抽油杆涡流检测装置及应用

Sucker rod default eddy current detector and its application

抽油杆涡流检测装置利用涡流探伤原理 ,对抽油杆杆体表面的横向裂纹等缺陷进行在线检测 ,避免或减少抽油杆在井下工作中发生断裂事故 ,对保证抽油机井正常生产起着积极的作用。现文简要介绍该装置的工作原理及特点。现场应用表明 ,该装置适合在井口特殊环境下 。

Eddy current detection mechanism used in sucker rod default detector is introduced in this paper.The equipment can test defaults such as horizontal cracks on sucker rod surface on line.The application of the test result can be used to prevent or decrease sucker rod failure in pumping wells.Therefor,it has better effects to guarantee pumping well production.This paper describes the working principle and characteristics of the detector.Field application shows that the detector is applicable on well heads.The detecting process has no harm to the sucker rod surface.