取样过程中风流对煤样瓦斯解吸规律影响的探讨分析

发布时间：2018-02-12 01:16

  本文关键词： 煤样瓦斯 取样 影响因素 风流 试验 解吸规律　出处：《中国煤炭》2016年07期 　论文类型：期刊论文

【摘要】：为考察取样过程中风流对煤样瓦斯解吸规律的影响,理论分析并实测了取样时钻机进风流参数,并对影响煤样解析规律的因素进行了理论分析。通过试验研究风流吹扫与自然暴露情况下煤样瓦斯解吸规律,验证了取样过程中风流对煤样瓦斯解吸规律的影响可以忽略,为煤层瓦斯含量损失量推算提供理论支撑。
[Abstract]:In order to investigate the influence of air flow on gas desorption of coal sample during sampling, the parameters of air flow in drilling rig during sampling were analyzed and measured theoretically. The factors affecting the analytical law of coal sample are analyzed theoretically. The desorption law of coal sample gas under the condition of air flow purging and natural exposure is studied experimentally, and the influence of air flow on the law of coal sample gas desorption is proved to be negligible during the sampling process. It provides theoretical support for calculating the loss of gas content in coal seam.
【作者单位】： 瓦斯灾害监控与应急技术国家重点实验室;中煤科工集团重庆研究院有限公司;
【分类号】：TD712.3
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本文编号：1504453