Effects and Corrections for Mobile NMR Measurement |
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Authors: | Feng Deng Lizhi Xiao Huabing Liu Tianlin An Mengying Wang Zongfu Zhang Wei Xu Jiajie Cheng Qingming Xie Vladimir Anferov |
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Affiliation: | 1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, College of Geophysics and Information Engineering, 18 Fuxue Road, Changping, Beijing, 102249, People’s Republic of China
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Abstract: | Nuclear magnetic resonance (NMR) under motion has drawn significant attention in recent years. Motion of the NMR probe has serious effects on NMR measurement. For example, NMR logging normally runs at downhole condition with tool motion at a speed of 30 ft/min. We propose here methods for motion corrections of NMR data based on the quantitative analysis of motion effects on polarization and echo acquisition. We also produced a multi-functional NMR scanning system to verify the theoretical analysis. Presented experiments demonstrate that the theoretical and experimental results match very well. |
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