摘要
利用现场巷道的仰角坡度,根据负压与水重力相互平衡的原理,布置钻孔的排水管路,使抽采钻孔内的水能够自动排出,又不影响钻孔内的负压,保证瓦斯的正常抽采。此项工艺的应用,成功实现了定向钻机出水孔的瓦斯抽采,保证了出水钻孔瓦斯抽采效果不受排水的影响。
By using the dip angle of roadway,according to the principle of mutual balance of negative pressure and water gravity,the drainage pipeline of the borehole is arranged,so that the water in the borehole can be discharged automatically,the negative pressure in the borehole is not affected,and ensures the normal gas extraction. The application of this technology,the gas extraction by the effluent borehole of directional drilling rig was implemented successfully,and the effect of gas extraction by the effluent borehole was not affected by drainage.
出处
《陕西煤炭》
2017年第4期131-132,115,共3页
Shaanxi Coal
关键词
定向钻机
出水孔
抽瓦斯
排水
directional drilling rig
water outlet
gas drainage
drainage
