Table 2.

The maintenance scheduler set of maintenance actions.

Actions	Descriptions	Comments
Do nothing	No mitigation is done	The corrosion proceeds
		Corrosion inhibitor is added from the inlet of the pipeline
Batch corrosion inhibitor	A chemical that adsorbs onto the metal surface and reacts with it to form a protective film	Corrosion rate drop is based on the inhibitor efficiency Effective only within its lifetime
Internal coating	An artificial coating that isolates the pipe from the corrosive environment and prevents water from reaching the pipe surface	No corrosion propagation during its lifetime
Cleaning pigging	A gadget that effectively cleans up liquids, corrosive solids and debris	No corrosion propagation during its lifetime
Replacement	Replace the corroded segment with a new one	Renew corrosive environment No more corrosion defects