用核磁共振测井确定渗透率的原理和方法分析

摘要

Comparison of various permeability equations in conventional logging and nuclear magnetic resonance logging indicates that there is an inter-relationship among these equations． The calculated results of some NMR permeability equations are compared with that of experimental permeability， which shows that the former has a good relationship with the latter；and the core and formation permeability can be exactly acquired from the newly-improved permeability equation．%王光海，李高明．用核磁共振测井确定渗透率的原理和方法分析．测井技术，2001，25（2）：101～104rn对常规测井和核磁共振测井的渗透率公式进行了比较，发现各渗透率公式存在相互联系。几种核磁共振测井渗透率公式的计算结果和实验室渗透率的对比表明核磁共振参数和渗透率有很好的相关性；改进的渗透率公式可以准确地求取岩心和地层的渗透率。