内蒙古某煤矿投料井钻成井施工工艺及控制要点

Construction Technology and Key Points of Control for Feeding Well Drilling and Completion

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。

Abstract:

Because of the large diameter of mine feeding well, grading reaming is adopted. The wear resistant pipe of feeding 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 case of a feeding well in Inner Mongolia, this paper summarizes the drilling completion construction technology of feeding well and the key points of control.