Ultrasonic detection of corrosions in the internal walls of oil drill rods is described including the principle, method and technology. Experimental results show that it is feasible and effective.

• 介绍石油钻杆内壁腐蚀缺陷超声检测的原理、方法及工艺,给出了实验结果。结果表明,该方法检测钻杆内壁腐蚀缺陷是行之有效的。