石油钻杆表面裂纹检测技术  

Oil Drill Pipe Surface Crack Detection Technology

作　　者：邱辉 李亚光 Qiu Hui;Li Yaguang(Beijing Yizong Measurement &Control Technology Co.,Ltd.,Beijing 100055)

机构地区：[1]北京仪综测业科技发展有限公司,北京市100055

出　　处：《仪器仪表标准化与计量》2018年第5期22-25,共4页Instrument Standardization & Metrology

摘　　要：石油钻杆表面裂纹是钻杆在使用过程中的主要缺陷形式,这种缺陷有可能严重影响钻杆在使用过程中的安全性,所以必须要采用合适的方法、测量的原理和评价方法对其进行安全评估,在本文中就是研究了石油钻杆中表面裂纹缺陷检测的超声波测量方法,同时细致阐述了所采用的合适的测量方法,采用表面波的传播特性测量钻杆表面的裂纹深度和宽度,利用声弹性系数和传播过程中的速度差反应出裂纹的特性,采用此检测方法对钻杆的裂纹缺陷深度的评价误差在1mm之内,同时介绍了裂纹的评价方法,为超声波在石油钻杆裂纹检测中提供了一种良好的技术支持。Oil drill pipe surface crack is the main defects in the process of oil drill pipe in use, this kind of defect may seriously affect the drill pipe in the process of using security, so must use appropriate methods, the principle of measurement and evaluation method for safety assessment, in this paper is to study the ultrasonic measurement of surface crack defects detection in oil drill pipe method, At the same time, detailed expounds the suitable measurement method is adopted, Oil drill pipe are measured with surface wave propagation on the surface of the crack depth and width, using the acoustic elasticity coefficient and the propagation of sound velocity difference reflects the characteristics of the crack, Adopting this method on the depth of drill pipe crack defects of the evaluation error within 1 mm, At the same time introduces the evaluation method of crack, For ultrasonic crack detection in the oil drill pipe provides a good technical support.

关 键 词：石油钻杆 安全评估 超声波检测 声弹性系数 

分 类 号：TE921.2[石油与天然气工程—石油机械设备]