Remote Monitoring Survey

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Remote monitoring is becoming an increasingly more accepted way of gathering data from test stations. Not only because the value of having continuous data often exceeds that of performing spot-wise measurements in time, but also because the cost of collecting data manually is getting higher. Still, regulations require annual surveys to document the safe operation of pipeline CP systems.

Product Number: 51323-19260-SG

Author: Andreas Junker Olesen, Lars Vendelbo Nielsen

Publication Date: 2023

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Today, modern remote monitoring systems have the capability of measuring a variety of cathodic protection performance parameters. These include transformer rectifier parameters, pipeline potentials (on and instant-off), line currents, coating impedance of entire pipeline sections, coupon current densities, corrosion rate measurements, isolation at casings or flanges, and more. With this data readily available to an operator it is possible to continuously monitor the CP operation, and this can be used to document compliance to regulators. With enough data available, it may even be possible to lower the frequency of, or even replace manual surveys. Ideally, provide the basis for the best possible use of field personnel, namely where data highlights a need for further investigations. This paper illustrates a remote monitoring system that may call for a revision of today’s annual survey requirements, illustrated via field measurements and examples.