity errors, preserve the spacial variation trend of seismic veloci-ty and has a high mapping accuracy.