连续多根石油套管水压试验爆管事件原因调查说明,管子材质问题是低水压下爆管的原因之一,漏磁检测系统对管子严重超标折叠缺陷的漏检是导致爆管的直接因素。分析表明,漏磁检测方法对检测某些纵向折叠缺陷,具有一定的局限性,只有采取复合无损检测方法和严格的水压试验,并结合必要的管材冶金质量控制才能严把产品质量关。 A series of investigations on the causes of pipe explosion caused by hydrostatic test of oil casing shows that the problem of pipe material is one of the causes of pipe explosion under low water pressure. The leakage detection of the leakage defect due to the leakage test of the pipe is a direct result of the pipe explosion factor. The analysis shows that the method of magnetic flux leakage testing has some limitations on the detection of some longitudinal folding defects. Only by adopting composite non-destructive testing method and rigorous hydrostatic test can the product quality be strictly controlled in combination with the necessary quality control of the pipe metallurgy.