J55钢套管螺纹漏水的原因及对策

Reason Analyses and Countermeasure of J55 Casing Thread Leaking

针对J5 5钢套管出现螺纹连接处漏水现象 ,通过锰盐磷化和锌盐磷化接箍进行上卸扣试验分析 ,认为螺纹粘扣是造成螺纹连接处漏水的主要原因。从上扣扭矩、接箍磷化、螺纹脂、螺纹参数及螺纹表面质量几方面对影响粘扣的因素进行了详细分析 ,提出了合理的上扣扭矩量、优化的螺纹参数、优良的磷化工艺以及选择优质的螺纹脂 ,可从根本上解决套管接箍端螺纹漏水问题。

It considers that viscidity thread is the main reason that causes the water leakage on the connection of thread through analyzing screwing on and screwing out coupling test to manganese phosphate and zinc phosphate coupling faced to J55 casing appeared water leakage on the connection of thread.It analyses the thread on torque,coupling phosphate,thread compound,thread parameter and thread surface quality, etc,in detail and raises reasonable optimized thread parameter of thread on torque, excellent phosphate process and option of superior thread compound to solve the water leakage problem on the casing with coupling end thoroughly.