Development of novel integrated in-line inspection techniques for pipeline inspection

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This paper proposes a new, low cost, and high sensitivity smart pipeline inspection gauge (smart PIG) that integrates different in-line inspection (ILI) techniques to inspect the pipeline defects such as dents, metal loss or corrosions. The proposed ILI techniques include: (1) optical sensor (based on photoconductivity); and (2) bimorph sensor (based on piezoelectricity). Laboratory tests are conducted on various types of defects such as convexities (e.g., deposit corrosion) and metal losses (e.g., cavity corrosion) to demonstrate the validity of the proposed techniques. Furthermore, the conventional magnetic flux leakage (MFL) technique is developed to verify the effectiveness of the proposed ILI techniques. The test results show that the proposed ILI techniques can effectively identify the defect position. It is envisioned that the developed smart PIG has significant potential for real-time inspection of the long-buried pipeline. Copyright © 2020 SPIE.
Publisher
International society for optics and photonics
Issue Date
2020-11-09
Language
English
Citation

SPIE Future Sensing Technologies 2020, pp.115250C

ISSN
0277-786X
DOI
10.1117/12.2581420
URI
http://hdl.handle.net/10203/280134
Appears in Collection
CE-Conference Papers(학술회의논문)
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