论文部分内容阅读
石油钻杆裂纹型缺陷是石油钻杆服役中的主要缺陷类型.钻杆的适用性评价和安全使用需要进行裂纹型缺陷的探伤和评价.本文开发研究的超声波探伤方法、理论和装置是为了石油钻杆裂纹型缺陷的探伤和评价.经探伤评价表明,钻杆裂纹型缺陷高度的探伤评价方法误差小于1mm.同时,这种超声波探伤评价方法是一种在油田现场使用的有效钻杆裂纹型缺陷探伤方法和技术,可为油田钻杆裂纹型缺陷检测和适用性评价提供良好的技术支持.
The crack type of oil drill pipe is the main type of defect in the service of oil drill pipe.The evaluation and safe use of drill pipe require the flaw detection and evaluation of crack defects.The ultrasonic flaw detection methods, theories and devices developed in this paper are for petroleum Flaw detection and evaluation of cracked defects of drill pipe The flaw evaluation shows that the error of flaw detection method of crack height is less than 1mm.At the same time, this method of ultrasonic flaw detection is an effective drill pipe crack Defective flaw detection methods and techniques can provide good technical support for the detection and suitability assessment of the cracked defects of the drill pipe in the oilfield.