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Phased Array interpretation – pressure vessel
Phased Array interpretation – pressure vessel
Dear Experts,
Following a phased array inspection of a desalter vessel we have discovered a band of mid-wall indications, this band of non-continuous defects are measured at a depth of approximately 15mm to 20mm from the external surface of the vessel .
There are also some others localised inclusions of approximately 1 to 5 mm Ø which are located approximately at 4 to 5 mm from the internal surface of the vessel. The same defects are present throughout the wall of the vessel.
My questions are :
Has anyone faced the same situation during the inspection of a desalter vessel and has an idea about the nature of these indications ?
Is that these defects can propagate and grow whilst the vessel is in service?
If someone has a good knowledge of this process, what are the others types of defects in addition to the corrosion that can occur on such a vessel when is in service for more than ten years ?
Thank you in advance for your help.
Best regards
- 1 Reply
Get a C scan in order to check its length x width, all indications are midwall and it is a band of certain area, normally lamination or inclusions are restricted in small portion , lots of factors to be considered for confirming it to be HIC or not, thats why i asked first check susceptibility
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