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Choke Failure/Collapse

2010-12-09

For well flowlines,if choke collapses there will be an overpressure downstream the choke.I would like to know how many choke failure we have to consider at a time (may be one/two) and which standard refers regarding choke collapse requirement.

Only one.  But, you need a back up for that one.  We usually install a choke and a monitor (a second choke) if the well can supply more pressure than the downstream can with stand.

the monitor doesn't have to be a choke (a globe valve) it can be a fail close valve like a gate or ball valve with it's own control loop.


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