Ultrasonic Monitoring of Corrosion with Permanently Installed Sensors (PIMS)

Cegla, Frederic

doi:10.1007/978-3-319-69233-3_2

Cited by 9 publications

(10 citation statements)

References 2 publications

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“…The waves are bounced back by the external surface, inner surface, and geometric irregularities, which are received by the transducer. The tool measures the time interval between the arrivals of reflected echoes from inner and outer surfaces to calculate the wall thickness [36,37,38]. As shown in Figure 5 [39], the wall thickness information combined with the stand-off signal can differentiate the internal and external mass loss/flaw along the pipe.…”

Section: Conventional Corrosion Sensorsmentioning

confidence: 99%

Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review

Wright

Lü

Devkota

et al. 2019

Sensors

108

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Corrosion has been a great concern in the oil and natural gas industry costing billions of dollars annually in the U.S. The ability to monitor corrosion online before structural integrity is compromised can have a significant impact on preventing catastrophic events resulting from corrosion. This article critically reviews conventional corrosion sensors and emerging sensor technologies in terms of sensing principles, sensor designs, advantages, and limitations. Conventional corrosion sensors encompass corrosion coupons, electrical resistance probes, electrochemical sensors, ultrasonic testing sensors, magnetic flux leakage sensors, electromagnetic sensors, and in-line inspection tools. Emerging sensor technologies highlight optical fiber sensors (point, quasi-distributed, distributed) and passive wireless sensors such as passive radio-frequency identification sensors and surface acoustic wave sensors. Emerging sensors show great potential in continuous real-time in-situ monitoring of oil and natural gas infrastructure. Distributed chemical sensing is emphasized based on recent studies as a promising method to detect early corrosion onset and monitor corrosive environments for corrosion mitigation management. Additionally, challenges are discussed including durability and stability in extreme and harsh conditions such as high temperature high pressure in subsurface wellbores.

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Section: Conventional Corrosion Sensorsmentioning

confidence: 99%

Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review

Wright

Lü

Devkota

et al. 2019

Sensors

108

View full text Add to dashboard Cite

show abstract

“…Non-intrusive methods such as ultrasonic [ 15 , 16 , 17 ], guided waves [ 18 ], surface acoustic waves [ 19 ], optical fibers [ 20 ], and capacitance measurement [ 21 ] are installed on the component for corrosion monitoring. Surface acoustic waves [ 19 ], optical fibers [ 20 ], and capacitance based sensors [ 21 ] can only detect surface corrosion and are not capable of detecting buried and internal corrosion defects.…”

Section: Introductionmentioning

confidence: 99%

Reliability Improvement of Magnetic Corrosion Monitor for Long-Term Applications

Wasif

Tokhi

Rudlin

et al. 2023

Sensors

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Electromagnetic techniques are widely employed for corrosion detection, and their performance for inspection of corrosion is well established. However, limited work is carried out on the development and reliability of smart corrosion monitoring devices for tracking internal or buried thickness loss due to corrosion remotely. A novel smart magnetic corrosion transducer is developed for long-term monitoring of thickness loss due to corrosion at critical locations. The reliability of the transducer is enhanced by using a dissimilar active redundancy approach. The improved corrosion monitor has been tested in the ambient environment for seven months to evaluate the stability against environmental factors and degradation. The monitor is found to show great sensitivity to detect defects due to corrosion. Detection of anomalous patterns in the time series data received from the monitors is accomplished by using Pearson’s correlation coefficient. The critical component of the monitor is identified at the end of the test. Research findings reveal that, compared to the existing corrosion monitoring techniques in the industry, the detection and isolation of faulty sensor features introduced in this study can contribute to reliable monitoring of thickness loss due to corrosion in ferromagnetic structures over an extended period of time.

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“…The in-line inspection tools are expensive and require special pipe configurations [4]. They can only be deployed 2 of 19 in long pipes with a certain pressure and no sharp bends, valves, or branches [5][6][7]. Despite the extensive inspections, in-line tools are, therefore, run periodically after 5-7 years [8].…”

Section: Introductionmentioning

confidence: 99%

“…Surface acoustic wave (SAW) sensors and guided wave permanently installed sensors are sensitive to corrosion defects, but they are highly affected by environmental parameters such as temperature [17,18]. Ultrasonic thickness gauges are commonly used permanently installed sensors [19]. They can detect buried corrosion defects, and the confidence level of UT tools is around 95% [11].…”

Section: Introductionmentioning

confidence: 99%

Development of Permanently Installed Magnetic Eddy Current Sensor for Corrosion Monitoring of Ferromagnetic Pipelines

et al. 2022

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Permanently installed sensors are a cost-effective solution for corrosion monitoring due to their advantages, such as less human interference and continuous data acquisition. Some of the most widely used permanently installed corrosion sensors are ultrasonic thickness (UT) gauges. However, UT sensors are limited by the need for coupling agents between pipe surfaces and sensors. The magnetic eddy current (MEC) method, on the other hand, does not require couplant and can be used over insulations. With the development of powerful rare earth magnets, MEC sensors with low power consumption are possible, and there is the prospect of using them as permanently installed sensors. A novel wireless magnetic eddy current sensor has been designed and optimized using finite element simulation. Sensitivity studies of the sensors reveal that the excitation frequency is a critical parameter for the detection of corrosion defects. An in-depth explanation of the relationship between the sensitivity of the sensor and the excitation frequency is presented in this paper. The results of an accelerated corrosion test, conducted to simulate the service environment of the sensor, are also discussed. It was observed that the sensor signals are very sensitive to corrosion defects and show no subtle differences due to temperature and humidity changes.

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Ultrasonic Monitoring of Corrosion with Permanently Installed Sensors (PIMS)

Cited by 9 publications

References 2 publications

Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review

Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review

Reliability Improvement of Magnetic Corrosion Monitor for Long-Term Applications

Development of Permanently Installed Magnetic Eddy Current Sensor for Corrosion Monitoring of Ferromagnetic Pipelines

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