Quote:
Originally Posted by BlackArcher101
Not entirely sure in this case, but I imagine closing the line off to test procedures on using the remaining system and see what it could handle (compare to modelling) and test the procedure on restarting the line. In reality probably helped a lot to prepare them for this unplanned break. Website just says the following:
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I imagine they were testing to see if the in-line valves, scour/drain valves and air valves etc. were all operating properly so that they can properly shut down sections of the line when actually required for the planned condition assessment.
Sometimes the line valves can seize up if they haven’t been operated in a while and this can cause a whole other set of problems. They may also be actuated valves rather than manually operated so need to test the actuators are working etc.