same type of plug may be used. The client requested Jee to complete up-front technical assurance to ensure that using the same plug as in 2010 would be appropriate, taking into account any lessons learnt from the previous execution. The solution Jee conducted a review of the 2010 operation and plug tool design to identify what further testing or clarications should be sought during the engineering of any future operation using the same tool. The scope of the assurance was to: Develop a system prole (pipeline boremap) Review historic isolation tool vendor project documents including piggability review, pipe stress analysis calculations, and FAT and operational procedures Complete verication notes to record comments on the project documents with recommendations to be included in future ve

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