煤矿安全2017，Vol.48Issue(6)：90-93,4.DOI:10.13347/j.cnki.mkaq.2017.06.024
非标螺旋钻杆在软煤中的钻进技术与装备
Application of Drilling Technology and Equipment in Soft Coal Based on Non-standard Spiral Drill Pipe
孙新胜 1王毅 1金新 1叶嗣喧1
作者信息
- 1. 中煤科工集团西安研究院有限公司,陕西西安710077
- 折叠
摘要
Abstract
For gas drainage holes in soft and outburst coal seams,there are three technical bottlenecks,firstly it is difficult to form a hole,secondly the probability of hole formation is low,thirdly there are many downhole accidents such as tools truck and gas gushing from the hole.Aiming at these three actual issues,through analyzing the powder discharge mechanism and the drilling technology of spiral drill pipes,as well as the field application of different types of non-standard large-bore spiral pipes with wide wing blade,it is summarized that the drilling technology and auxiliary equipment of non-standard spiral pipes are suitable for different soft coal seams so as to popularize and apply them.关键词
松软突出煤层/瓦斯抽采/钻进装备/螺旋钻杆/钻进技术Key words
soft and outburst coal seam/gas drainage/drilling equipment/spiral drill pipe/drilling technology分类
矿业与冶金引用本文复制引用
孙新胜,王毅,金新,叶嗣喧..非标螺旋钻杆在软煤中的钻进技术与装备[J].煤矿安全,2017,48(6):90-93,4.
