| 封孔等待时间对瓦斯压力快速测定的影响 |
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| 引用本文： | 崔正中,蒋承林.封孔等待时间对瓦斯压力快速测定的影响[J].煤炭技术,2012,31(4):108-111. |
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| 作者姓名： | 崔正中 蒋承林 |
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| 作者单位： | 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州,221008 |
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| 摘 要： | 煤层瓦斯压力的测定除了与煤层的原始瓦斯压力、煤层的透气性大小和围岩等自然因素有关外,还与封孔效率、封孔工艺及封孔质量等人为因素有关。文章研究了钻孔形成后到钻孔密封生效这段时间的长短对瓦斯压力快速测定的影响,用有限差分法和FORTRAN对测压钻孔瓦斯流动方程进行数值计算,得出封孔等待时间的长短对快速测压的影响。
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| 关 键 词： | 瓦斯压力 等待时间 封孔 |
Influence of Waiting Time for Hole-Sealing on Quick Measurement of Gas Pressure |
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| CUI Zheng-zhong
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JIANG Cheng-lin.Influence of Waiting Time for Hole-Sealing on Quick Measurement of Gas Pressure[J].Coal Technology,2012,31(4):108-111. |
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| Authors: | CUI Zheng-zhong JIANG Cheng-lin |
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| Affiliation: | (School of Safety Engineering,China University of Mining and Technology,Xuzhou 221008,China) |
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| Abstract: | In situ measurement of the gas pressure is not only concern with the natural factors,such as original gas pressure and gas permeability of the coal seam,but also with the human factors,such as the time,the proficiency and the quality of the hole-sealing.This essay focuses on the influence on the quick measurement of the gas pressure between the formation of the hole and the effective hole-sealing. |
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| Keywords: | gas pressure waiting time hole-sealing |
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