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51315-6144-Development of Corrosion Sensor Technology for Buried Piping

Picture for Development of Corrosion Sensor Technology for Buried Piping
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Product Number: 51315-6144-SG
ISBN: 6144 2015 CP
Author: Todd Mintz
Publication Date: 2015
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Degradation of buried piping is a large concern for numerous industries including nuclear oil and gas waste water etc. Current condition assessment is an important part of the life cycle management of aging pipelines and includes assessment of the external surface indirect inspection direct examination and post-assessment. Measurement of soil parameters can help determine highest risk location where corrosion may be occurring. For measuring corrosion rates in soils electrical resistance probes linear polarization resistance probes and corrosion coupons are commonly employed. However these methods present several drawbacks in addition to the fact that they are all single parameter measurements which limits the ability to illustrate the overall corrosion process occurring in the soil. To overcome these issues Southwest Research Institute developed an embedded corrosion sensor technology with chloride concentration pH and corrosion current probes for corrosion monitoring of buried pipeline structures which meets the inspection needs of the nuclear and oil & gas industries. This paper presents the results of the novel sensor exposed to engineering soils containing various amounts of chlorides covering a wide range of pH.
Degradation of buried piping is a large concern for numerous industries including nuclear oil and gas waste water etc. Current condition assessment is an important part of the life cycle management of aging pipelines and includes assessment of the external surface indirect inspection direct examination and post-assessment. Measurement of soil parameters can help determine highest risk location where corrosion may be occurring. For measuring corrosion rates in soils electrical resistance probes linear polarization resistance probes and corrosion coupons are commonly employed. However these methods present several drawbacks in addition to the fact that they are all single parameter measurements which limits the ability to illustrate the overall corrosion process occurring in the soil. To overcome these issues Southwest Research Institute developed an embedded corrosion sensor technology with chloride concentration pH and corrosion current probes for corrosion monitoring of buried pipeline structures which meets the inspection needs of the nuclear and oil & gas industries. This paper presents the results of the novel sensor exposed to engineering soils containing various amounts of chlorides covering a wide range of pH.
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