用核磁共振T2分布定量求取孔隙结构参数的区域性对比研究

核磁共振测井横向弛豫时间(T2)分布能够很好地反映孔隙结构信息．而且测井信息具有纵向连续性，所以研究核磁共振T2分布与孔隙结构参数之间的定量关系有其可行性和必要性。用两个地区的核磁共振T2分布对孔隙结构进行定量研究。借助相应的压汞测试资料对比分析，找到与核磁共振测井中的T2几何平均值相关性好的孔隙结构参数，并确定它们之间的定量关系式，寻找核磁共振T2分布与孔隙结构参数之间的定量关系的区域性差别。

Regional Comparison of Pore Structural Parameters Quantitatively Derived with T2 Distribution of NMR

NMR lateral relaxation time ( T2 ) distribution can integrally reflect pore structural information, and logging information has vertical continuity, so there is a possibility and a necessity for studying the quantitative correlations between NMR T2 distribution and pore structural parameters, a quantitative study is performed on the pore structure by using NMR T2 distribution from 2 regions. With the help of comparison of corresponding mercury injection data, the pore structural parameters that correlate with NMR T2 geometric mean value are obtained, and quantitative-relational expression between them is established, regional difference of the quantitative relations between NMR Tz distribution and the pore structure is determined.