Characterization of sand sediment by pore size distribution and permeability using proton nuclear magnetic resonance measurement
Characterization of sand sediment by pore size distribution and permeability using proton nuclear magnetic resonance measurement
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DOI：
10.1029/2007jb005403
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发表时间：
2008-07
影响因子：
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通讯作者：
H. Minagawa;Y. Nishikawa;Ikuko Y. Ikeda;K. Miyazaki;N. Takahara;Y. Sakamoto;T. Komai;H. Narita
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文献类型：
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作者：
H. Minagawa;Y. Nishikawa;Ikuko Y. Ikeda;K. Miyazaki;N. Takahara;Y. Sakamoto;T. Komai;H. Narita
[1]利用质子核磁共振（NMR）测量沉积物的孔径分布，以表征含甲烷水合物沉积物的孔径分布和渗透率。本文对不同粒度分布的砂质沉积物进行了测试，作为天然甲烷水合物沉积物的基础研究和应用。沉积物的孔径分布和孔隙度测定核磁共振和压汞法。将基于达西定律的水流法测定的泥沙绝对渗透率与基于泥沙输移比方程的核磁共振波谱法计算的渗透率进行了比较。NMR谱也进行了分析，以获得更高的空间分辨率的孔径分布的转换技术。
[1] This study used proton nuclear magnetic resonance (NMR) to measure pore size distribution of sediment in order to characterize methane hydrate-bearing sediment by pore size distribution and permeability. Sand sediment with different grain size distributions was measured as fundamental research and for application of natural methane hydrate-bearing sediment. Sediment pore size distribution and porosity were measured by NMR and mercury porosimetry. The absolute permeability of sediment measured by water flow based on the Darcy law was compared with the permeability calculated from NMR spectra based on the sediment delivery ratio equation. NMR spectra were also analyzed by a conversion technique in order to obtain pore size distribution with higher spatial resolution.