Corrosivity monitoring system using RFID-based sensors

Lydia Lawand; Oleg Shiryayev; Khalil B. Alhandawi; Nader Vahdati; Paul Rostron

doi:10.1117/12.2218813

Abstract

In the oil and gas industry, pipeline integrity is a serious concern due to the consequences of pipeline failure. External corrosion was identified as one of the main causes of pipeline failures worldwide. A solution that addresses the issue of detecting and quantifying corrosivity of environment for application to existing exposed pipelines has been developed. The proposed sensor consists of an electric circuit and a sensing array connected to the circuit. The sensing array is an assembly of strips made of a metal identical to that of the pipe, having the same length and width, but different thicknesses. The sensing array is exposed to the same environment as the pipe. As corrosion propagates in the metal strips of the array, it corrodes the metal until it finally breaks the metal strip apart resulting in a discontinuity in the circuit. The sensor circuit is energized using electromagnetic field, and its function is to indicate which strips in the array are fully corroded. Visual indication is provided to the operator via LEDs. The proposed sensor can be installed on existing pipelines without altering the pipe structure or disturbing the production process. It is passive and has low maintenance requirements. Circuit design was validated through lab experiments. Results obtained from experiments were consistent with simulation results.

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Citation Download Citation

Lydia Lawand, Lydia Lawand, Oleg Shiryayev, Oleg Shiryayev, Khalil B. Alhandawi, Khalil B. Alhandawi, Nader Vahdati, Nader Vahdati, Paul Rostron, Paul Rostron, } "Corrosivity monitoring system using RFID-based sensors", Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98031F (20 April 2016); doi: 10.1117/12.2218813; https://doi.org/10.1117/12.2218813

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