| 间接法测定煤层瓦斯含量计算公式校正的实验研究 |
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| 引用本文： | 雷红艳, 逄锦伦, 陈玉涛, 曹偈. 间接法测定煤层瓦斯含量计算公式校正的实验研究[J]. 矿业安全与环保, 2018, 45(4): 37-40. |
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| 作者姓名： | 雷红艳 逄锦伦 陈玉涛 曹偈 |
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| 作者单位： | 1.1. 瓦斯灾害监控与应急技术国家重点实验室, 重庆 400037 |
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| 基金项目： | 国家自然科学基金项目(51574280，51774319) |
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| 摘 要： | 采用HCA高压容量法瓦斯吸附装置，对7组不同变质程度的煤样，分别在20、30、40、50、60 ℃等5个温度条件下进行常压吸附瓦斯量和瓦斯吸附常数的测试，通过对测试数据进行分析研究，得出每升高单位温度下吸附瓦斯减小量与煤的变质程度的关系模型，进而对间接法测定煤层瓦斯含量计算公式进行校正，校正结果更符合煤样在高压状态下即将达到吸附饱和状态的相关理论。
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| 关 键 词： | 煤层瓦斯含量 吸附瓦斯量 常压吸附 温度 变质程度 |
| 收稿时间： | 2017-10-10 |
| 修稿时间： | 2018-07-03 |
Experimental Study on Calibration of Calculation Formula of Gas Content in Coal Seam by Indirect Method |
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| LEI Hongyan, PANG Jinlun, CHEN Yutao, CAO Jie. Experimental Study on Calibration of Calculation Formula of Gas Content in Coal Seam by Indirect Method[J]. Mining Safety & Environmental Protection, 2018, 45(4): 37-40. |
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| Authors: | LEI Hongyan PANG Jinlun CHEN Yutao CAO Jie |
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| Affiliation: | 1.1. State Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, China |
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| Abstract: | By using HCA high pressure capacity gas adsorption device, the gas adsorption capacity and gas adsorption constant of 7 groups of coal samples with different degree of metamorphism were tested in the temperature of 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃ respectively.Through the analysis and study of the test data, the relationship model between the decrease of gas adsorption and the degree of metamorphism of coal for every increase in temperature was obtained, and then the formula for calculating the gas content in coal seam by indirect method was calibrated. The correction result was more consistent with the theory that the adsorption saturation of coal sample was imminent at high pressure. |
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| Keywords: | coal seam gas content gas adsorption atmospheric adsorption temperature degree of metamorphism |
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