物理化学学报 >> 1994, Vol. 10 >> Issue (06): 484-488.doi: 10.3866/PKU.WHXB19940602

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岩石的核磁共振弛豫时间加权微成像

肖立志, 杜有如, 叶朝辉   

  1. 中国科学院武汉物理研究所，波谱与原子分子物理国家重点实验室，武汉 430071
  • 收稿日期:1994-03-02 修回日期:1994-04-15 发布日期:1994-06-15
  • 通讯作者:

NMR Relaxation Time Weighted Micro-imaging Method for Rock Samples

Xiao Li-Zhi, Du You-Ru, Ye Zhao-Hui   

  1. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan 430071
  • Received:1994-03-02 Revised:1994-04-15 Published:1994-06-15
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关键词: NMR微成像, T1加权像, T2加权像, 双指数弛豫, 岩石样品

Abstract:

According to the relations of pixel signal intensity with the repetition time T_R and echo time T_E in spin-echo single slice imaging pulse sequence, by combining the multi-exponential relaxation procedure of fluids saturated in porous media, tlle information about pore structure of the tested rock is obtained with T_1- and T_2-weighted microimagings. The macro- and micro-pore regions can be distinguished with the information.

Key words: NMR microscopy, T1-weighted image, T2-weighted image, Biexponential relaxation, Rock sample