Analyzing the Corrosion of "Hai Yang Shi You 931" Jack-Up Drilling Unit

Hong Wang; Xu Zhi

doi:10.4028/www.scientific.net/AMR.936.1112

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 936Analyzing the Corrosion of "Hai Yang Shi You 931"...

Analyzing the Corrosion of "Hai Yang Shi You 931" Jack-Up Drilling Unit

Abstract:

Severe corrosion was found on structures and spud leg of "Hai Yang Shi You 931" jack-up drilling unit according to the data of inspection. Some analysis and corrective action was required for Cathodic Protection system. The reason was concluded according to the environmental condition, service life, coating surface area, coating breakdown area, protection surface area and chemical test of anode etc. The electrochemical reaction was rapid suppressed and lost its due utility with the anode was covered by "Sacrifice" product and marine growth. Near the waterline, the oxygen strong bad battery effect was easy to form, and the chance and degree of corrosion occurrence was increased on spud leg.

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Periodical:

Advanced Materials Research (Volume 936)

Pages:

1112-1115

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.936.1112

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Online since:

June 2014

Authors:

Hong Wang*, Xu Zhi

Keywords:

Anode, Cathodic Protection, Corrosion, Jack-Up

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