Study on the Pore-throat structure characterization and nano grouting law of the Low-permeability mudstone based on NMR-RSM methods

Feng Guo,Zhengzheng Xie,Nong Zhang,Chenghao Zhang, Hua Guo,Guangzhen Cui,Zhe Xiang

Construction and Building Materials（2022）

引用 6|浏览2

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摘要

•A novel test method coupling NMR + RSM data is proposed.•Pore-throats are mainly in size of 0.1 μm, taking a maximum of 48.39% of the space.•The relations of grouting effect with the permeability and pressure are discussed.•The optimal grouting pressure and the critical value of injectable permeability are found.

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关键词

Mudstone,Low-permeability,Nanosilica grouting,Low-field NMR

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