NMR束缚流体体积确定方法及其应用条件

METHOD OF DETERMINING BULK IRREDUCIBLE FLUID VOLUME WITH NMR AND IT'S CONSTRAINS IN APPLICATION

NMR测井不能直接测定束缚流体饱和度 (Swir)和束缚总流体 (BVI)体积 ,而是根据T2 分布和有效孔隙度(e)间接确定。其精度取决于解释T2 分布所选用的方法及其相关参数。NMR测井确定BVI方法有T2 截止值方法 ,频谱BVI(简称SBVI)方法和BVI加权函数方法。

Thus, the acurracy of S wir  and BVI is dependent on the methods and associated parameters used in the interpretation of the T 2 distribution data. The methods used in NMR logging include the T 2 cut?off value, T 2 spectra BVI and BVI weighting function.