抽采钻孔封孔质量检测方法研究与应用

Research and Application of Drainage Hole Sealing Quality Testing Method

封孔质量是决定抽采钻孔抽采效果的重要因素。研究抽采钻孔漏气机制,可以为确定抽采钻孔漏气位置和封孔工艺改进提供理论依据。基于采用理论分析、数值计算和现场测试相结合的方法进行抽采钻孔漏气机制研究,合理判定抽采钻孔封孔质量与漏气位置。应用表明,该方法能够准确判定抽采钻孔的封孔质量和漏气位置。

The sealing quality is one of the important factors of influencing the gas drainage efficiency. The research of leakage mechanism in gas drainage hole can provide a theoretical basis for determining drainage hole leak position and sealing process improvement. Combined with the theoretical analysis,numerical calculation and field testing method,the leakage mechanism of gas drainage hole has been researched, the drainage hole sealing quality and leak position has been reasonably judged. Applications show that, the method can accurately determine the drainage hole sealing quality and leak position.