提高顺层钻孔瓦斯抽放效率技术措施研究

Study on the Technical Measures for Improving the Gas Drainage Efficiency of the Bedding Borehole

瓦斯抽放是防止煤层瓦斯涌出的重要技术手段,但在实际煤矿瓦斯抽放过程中受施工技术及条件限制,瓦斯抽采效率低,严重制约着后期采掘工作面安全生产。针对这一技术难题,通过技术研究,提出了提高顺层钻孔瓦斯抽放效率的技术措施,并在1211工作面瓦斯抽放中得以应用,实践证明取得了显著成效。

Gas drainage is an important technical means to prevent gas emission from coal seam,but in the actual process of coal mine gas drainage,restricted by construction technology and conditions,the gas extraction efficiency is low,seriously restricting the safe and stable production of the later mining.In order to solve this technical problem,Lu’an Group,after technical research,puts forward the technology for improving bedding drilling efficiency of gas drainage,which has been applied in 1211 working face gas drainage,and has achieved a remarkable success.