A new area corrosion monitor for remote pipelines
08 October 2018
Emerson is introducing the Roxar FSM Log 48 Area Corrosion Monitor, a new pipeline integrity management system that provides remote, continuous online corrosion and erosion monitoring, enabling operators to track localized corrosion and ensure cost-effective pipeline health even in challenging environments.
The Roxar FSM Log 48 continuously monitors corrosion in remote areas using WLAN and cellular data transfer protocols and built-in solar power options that reduce maintenance and personnel requirements. Armed with comprehensive, real-time pipeline health information, operators can make better decisions about when and where to conduct pig runs, integrity digs and hydrostatic pressure tests.
The system is specifically designed to work for both uncovered and buried pipelines and is easily installed on bottom pipe sections where water collection is most likely. It can be retrofitted to existing uncovered or buried pipelines and several units can be located over a pipeline.
The Roxar FSM Log 48 uses the non-intrusive field signature method, in which an electric current is fed through the monitored length of pipeline to generate an electric field. The initial measurement sequence measures the voltage drop between pairs of sensing pins installed on the external pipe wall. Later measurements are compared to the field signature, where a uniform increase in voltage drops between all pin pairs indicates generalized corrosion, and a local increase in the values indicates localized corrosion.