摘  要

钻杆是钻井设备中的重要部件，但经常因缺陷而发生失效事故，导致巨大的经济
损失，因此，研究现场堆放状态下钻杆的无损检测方法、研制钻杆检测装置具有重要的意义。本文首先分析了钻杆的结构特征、缺陷形式及其易发部位，提出了一种采用自驱式检测探头、配备检测漏磁检测方法，给出了钻杆漏磁检测系统的设计方案，对检测的运动方案、工作原理及系统布局的可行性进行了论证。
 
关键词：钻杆检测，机械设计，漏磁检测

Abstract

Drill pipe is an important component of the drilling equipment, but often due to defects and failure accidents occur, resulting in huge economic
Loss, therefore, the study site piled state under the drill pipe, drill pipe and non-destructive method for detecting device has important significance. This paper first analyses the structure characteristics, the drill pipe defects form and prone positions, put forward a kind of automatical testing probe, equipped with detection of magnetic flux leakage testing method, gives the design scheme of magnetic flux leakage testing system of drill pipe, the feasibility of detecting motion scheme, layout and working principle of the system are demonstrated.
Key Words:  mechanical design, drill pipe detection, magnetic flux leakage testing