| 煤层气解吸的温度效应 |
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| 引用本文： | 马东民, 张遂安, 王鹏刚, 蔺亚兵, 王晨. 煤层气解吸的温度效应[J]. 煤田地质与勘探, 2011, 39(1): 20-23. DOI: 10.3969/j.issn.1001-1986.2011.01.005 |
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| 作者姓名： | 马东民 张遂安 王鹏刚 蔺亚兵 王晨 |
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| 作者单位： | 1. 中国石油大学气体能源开发与利用教育部工程研究中心, 煤层气研究中心, 北京 102249; |
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| 基金项目： | 国家科技重大专项项目(2008ZX05040); 陕西省教育厅科学研究计划项目(2010JK684); 国家自然科学基金项目(40672105) |
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| 摘 要： | 为了探索温度对煤层气解吸效果的影响，通过对沁水南部寺河煤矿3号煤的吸附/解吸实验，经过数学分析，获得该煤层气吸附/解吸的数学式与等量吸附热表达式。分析认为：随着储层温度升高，饱和吸附量减小；解吸过程滞后于吸附作用的原因主要是非物理吸附常数 c值作用，随着储层温度增高，c值增大；降压解吸伴随吸热(温降)，同时阻碍了持续解吸过程。通过提高储层温度来促进解吸过程，在理论上可行，工程中应该受到重视。
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| 关 键 词： | 温度 煤层气 解吸 机制 |
| 收稿时间： | 2010-04-09 |
Mechanism of coalbed methane desorption at different temperatures |
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| MA Dongmin, ZHANG Suian, WANG Penggang, LIN Yabing, WANG Chen. Mechanism of coalbed methane desorption at different temperatures[J]. COAL GEOLOGY & EXPLORATION, 2011, 39(1): 20-23. DOI: 10.3969/j.issn.1001-1986.2011.01.005 |
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| Authors: | MA Dongmin ZHANG Suian WANG Penggang LIN Yabing WANG Chen |
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| Affiliation: | 1. Gas Energy Development Research Center of the Ministry of Education, CBM Research Center, China University of Petroleum, Beijing 102249, China;2. Xi'an University of Science and Technology, Xi'an 710054, China;3. Sichuan Province Coalfield Surveying and Mapping Engineering Institute, Chengdu 610072, China |
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| Abstract: | In order to investigate the influence of temperature on CBM desorptoin effect,by using adsorption and desorption experiment of coal seam 3 in Sihe mine at 6 temperatures,the adsorption and desorption formula of the coal seam was obtained,and isosteric adsorbed heat was calculated.It is considered in the analysis that the saturated adsorption amount decreased with the increased temperature of CBM reservoir;the main reason for delayed desorption process compared with adsorption was the action of non-physical ... |
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| Keywords: | temperature coalbed methane(CBM) desorption mechanism |
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