摘要
随着煤矿的高强度开采,井下抽采已不足以解决瓦斯问题,地面钻井抽采煤层气的研究正成为国内的研究的热点。通过对国内采动区地面钻井相关资料的整理分析,阐明了采动区地面钻井抽采卸压瓦斯机理,明确当前采动区地面钻井布井技术研究现状。指出利用应力场、渗流场、裂隙场耦合关系,考虑不同矿区、不同地质条件下对地面钻井控制范围进行系统研究,将为采动区地面钻井在采场走向间距布置提供理论支撑。
With the high strength of coat mining, the underground gas drainage is not sufficient to solve the problem of the gas. The re- search of surface borehole drilling extraction has been beconling a hot spot in domestic. Through sorting out and analyzing the related surf＇ace borehole drilling material of domestic mining area, the paper demonstrates the mechanism of surface borehole drilling extraction pressure released gas of the mining area, pointes out the research situation of cmTent mining area surface borehole drilling technology. The paper points that utilizing the relation among stress fields,seepage field and fraetures field, considering the system research of sur- fitce drilling control range of diffb^nt mines and different geological condition will provide theoretical support for stope strike separation layout of surface drilling in mining area.
出处
《煤矿安全》
CAS
北大核心
2013年第1期60-63,共4页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2011CB201203-02)
关键词
采动区
地面钻井
井位布置
煤层气
研究现状
发展趋势
mining area
surface drilling
well location layout
coal bed methane
research status
development tendency
