This paper describes a nonhomogeneous gamma process-based model to characterize the growth of the depth of corrosion defect on oil and gas pipelines. All the parameters in the growth model are assumed to be uncertain; the probabilistic characteristics of these parameters are evaluated using the hierarchical Bayesian methodology by incorporating the defect information reported by the multiple in-line inspections (ILIs) as well as the prior knowledge about these parameters. The bias and random measurement error associated with the ILI tools as well as the correlation between the measurement errors associated with different ILI tools are taken into account in the analysis. The application of the model is illustrated using an example involving real ILI data on a pipeline that is currently in service. The results suggest that the model in general can predict the growth of corrosion defects reasonably well. The proposed model can be used to facilitate the development and application of reliability-based pipeline corrosion management.
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August 2014
Research-Article
Time-Dependent Corrosion Growth Modeling Using Multiple In-Line Inspection Data
Shenwei Zhang,
Shenwei Zhang
1
Department of Civil and
Environmental Engineering,
e-mail: szhan85@ uwo.ca
Environmental Engineering,
Western University
,London, ON N6A 5B9
, Canada
e-mail: szhan85@ uwo.ca
1Corresponding author.
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Wenxing Zhou,
Wenxing Zhou
Assistant Professor
Department of Civil and
Environmental Engineering,
e-mail: wzhou@eng.uwo.ca
Department of Civil and
Environmental Engineering,
Western University
,London, ON N6A 5B9
, Canada
e-mail: wzhou@eng.uwo.ca
Search for other works by this author on:
Mohammad Al-Amin,
Mohammad Al-Amin
Engineer-in-Training
e-mail: mohammad_al-amin@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: mohammad_al-amin@transcanada.com
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Shahani Kariyawasam,
Shahani Kariyawasam
Principal Engineer
e-mail: shahani_kariyawasam@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: shahani_kariyawasam@transcanada.com
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Hong Wang
Hong Wang
Risk Engineer
e-mail: hong_wang@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: hong_wang@transcanada.com
Search for other works by this author on:
Shenwei Zhang
Department of Civil and
Environmental Engineering,
e-mail: szhan85@ uwo.ca
Environmental Engineering,
Western University
,London, ON N6A 5B9
, Canada
e-mail: szhan85@ uwo.ca
Wenxing Zhou
Assistant Professor
Department of Civil and
Environmental Engineering,
e-mail: wzhou@eng.uwo.ca
Department of Civil and
Environmental Engineering,
Western University
,London, ON N6A 5B9
, Canada
e-mail: wzhou@eng.uwo.ca
Mohammad Al-Amin
Engineer-in-Training
e-mail: mohammad_al-amin@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: mohammad_al-amin@transcanada.com
Shahani Kariyawasam
Principal Engineer
e-mail: shahani_kariyawasam@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: shahani_kariyawasam@transcanada.com
Hong Wang
Risk Engineer
e-mail: hong_wang@transcanada.com
TransCanada Corporation
,450-1st Street SW
,Calgary, AB T2P 5H1
, Canada
e-mail: hong_wang@transcanada.com
1Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received November 26, 2012; final manuscript received February 5, 2014; published online April 16, 2014. Assoc. Editor: Roman Motriuk.
J. Pressure Vessel Technol. Aug 2014, 136(4): 041202 (7 pages)
Published Online: April 16, 2014
Article history
Received:
November 26, 2012
Revision Received:
February 5, 2014
Citation
Zhang, S., Zhou, W., Al-Amin, M., Kariyawasam, S., and Wang, H. (April 16, 2014). "Time-Dependent Corrosion Growth Modeling Using Multiple In-Line Inspection Data." ASME. J. Pressure Vessel Technol. August 2014; 136(4): 041202. https://doi.org/10.1115/1.4026798
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