the pipeline is recieving a constant dosing rate of Corrosion inhibitor , the production team are requiring to reduce the flow pressure , is there any necessity to change the CI dosing rate ?
There is no need to remove the probes , the data logger interface is sufficient to get reading , and the output will be generally a ratio of resistance and the corrosion rate
Thank you for your reply
The others photos was taken under the annular plate after removal of the concrete ,it can confirm the corrosion of the old internal annular plate
I agree about the illnes of the repair method done over the internal annular plate ( fillet welded with the shell).
I...
The crude oil storage tank suffer from external corrosion ( heavy corrosion and even a holes ) in the chime plate, some portion suffer from distortion ( until the toe of the shell to bottom weld )
the internal annular plate is not corrded since it was repaired by an internal annular plate...
