Imaging pore structure and connectivity by high resolution NMR microscopy

被引：0
|
作者：
Doughty, D.A. [1 ]
Tomutsa, L. [1 ]
机构：
[1] BDM Petroleum Technologies, PO Box 2543, Bartlesville OK 74005, United States
来源：
International journal of rock mechanics and mining sciences & geomechanics abstracts | 1997年 / 34卷 / 3-4期
关键词：
Image reconstruction - Nuclear magnetic resonance spectroscopy - Porosity - Porous materials - Sandstone - Three dimensional;
D O I：
10.1016/S1365-1609(97)00097-X
中图分类号：
学科分类号：
摘要：
Magnetic resonance imaging (MRI) experiments were performed on brine saturated core plugs from several sandstones. A novel method was developed using this higher resolution data to independently determine the porosity from histograms of image voxel intensity which estimates the contribution from fractionally filled voxels. The method appeared to significantly overestimate the porosity for the synthetic porous ceramic rock. Using software, significant differences in the pore connectivity in the were observed in the different samples.
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