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Citation: Xiao Li-Zhi, Du You-Ru, Ye Zhao-Hui. NMR Relaxation Time Weighted Micro-imaging Method for Rock Samples[J]. Acta Physico-Chimica Sinica, ;1994, 10(06): 484-488. doi: 10.3866/PKU.WHXB19940602 shu

NMR Relaxation Time Weighted Micro-imaging Method for Rock Samples

1.
Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan 430071

Received Date: 2 March 1994
Available Online: 15 June 1994

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.
- NMR microscopy; T1-weighted image; T2-weighted image; Biexponential relaxation; Rock sample
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