石油钻铤螺纹联接失效的机理分析

The Failure Mechanism Analysis for Collar Connection Thread

摘要:

总结和讨论了钻铤螺纹联接失效的类型和失效机理，指出了现场施工中可能存在的潜在因素。还明确指出了FH型、IF型接头之所以要淘汰的原因，建议国内各油田尽力推广使用数字型NC接头。

Abstract:

The paper summarizes and discusses the failure types and failure mechanism of collar connection thread in detail. The possible factors that exist in oilfield site and may affect the connection thread have been pointed out. At the same time, the paper shows the causes that FH thread and IF thread should be abandoned.The number NC thread connection is been advised to use in all oilfields in China.