Multiple Pig Signallers Installed on Subsea Pipelines

All pigs were fitted with NdFeB magnets such that effective triggering of the subsea signallers was achieved.

The signallers were installed at various locations and could be moved along/across to different lines as the project progressed, all settings were easily adjusted by the crew on the DSV prior to deployment by ROV at each junction.

A schematic is shown below for one phase showing the various platforms & line diameters that feed into the line and then to the terminal.

Some views here show the clarity of the display before the different pigs were launched and the ease of how the signallers can be deployed onto a pipeline even when the line is partially buried into the sea-bed.