摘要
煤矿投料井直径大,采用分级扩孔;耐磨管刚度大,对井眼的垂直度要求高,同时其质量大,对起重设备、器具要求高,施工中容易发生重大的安全或质量事故。本文通过多项工程实践,以内蒙古某投料井为例,总结了投料井钻成井施工工艺及控制要点。
Because of the large diameter of mine feeding well, grading reaming is adopted. The wear resistant pipe of feed- ing well has high stiffness and heavy weight, which has high requirements on borehole verticality, lifting equipments and appliances, serious safety or quality accidents often occur in the construction. Based on a series of engineering practices, with the ease of a feeding well in Inner Mongolia, this paper summarizes the drilling completion construction technology of feeding well and the key points of control.
出处
《探矿工程（岩土钻掘工程）》
2017年第1期57-60,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
投料井
钻成井
耐磨管
钻孔垂直度
feeding well
well drilling and completion
well verticality
