Architecture of the leak detection system is presented, and the leak detection method based on dynamic pressure and wavelet analysis is studied in this paper. The feature of dynamic pressure which is generated by the leakage of pipeline is analyzed. The dynamic pressure signal of pipeline internal pressure is acquired by dynamic pressure sensor when leakage occurs, and the signal is analyzed by wavelet analysis method to detect the singularity, and the singularity is used to recognize and locate the leak. From the comparison of analysis results between dynamic pressure and static pressure, in order to improve the sensitivity and stability of the leak detection system, a polling rule between dynamic and static pressure is implemented. Field tests of the leak detection system are presented and analyzed. The results of the field tests demonstrate that the leak detection method based on dynamic pressure and wavelet analysis can detect pipeline leak rapidly and locate the leak precisely. This leak detection system has been applied in 5000 km pipeline or so.
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2010 8th International Pipeline Conference
September 27–October 1, 2010
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4422-9
PROCEEDINGS PAPER
Leak Detection Method for Long Pipeline Based on Dynamic Pressure and Wavelet Analysis
Bin Xu,
Bin Xu
PetroChina Pipeline Company, Langfang, Hebei, China
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Likun Wang,
Likun Wang
PetroChina Pipeline Company, Langfang, Hebei, China
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Hongchao Wang,
Hongchao Wang
PetroChina Pipeline Company, Langfang, Hebei, China
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Min Xiong,
Min Xiong
PetroChina Pipeline Company, Langfang, Hebei, China
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Dongliang Yu,
Dongliang Yu
PetroChina Pipeline Company, Langfang, Hebei, China
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Dongjie Tan
Dongjie Tan
PetroChina Pipeline Company, Langfang, Hebei, China
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Bin Xu
PetroChina Pipeline Company, Langfang, Hebei, China
Likun Wang
PetroChina Pipeline Company, Langfang, Hebei, China
Hongchao Wang
PetroChina Pipeline Company, Langfang, Hebei, China
Min Xiong
PetroChina Pipeline Company, Langfang, Hebei, China
Dongliang Yu
PetroChina Pipeline Company, Langfang, Hebei, China
Dongjie Tan
PetroChina Pipeline Company, Langfang, Hebei, China
Paper No:
IPC2010-31056, pp. 445-451; 7 pages
Published Online:
April 4, 2011
Citation
Xu, B, Wang, L, Wang, H, Xiong, M, Yu, D, & Tan, D. "Leak Detection Method for Long Pipeline Based on Dynamic Pressure and Wavelet Analysis." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 3. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 445-451. ASME. https://doi.org/10.1115/IPC2010-31056
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