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核磁共振测井具有常规测井无法比拟的优越性,它可以直观、准确地提供储集层的孔隙度、渗透率,区分可动流体和束缚流体,反映储集层的孔隙结构。通过对某区CMR核磁孔隙度、渗透率与岩心孔、渗资料的对比分析,建立了两者之间的对应关系,力求精细描述准确的储集层参数;以压汞实验为基础,研究了毛管压力资料与CMR核磁孔径分布曲线的关系,为应用T2谱反演毛管压力曲线奠定了基础;通过求解地层的束缚流体饱和度,结合电阻率测井,采用阿尔奇饱和度解释模型,进行了油(气)层的识别和含油(气)饱和度的计算,从而拓宽了核磁共振测井资料的应用范围,为油(气)层的评价提供了一种新的方法。
NMR logging has the superiority of conventional logging. It can provide the reservoir porosity and permeability intuitively and accurately, and distinguish the movable fluid from the bound fluid, reflecting the pore structure of the reservoir. By contrasting and analyzing the CMR NMR porosity, permeability and core hole and infiltration data in a certain area, the corresponding relationship between the two is established and the precise reservoir parameters are carefully described. Based on the mercury intrusion experiment, The relationship between the capillary pressure data and the CMR NMR distribution curve lays the foundation for the inversion of the capillary pressure curve by using the T2 spectrum. By solving the bound fluid saturation of the formation, combining the resistivity logging and the Archie saturation interpretation model, Oil (gas) layer identification and oil (gas) saturation calculation, which broaden the application of NMR logging data, and provide a new method for the evaluation of oil (gas) layer.