抽油管壁磨损量检测方法  

Abrasion measurements in oil pipelines

作　　者：李路明[1] 黄松岭[1] 杨海青[1] 刘时风[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2002年第4期509-511,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目 ( 5 0 0 0 10 0 6)

摘　　要：在石油开采工业中 ,抽油管被大量使用。为了避免由于抽油管过度磨损造成的事故 ,有必要对抽油管壁磨损量进行检测。将计算机技术、机电控制技术、信号处理技术与漏磁检测技术结合起来 ,实现了抽油管壁磨损量的检测。探头采用双传感器差动的方式 ,避免了工作环境磁场对检测的影响。漏磁检测探头在抽油管内采用螺旋式轨迹扫查 ,能保证磨损缺陷不漏检。经过实验测试 ,此检测方法能有效地检出对抽油管正常工作有严重危害的管壁磨损 。Oil pipelines are widely used in oil exploration. The pipelines must be inspected for abrasion by the oil to avoid excessive wear accidents. A computer based technique was developed for abrasion inspection of oil pipelines by combining electro/mechanical controls, signal processing and magnetic flux leakage testing. The influence of external magnetic fields was eliminated by differential sensors. The magnetic flux leakage probe scans in a spiral along the pipeline to minimize missed abrasion defects. Experimental data shows that this method can detect abrasions in oil pipelines which are dangerous to normal work. The method can be widely applied in the oil exploration industry.

关 键 词：磨损量 磁通密度检测 探头扫查 抽油管 

分 类 号：TE933.8[石油与天然气工程—石油机械设备]