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API 653 - Pitting corrosion in the critical zone near adjacent plate weld seam

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Gmni

Petroleum
Joined
Jun 19, 2014
Messages
1
Location
NL
Hello,

i have an issue with a through hole in the bottom plate that is located just near the adjacent bottom plate weld seam and it's also in the critical zone. I'm i able to install a tombstone patch plate that overlaps the weld seam or a full plate replacement it's in order?

2. Also i have a major corroded area on the adjacent plate within the critical zone, and the patch plate exceeds the 24" maximum lenght. Because of this a full plate replacement is necessary?

I also attached a photo of the issue.

hole_xpetg2.jpg


Thank you
 
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