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UT tools are used for IP of pipelines, why and how this technique is not advisable for pipelines greater than 10 years service?

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Question added by Shaik Ali , Inspection Engineer , TOTAL
Date Posted: 2016/10/19
wassim omar
by wassim omar , QA & QC Engineer , Pharaonic Petroleum Company "PHPC"

Because that old pipes whcih in survice for long time suffers form internal and external pitting and general corrosion which difuse and scatter the UT beam.