基于核磁共振测井资料构建水谱库的流体性质识别方法

摘要

The authors present a new method to identify fluid property based on the water-spectrum database by NMR logging T2 spectra in Hailer area.The T2 distribution spectrum includes the information of pore structure , water and hydrocarbon .The water spectra come from NMR logging T 2 spectrum of standard water layer , which equates to eliminate effects of hydrocarbon .The basic principle is using the difference between the constructed water spectrum and the measured spectrum to identify reservoir fluid property .It is proved that the application effect is perfect in Hailer area .%以海拉尔地区为例，提出了基于核磁共振T2谱构建水谱库进行流体性质识别的一种新方法，实测核磁谱包含了孔隙结构、水和油气的信息，构建的水谱来自于水层的核磁实测谱，相当于消除了油气的影响，其基本原理是应用构建的水谱库与实测谱的差异识别流体性质。通过在海拉尔地区应用，得到了较好的应用效果。