采动区地面井煤层气开发井位布置技术研究现状及发展趋势

    Research Status and Development Tendency of Well Location Layout Technology of CBM Development in Mining Area Surface Wells

    • 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。

       

      Abstract: With the high strength of coal mining, the underground gas drainage is not sufficient to solve the problem of the gas. The research of surface borehole drilling extraction has been becoming a hot spot in domestic. Through sorting out and analyzing the related surface 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 current mining area surface borehole drilling technology. The paper points that utilizing the relation among stress fields,seepage field and fractures field, considering the system research of surface drilling control range of different mines and different geological condition will provide theoretical support for stope strike separation layout of surface drilling in mining area.

       

    /

    返回文章
    返回