针对采油井油管丝扣漏失的原因做了简要分析,指出了油管丝扣漏失的不可避免性。并结合作业区实例,着重介绍了利用封隔器治理丝扣漏失油井的原理及效果,提出了一种在不更换油管的情况下恢复油井正常生产、延长油井免修期的思路。 A brief analysis is made on the causes of the leakage of oil well pipe threading, and the unavoidability of the leakage of the oil pipe threading is pointed out. Combining with the example of operation area, the principle and effect of using spool pipe to drain lost oil well are introduced emphatically. A new idea of ​​recovering well normal production and prolonging oil well repair period without changing oil pipe is put forward.