Automatic inspection of oil well tubing transverse defects and longitudinal defects is a key means to guarantee the quality of repaired oil well tubing and reduce accidents in oil extraction.
油管是采油工程中的重要构件之一，油管纵、横向缺陷自动检测是保证修复油管质量、减少采油作业事故的关键手段。
Automatic ultrasonic testing, manual ultrasonic testing and radiographic testing techniques were used on the inspection of embedded defects.
采用全自动超声波检测、手动超声波检测以及射线检测方法对预制缺陷进行了检测。
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