Numerical simulation and parameter analysis of NMR T₂-D distributions of tight sandstone saturated with a gas-water two-phase fluid

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• 作者：Jiangfeng Guo^a ; ^b ; Ranhong Xie^a ; ^b ; ^{xieranhong@cup.edu.cn}
• 关键词：Tight sandstone ; NMR ; Numerical simulation ; Random-walk method ; T2&ndash ; D distribution ; Gas&ndash ; water two-phase fluid
• 刊名：Journal of Natural Gas Science and Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：37
• 期：Complete
• 页码：502-511
• 全文大小：2195 K
• 卷排序：37

文摘

T2–D distributions of tight sandstone saturated with a gas–water two-phase fluid are simulated. T2–D distribution for the hybrid TE1 group displays water and gas signals accurately. The higher data SNR, the better ability to identify gas and water based on the T2–D distribution.