瓦斯抽放对煤层注水效果的影响初探  

Primary Study on the Effect of Gas Drainage on Coal Seam Water Infusion

作　　者：孟筠青[1,2] 聂百胜[1,2] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《矿业研究与开发》2009年第6期82-84,共3页Mining Research and Development

基　　金：国家自然科学基金项目(50874110);国家"十一五"科技支撑计划(2006BAK03B0303);国家重点基础研究发展计划(973计划)课题(2005cb221502);教育部新世纪优秀人才支持计划(NCET-07-0799);北京市科技新星计划(2006A81);霍英东高等院校青年教师基金资助项目(111053)

摘　　要：就瓦斯抽放对煤层注水效果的影响进行了探讨,从瓦斯抽放可增加煤层渗透性和减小水驱瓦斯阻力的角度,分析了瓦斯抽放对煤层注水的增注机理。相关实验结果表明,瓦斯抽放之后,再用瓦斯抽放孔进行煤层注水,可较大幅度的提高注水效果,而且还能减少打孔工作量,是一种高效的注水方法。The influence of gas drainage to coal seam water infusion is discussed in this paper, based on the viewpoint that the permeability of coal seam can be improved and the resistance to water infusion can be cut down as gas drainage, the mechanism of enhancing effect of coal seam water injection due to gas drain- age was researched. The result of field experiment indicated that after gas drainage if the same drainage holes are used for coal seam water infusion the effect of water infusion can be improved greatly, and drilling the amount of drilling can be reduced, so it is a kind of effective water infusion method.

关 键 词：煤层注水 瓦斯抽放 渗透性 机理 

分 类 号：TD322.1[矿业工程—矿井建设]