摘要
在介绍赵庄矿井煤层赋存概况的基础上,简述了软煤层施工瓦斯抽放钻孔现状,通过对赵庄矿不同钻具打钻方案的比较,指出50 mm×1 000 mm的浅槽螺旋钻杆具有较好的打钻效果。
Based on introducing the general situation of the ocurrenee of coal seam ot Zhaozhuang Mine, mls paper briefly expounds the present situation of the hole drilling for the gas drainage of the weak coal-bed, and through the comparison of the drilling schemes with different drilling tools in Zhaozhuang Mine, points out that the shallow slot spiral drill pipe of 50 mm×1 000 mm possess better drilling effectiveness.
出处
《科技情报开发与经济》
2009年第13期211-213,共3页
Sci-Tech Information Development & Economy
关键词
钻具
松软煤层
打钻方案
drilling tool
weak coal-bed
drilling scheme
