大口径特殊工程钻孔套管事故原因及对策

Cause of Casing Failure in Special Engineering Borehole with Large Diameter and the Countermeasures

摘要:

大口径特殊工程钻孔近几年在煤矿安全生产中应用越来越广泛，而大口径特殊工程钻孔在施工中套管挤毁事故时有发生，就事故发生原因进行了分析和研究，并根据套管事故案例的共性问题提出了相应的技术措施。

Abstract:

The special engineering borehole with large diameter was applied more and more extensively in coal mine safety production in recent years, and casing collapsing frequently occurred in the construction. The paper analyzed and studied the accident causes and put forward the corresponding technical measures according to common problems of the casing failure cases.