利用核磁共振研究页岩孔径分布的方法

发布时间：2018-06-03 06:30

  本文选题：页岩 + 核磁共振　； 参考：《地质论评》2017年S1期

【摘要】：正页岩作为一种非常规油气储集岩,它的孔隙状结构特征与常规储层差异较大,因此常规孔隙结构表征方法对其孔隙的刻画往往并不准确。近年来发展的核磁共振技术在测井以及表征孔隙结构等油气勘探领域有着广泛的应用,逐渐成为重要的储层评价方式。核磁共振法测定孔径分布是根据岩石饱和单相流体的核磁共振T_2谱可以反映其孔隙内部结构,并通过孔径与其中流体的驰豫时间T_2的正相关关系来进行换算获得。岩石孔隙流体的T_2与孔隙
[Abstract]:As a kind of unconventional oil and gas reservoir, the pore structure of normal shale is quite different from that of conventional reservoir, so the characterization of pore structure by conventional pore structure is often inaccurate. Nuclear magnetic resonance (NMR) technology developed in recent years has been widely used in oil and gas exploration fields such as logging and characterization of pore structure and has gradually become an important reservoir evaluation method. The determination of pore size distribution by nuclear magnetic resonance (NMR) method is based on the NMR T _ 2 spectrum of saturated single-phase fluid, which can reflect the pore structure of rock saturated single-phase fluid, and can be obtained by the positive correlation between pore size and relaxation time T _ 2 of the fluid in it. T _ 2 and pore of pore fluid in rock
【作者单位】： 西南石油大学地球科学与技术学院;
【基金】：国家重点基础研究发展计划外协项目(编号:GC2014ZC2614)的成果
【分类号】：P618.13
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本文编号：1971825