On-Line Monitoring to Detect Third-Party Damage on Underground Natural Gas Pipelines Using Accelerometer

Abstract:

Even though an excavation is not under the direct control of the utility operators, it is the main cause of third-party damage on the underground natural gas pipelines. Since the damage due to third-party excavation may lead to horrible consequences, preventative techniques that can reduce the third-party damage are needed. The purpose of this paper is to introduce an on-line monitoring system using accelerometer to detect a propagating acoustic pressure pulse that is produced from the third-party damage. Also, in order to verify this system, the corresponding field tests were performed considering many third-party damage sources(breaker, hammer drilling, etc.) and signal transmission ratio of each source. From the tests, signals developed by the third-party damage sources were successfully detected with the digital filter, which can distinguish external noises at the distance of 13km. Therefore, it is expected that the system can be used as a useful tool for the third-party damage monitoring of underground natural gas pipelines

• Periodical: Solid State Phenomena (Volume 110)
• Pages: 123-132
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.110.123
• Online since: March 2006
• Authors: Jae Young Nam, S.H. Choi, Jae Boong Choi, Young Jin Kim
• Keywords: Acoustic Pressure Pulse, Natural Gas Pipelines, On-Line Monitoring System, Signal Transmission Ratio, Third-Party Damage

References

[1] K. Leewis, and T. M. Shires, Managing Third Party Damage, International Conference on Advances in Welding Technology, (1999).

[2] S.H. Cho et al., Third-Party Damage Monitoring Technique Using Vibration Signal(I), The Korean Institute of Gas, (2000).

[3] G. L. Burkhardt et al., Realtime Monitoring of Pipelines for Third-Party Contact.

[4] Y. Hosokawa et al., Installation of an On-line Monitoring System for Detecting Third-party Damage on Transmission Pipelines, Proceedings of the 1998 International Gas Research Conference，(1998).

[5] Y. Hosokawa et al., On-Line Monitoring System for Detecting Third-Party Damage on Cathodically Protected Pipelines, International Pipeline Technology Conference，(2000).

[6] J. Caldwell, One-call on the Move Again, Editorial in Pipeline and Gas Industry, (1997).

[7] Acoustics & Vibration. Leak and Shock Acoustic Detection System, Technical Report.

[8] R. Francini et al., Real-Time Monitoring to Detect Third Party Damage, Gas Research Institute, Chicago, Illinois, (1999).

[9] L. E. Kinsler et al., Fundamentals of acoustics, (John Wiley & Sons, Inc) (1980).

[10] Sakuntala Mahapatra et al., Measurement, 26, pp.221-227, (1999).

[11] J. S. Bendat, Principles and Applications of Random Noise Theory, Wiley, New York, (1977).