| 鄂尔多斯盆地煤储层低温氮吸附孔隙分形特征研究 |
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| 引用本文： | 童宏树,胡宝林. 鄂尔多斯盆地煤储层低温氮吸附孔隙分形特征研究[J]. 煤炭技术, 2004, 23(7): 1-3 |
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| 作者姓名： | 童宏树 胡宝林 |
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| 作者单位： | 中国矿业大学,环境学院,江苏,徐州,221100;安徽理工大学资源与环境工程系,安徽,淮南,232001 |
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| 基金项目： | 安徽省教育厅自然科学基金 (2 0 0 2kj2 6 3)，安徽理工大学博士基金 |
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| 摘 要： | 在利用低温氮吸附法测试鄂尔多斯盆地煤储层孔隙分布的基础上 ,计算了煤样的孔容及比表面分维数 ,并分析了煤储层对甲烷的吸附能力与孔隙分维之间的关系。研究表明随着比表面分维数的增加 ,煤储层兰氏体积减小 ,而兰氏压力增加 ,随着孔容分维数的增加兰氏体积减小。
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| 关 键 词： | 煤储层 等温吸附 孔隙 比表面 分形维数 |
| 文章编号： | 1008-8725(2004)07-0001-03 |
| 修稿时间： | 2004-04-12 |
Research on the fractal characteristics of pore of coal reservoirs tested with cryogenic nitrogen adsorption in the ordos basin |
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| TONG Hong_shu,HU Bao_lin. Research on the fractal characteristics of pore of coal reservoirs tested with cryogenic nitrogen adsorption in the ordos basin[J]. Coal Technology, 2004, 23(7): 1-3 |
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| Authors: | TONG Hong_shu HU Bao_lin |
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| Affiliation: | TONG Hong_shu~1,HU Bao_lin~2 |
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| Abstract: | Based on testing pore distribution of coal reservoirs by means of cryogenic nitrogen isothermal adsorption,the pore volume and the specific surface fractal dimension of the samples are calculated,and the relations between coal reservoir adsorptive capacity to methane and the pore fractal dimension are analyzed. The study indicates that with the Langmuir volume of coal reservoirs increases and the Langmuir pressure decreases,the specific surface fractal dimension increase.The Langmuir volume of coal reservoirs reduces as pore volume fractal dimension increases. |
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| Keywords: | coal reservoir l isotherm adsorption porosity fractal dimension |
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