TY - JOUR
T1 - A review of corrosion under insulation
T2 - a critical issue in the oil and gas industry
AU - Cao, Qing
AU - Pojtanabuntoeng, Thunyaluk
AU - Esmaily, Marco
AU - Thomas, Sebastian
AU - Brameld, Michael
AU - Amer, Ayman
AU - Birbilis, Nick
N1 - Funding Information:
Acknowledgments: The support from Woodside Energy and Curtin Corrosion Centre is gratefully acknowledged. QC thanks Kate Narin, Mariano Iannuzzi, and Peter Bock for proofreading and Yu (Louis) Long for image editing. ME also thanks the Swedish Research Council and Helge Ax: son Johnsons Stiftelse (Sweden) for the support. AA thanks the Research & Development Center, Oil and Gas Network Integrity Division, Advanced Sensors Team of Saudi Aramco for their support in publishing this paper.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/3/25
Y1 - 2022/3/25
N2 - Corrosion under insulation (CUI) is defined as any form of external corrosion that occurs on the underlying metal beneath insulated equipment, due to water ingress through the insulation layer. This type of corrosion is frequently observed in oil and gas production, where insulated piping is prevalent, and has historically remained a predominant materials integrity issue. The prediction and direct visualisation of CUI are challenging tasks because of the coverage of the insulation layer(s) and any external jacketing or cladding. Several factors, including the local/ambient envi-ronment, system design, and the piping installation process, can influence how CUI initiates and propagates. In this review, CUI background, CUI monitoring, and CUI mitigation strategies are discussed.
AB - Corrosion under insulation (CUI) is defined as any form of external corrosion that occurs on the underlying metal beneath insulated equipment, due to water ingress through the insulation layer. This type of corrosion is frequently observed in oil and gas production, where insulated piping is prevalent, and has historically remained a predominant materials integrity issue. The prediction and direct visualisation of CUI are challenging tasks because of the coverage of the insulation layer(s) and any external jacketing or cladding. Several factors, including the local/ambient envi-ronment, system design, and the piping installation process, can influence how CUI initiates and propagates. In this review, CUI background, CUI monitoring, and CUI mitigation strategies are discussed.
KW - coating
KW - corrosion
KW - CUI
KW - insulation
KW - oil and gas
UR - http://www.scopus.com/inward/record.url?scp=85127095740&partnerID=8YFLogxK
U2 - 10.3390/met12040561
DO - 10.3390/met12040561
M3 - Review Article
AN - SCOPUS:85127095740
SN - 2075-4701
VL - 12
JO - Metals
JF - Metals
IS - 4
M1 - 561
ER -