Article Article
Guided Wave Testing of an Immersed Gas Pipeline

This paper presents a case study of the guided wave testing of a gas transmission pipeline of an approximate length of 1 km (0.62 mi), which is not piggable. Guided waves were used to screen the full length of the line and all indications were followed by a range of local tests. The findings were compared with structural integrity assessments, thus informing decisions for repair. This study shows the important and reliable role of guided wave testing applied in good practice.

Alleyne, D.N. and P. Cawley, “The Interaction of Lamb Waves with Defects,” IEEE Transactions on UFFC, Vol. 39, 1992, pp. 381–397. Alleyne, D.N. and P. Cawley, “The Excitation of Lamb Waves in Pipes Using Dry Coupled Piezoelectric Transducers,” Journal of NDE, Vol. 15, 1996, pp. 11–20. Alleyne, D.N. and P. Cawley, “Long Range Propagation of Lamb Waves in Chemical Plant Pipework,” Materials Evaluation, Vol. 55, 1997, pp. 504–508. Alleyne, D.N., M.J.S. Lowe and P. Cawley, “The Reflection of Guided Waves from Circumferential Notches in Pipes,” Journal of Applied Mechanics, Vol. 65, 1998, pp. 635–641. Alleyne, D.N., B. Pavlakovic, M.J.S. Lowe and P. Cawley, “Rapid Long-Range Inspection of Chemical Plant Pipework Using Guided Waves,” Insight, Vol. 43, 2001, pp. 93–101. ASME, ASME B31G: Manual for Determining Remaining Strength of Corroded Pipelines, New York, American Society of Mechanical Engineers, 1991. Cawley, P., D.N. Alleyne and C.W. Chan, “Inspection of Pipes,” WO 96/12951, priority date 20 October 1994. Cawley, P., M.J.S. Lowe, F. Simonetti, C. Chevalier and A.G. Roosenbrand, “The Variation of the Reflection Coefficient of Extensional Guided Waves from Defects as a Function of Defect Depth, Axial Extent, Circumferential Extent and Frequency,” Journal of Mechanical Engineering Science, Vol. 216, 2002, pp. 1131–1143. Cawley, P., M.J.S. Lowe, D.N. Alleyne, B. Pavlakovic and P. Wilcox, “Practical Long Range Guided Wave Inspection — Applications to Pipes and Rail,” Materials Evaluation, Vol. 61, 2003, pp. 66–74. Demma, A., P. Cawley, M.J.S. Lowe and A.G. Roosenbrand, “The Reflection of the Fundamental Torsional Mode from Cracks and Notches in Pipes,” Journal of the Acoustical Society of America, Vol. 114, 2003, pp. 611–625. Demma, A., P. Cawley, M.J.S. Lowe, A.G. Roosenbrand and B. Pavlakovic, “The Reflection of Guided Waves from Notches in Pipes: A Guide for Interpreting Corrosion Measurements,” NDT&E International, Vol. 37, 2004, pp. 167–180. Demma, A., D.N. Alleyne and B.N. Pavlakovic, “Guided Waves: Offshore Applications,” Proceedings of the CONAEND Conference, Brazilian NDT Society, Sao Paulo, Brazil, July 23–26, 2006. Ditri, J.J., “Utilization of Guided Elastic Waves for the Characterization of Circumferential Cracks in Hollow Cylinders,” Journal of the Acoustical Society of America, Vol. 96, 1994, pp. 3769–3775. Kwun, H. and A.E. Holt, “Feasibility of Under- Lagging Corrosion Detection in Steel Pipe Using the Magnetostrictive Sensor Technique,” NDT&E International, Vol. 28, 1995, pp. 211–214. Lowe, M.J.S., D.N. Alleyne and P. Cawley, “The Mode Conversion of a Guided Wave by a Part-Circumferential Notch in a Pipe,” Journal of Applied Mechanics, Vol. 65, 1998, pp. 649–656. Mohr, W. and P. Höller, “On Inspection of Thin Walled Tubes for Transverse and Longitudinal Flaws by Guided Ultrasonic Waves,” IEEE Transactions on Sonics and Ultrasonics, Vol. SU- 23, 1976, pp. 369–374. Mudge, P., “Field Application of the Teletest Long Range Ultrasonic Testing Technique,” Insight, Vol. 43, 2001, pp. 74–77. Pavlakovic, B., Wavemaker G3: Procedure Based Inspector Training Manual, Guided Ultrasonics, Ltd., Nottingham, England, 2007. Rose, J.L., J.J. Ditri, A. Pilarski, K. Rajana and F.T. Carr, “A Guided Wave Inspection Technique for Nuclear Steam Generator Tubing,” NDT&E International, Vol. 27, 1994, pp. 307–330. Rose, J.L., L. Zhang, M. Avioli and P.J. Mudge, “A Natural Focusing Low Frequency Guided Wave Experiment for the Detection of Defects Beyond Elbows,” ASME Journal of Pressure Vessel Technology, Vol. 127, 2005, pp. 310–316. Simonetti, F. and P. Cawley, “On the Nature of Shear Horizontal Wave Propagation in Elastic Plates Coated with Viscoelastic Materials,” Proceedings of the Royal Society of London: Mathematical, Physical and Engineering Sciences, Vol. 460, 2004, pp. 2197–2221. Silk, M.G. and K.F. Bainton, “The Propagation in Metal Tubing of Ultrasonic Wave Modes Equivalent to Lamb Waves,” Ultrasonics, Vol. 17, 1979, pp. 11–19.
Usage Shares
Total Views
336 Page Views
Total Shares
0 Tweets
0 PDF Downloads
0 Facebook Shares
Total Usage