常村矿构造煤储层特性及其影响因素

于丽雅

常村矿构造煤储层特性及其影响因素

于丽雅

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出版历程
- 发布日期: 2018-01-19

Reservoir Characteristic of Tectonic Coal and Its Influencing Factors in Changcun Coal Mine

YU Liya

摘要

摘要: 为了研究构造煤储层结构特性，以山西潞安常村煤矿为研究对象，针对4种不同破坏类型的构造煤，通过压汞法测试了微观孔隙结构特征，并分析了其影响因素。研究结果表明：不同变形程度的构造煤孔隙结构差异显著，微孔和过渡孔的比表面积分别在2.473 4~4.254 2 m²/g、0.893 2~1.708 9 m²/g范围内变化；构造作用使得煤中的大孔和中孔数量大量减少；随煤层埋深和破坏程度的增加，煤体平均孔径和孔隙率均呈现出先慢后快的非线性变化特征，煤体孔径持续减小，微孔所占比例持续增加。
- 构造煤 /
- 储层 /
- 孔隙结构 /
- 影响因素 /
- 煤与瓦斯突出
Abstract: In order to study the reservoir characteristics of tectonic coal, Changcun Coal Mine in Shanxi Lu’an Group was taken as the research background. For 4 kinds of tectonic coal with different destructive types, the mercury intrusion method was used to measure the microscopic pore structure characteristics, and its influencing factors were also analyzed. The research results show that pore structure varies a lot among tectonic coal with different deformation degrees. The specific surface areas of micro-pores and transition pore ranges are from 2.473 4 m²/g to 4.254 2 m²/g and from 0.893 2 m²/g to 1.708 9 m²/g, respectively. The macro-pores and mesopores in coal decrease to a large extent under the effect of tectonic deformation. With the increase of coal burial depth and deformation degree, the average coal pore diameter and porosity display a first rapid and then slow nonlinear variation, and the pore diameter continuously declines. Consequently, the proportion of micro-pores continues to increase.
- tectonic coal /
- reservoir /
- pore structure /
- influencing factors /
- coal and gas outburst

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参考文献(14)

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