任亮

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:土木工程系

电子邮箱:renliang@dlut.edu.cn

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Pipeline corrosion and leakage monitoring based on the distributed optical fiber sensing technology

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论文类型:期刊论文

发表时间:2018-07-01

发表刊物:MEASUREMENT

收录刊物:SCIE、EI

卷号:122

页面范围:57-65

ISSN号:0263-2241

关键字:Pipeline; Optical fiber sensor; Corrosion; Leakage; Monitoring

摘要:Pipeline is an important structure to transport oil and gas through long distances. However, pipeline also suffers from many threats especially corrosion and leakage. Therefore, it is necessary to conduct pipeline safety monitoring. With the advantage of high precision in distributed strain measurement, the optical frequency domain reflectometry (OFDR) technique is more suitable for pipeline monitoring. In this paper, a new application of the OFDR technique is introduced to monitor both corrosion and leakage. In order to verify this method, simulation tests of corrosion and leakage were conducted. In the corrosion test, several optical fiber sensors were bonded to the pipe surface with the same interval, forming a sensor array. Based on the sensor array, a hoop strain nephogram was created to show the corrosion level and corrosion location. In the leakage test, the results indicated that pipeline leakage can be detected by the distributed optical fiber sensor (DOFS). All the test results demonstrate that it is possible to monitor pipeline corrosion and leakage based on the hoop strain theory and the DOFS.