地面垂直采空区抽采钻井井口连接装置故障处理及改进

Trouble Shooting and Improvement of Wellhead for Surface Gob Well

本文针对地面垂直采空区抽采钻井井口连接装置初期设计不合理采动后易出现损坏现象,介绍了两种处理方法,同时提出了厚薄煤层两种钻井井口连接装置改进方式。

In view of the irrational design of wellhead in the early stage for surface gob well, which can be easily damaged after coal extraction, the paper introduces two handling methods. At the same time, two im- proved wellheads for both thick and thin coal seams are proposed.