Tube Tech Comment
Mike Watson, Technical and Managing Director: “Whilst it was disappointing that the plant could not spare the time for us to unblock the remaining tubes, this particular project represents yet another world first. I am confident of this, because I am sure no other company can claim to have drilled vertically and continuously – without reconnecting and disconnecting extensions – over a 25 metre length through 14mm i.d. blocked tubes. What is more, we achieved all of this within a headroom of just 2 metres – a very confined, restricted space indeed.
This project was a classic case of how important clear and accurate communication is. We have since used interpreters on our conference calls to avoid any such ambiguity happening again. Our experience on this occasion vindicates our policy of taking several alternative cleaning systems to these international jobs. If we hadn’t been so well equipped, the discovery that the top header of the V.C.F.E. could not be removed would have been a very severe setback.”
T/O Coordinator: “We planned the clean of the Texas Tower carefully to minimise downtime, but we did not expect the number of tubes that were found to be constricted or blocked when the exchanger was opened. Once support services had finished modifying the scaffolding and supplies to Tube Tech’s requirements, cleaning progress was very good. It was unfortunate that the right information about the top of the exchanger was lost in translation, but Tube Tech showed great resourcefulness in adapting to the situation. Our VCFE was cleaned and inspected to production standard without overrunning the shutdown period.”
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