超大直径工程井钻井垂直度控制工艺技术

Drilling Verticality Control Technology of Super-large Diameter Project Well

摘要:

介绍了机械钻井法施工矿山竖井中，直径8.3 m、深度286 m条件下钻井施工井筒垂直度控制工艺技术，主要包括增加粗径钻具重力控制和安设导向器控制钻井垂直度以及钻井垂直度的测量等关键工艺技术措施。

Abstract:

The paper introduced the shaft verticality control technology for shaft of mine (in the diameter of 8.3 m and depth of 286 m) constructed with mechanical drilling method, such as the key technical measures of increasing the weight of large diameter drilling tool, installing the drilling director and measuring the shaft verticality.