Study on Oil and Gas Pipeline Leakage Real-Time Inspection System Based on Distributed Optical Fiber

Abstract:

A new distributed optical fiber pipeline leakage detection technology based on Mach-Zehnder optical fiber interferometer theory is put forward. When using this technology, an optical fiber cable is laid along the pipeline. Noise from leaking point on the pipeline can be acquired by the optical fiber vibration sensor which was composed of three single mode optical fibers, thus, leakage occurred on the pipeline can be detected in real time. The detection principle and system construction are explained and in-site testing data is analyzed. With principle analysis and experimental results, it is demonstrated that the detection system’s measuring sensitivity and location accuracy for detecting leakage are high when adopting this technology.

• Periodical: Key Engineering Materials (Volumes 381-382)
• Pages: 447-450
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.381-382.447
• Online since: June 2008
• Authors: Y. Zhou, Shi Jiu Jin, H. Feng, Z.M. Zeng, Z.G. Qu
• Keywords: Distributed Fiber Optic Sensor, Leak Detection, Mach-Zehnder Interferometer, Pipeline

References

[1] YANG Jie and WANG Gui-zeng: Control and Instruments in Chemical Industry, Vol. 31 (2004) No. 3, pp.1-5.

[2] ZHOU Shi-dong, WU Zhi-min and WU Ming: Petroleum Engineering Construction, Vol. 29 (2003) No. 3, pp.6-10.

[3] Wang Hui-wen: The Technology and Application of Optical Fiber Sensing (National Defence Industry Press, Beijing 2001).

[4] Zhou Yan, Jin Shi-jiu and Zhang Jun-chao: Journal of Optoelectronics. Laser, Vol. 16 (2005) No. 8, pp.1933-938.