关键词: 高位钻孔, 定向长钻孔, 瓦斯治理, 上隅角, 采空区

Abstract: Using ZYWL-6000DS directional drilling rig in Shandong Tangkou mine construction roof high-direction long-distance drilling, the maximum hole depth reached 555 meters. According to the theory of "O-ring", the optimum height of the directional drilling is obtained by comparing and analyzing the data and effect of the high-distance drilling with different height. It is proved that the drainage efficiency of directional long distance drilling is higher and the economic benefit is better than that of drilling and drilling. With the mining face to advance, high directional long drilling to reduce the goaf and the upper corner of the gas play a role. Directional drilling technology has the value of further application in the Tangkou mining area, which can improve the efficiency of gas control and exploration and promote the safe production of coal mines.