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首页> 外文期刊>Chinese science bulletin >Fractal classification and natural classification of coal pore structure based on migration of coal bed methane
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Fractal classification and natural classification of coal pore structure based on migration of coal bed methane

机译：基于煤层气运移的煤孔结构分形和自然分类

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摘要

According to the data of 146 coal samples measured by mercury penetration, coal pores are classified into two levels of <65 nm diffusion pore and >6S nm seeping pore by fractal method based on the characteristics of diffusion, seepage of coal bed methane(CBM) and on the research results of specific pore volume and pore structure. The diffusion pores are further divided into three categories: <8 nm micropore, 8-20 nm transitional pore, and 20-65 nm mini-pore based on the relationship between increment of specific surface area and diameter of pores, while seepage pores are further divided into three categories: 65-325 nm mesopore, 325-1000 nm transitional pore, and >1000 nm macropore based on the abrupt change in the increment of specific pore volume.
机译：根据煤层甲烷的扩散，渗流特征，通过分形法，根据146份煤的汞渗透数据，采用分形法将煤孔分为<65 nm扩散孔和> 6S nm渗水孔两级。以及关于特定孔体积和孔结构的研究成果。根据比表面积增加与孔直径之间的关系，将扩散孔进一步分为三类：<8 nm微孔，8-20 nm过渡孔和20-65 nm小孔，而渗流孔更进一步根据比孔体积增量的突然变化，分为三类：65-325 nm中孔，325-1000 nm过渡孔和> 1000 nm大孔。

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