Unsaturated hydraulic conductivity from nuclear magnetic resonance measurements
Unsaturated hydraulic conductivity from nuclear magnetic resonance measurements
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DOI：
10.1029/2006wr004955
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发表时间：
2006-07-14
影响因子：
5.4
通讯作者：
Perunarkilli, R.
中科院分区：
文献类型：
--
作者：
Ioannidis, M. A.;Chatzis, I.;Perunarkilli, R.
用核磁共振（NMR）研究了重力驱动下均匀尺寸玻璃珠柱中水的排水。在柱内不同位置测量了质子磁化和自旋弛豫时间随排水时间的变化。在这些测量的基础上，Chen等人（1994）最初提出的直接从不同饱和度的松弛时间数据计算水相对渗透率的模型首次得到了成功的验证。
Gravity-driven drainage of water from a column of glass beads of uniform size is studied using nuclear magnetic resonance (NMR). The evolution of proton magnetization and its spin-spin relaxation time is measured as a function of drainage time at different locations within the column. On the basis of these measurements a model for calculating water relative permeability directly from relaxation time data at various saturations, originally proposed by Chen et al. (1994), is successfully tested for the first time.