Defect characterisation from limited view pipeline radiography

Haith, Misty I.; Huthwaite, Peter; Lowe, M. J. S.

doi:10.1016/j.ndteint.2016.12.007

Cited by 12 publications

(8 citation statements)

References 5 publications

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“…173 Efforts are also being spent to refine the image processing portion so that less components and less shots are needed, which will help reduce the difficulty of subsea radiographic measurements. 174,175 Inline inspection Intelligent/intelligence pigging. Over time, debris and precipitates such as wax, hydrates, and asphaltenes from the production fluid build up inside the pipeline.…”

Section: Radiographymentioning

confidence: 99%

Inspection and monitoring systems subsea pipelines: A review paper

El-Borgi

Patil

et al. 2019

Structural Health Monitoring

141

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One of the largest movers of the world economy is the oil and gas industry. The industry generates billions of barrels of oil to match more than half the world’s energy demands. Production of energy products at such a massive scale is supported by the equally massive oil and gas infrastructure sprawling around the globe. Especially characteristic of the industry are vast networks of pipelines that traverse tens of thousands of miles of land and sea to carry oil and gas from the deepest parts of the earth to faraway destinations. With such lengths come increased chances for damage, which can have disastrous consequences owing to the hazardous substances typically carried by pipelines. Subsea pipelines in particular face increased risk due to the typically harsher environments, the difficulty of accessing deepwater pipelines, and the possibility of sea currents spreading leaked oil across a wide area. The opportunity for research and engineering to overcome the challenge of subsea inspection and monitoring is tremendous and the progress in this area is continuously generating exciting new developments that may have far reaching benefits far outside of subsea pipeline inspection and monitoring. Thus, this review covers the most often used subsea inspection and monitoring technologies as well as their most recent developments and future trends.

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Section: Radiographymentioning

confidence: 99%

Inspection and monitoring systems subsea pipelines: A review paper

El-Borgi

Patil

et al. 2019

Structural Health Monitoring

141

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“…Both classical and modern instruments are used for flood monitoring. Easily detects the leakage and defect Still in research process to apply for BCPs [32] Radiography Easily distinguishes deep layers of BCPs Can be the cause of damage for humans and sea animals [33] Fiber optics Precise results with less loss of data Installation is tedious, and permanent installation is required for it [34] From Table 8, it is observed that the output readings from classical instruments like acoustic emissions can be interrupted on irregular surface applications. Ground penetrating radar (GPR) and electrical field signature can provide moderate results with their continuous attachment to the observation units.…”

Section: Floodsmentioning

confidence: 99%

“…Further, external surface load such as traffic, heavy equipment, and superstructure built on the BCPs also impact its integrity [16][17][18][19][20][21][22][23][24][25]. Likewise, flood [26][27][28][29][30][31][32][33][34], blasting [35][36][37] and earthquakes [38][39][40][41][42][43][44] also affect the safe operations of BCPs.…”

Section: Introductionmentioning

confidence: 99%

Identification of Factors Influencing Sustainability of Buried Continuous Pipelines

Akram

Zülfikar

2020

Sustainability

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Threat to the sustainability of buried continuous pipelines (BCPs) can be associated with different factors such as corrosion, natural hazards, and third-party influences. In the past, these factors have been discussed independently by various researchers. Despite these studies, there is still space for a comprehensive review report to be performed in this domain. The purpose of this article is to manage, classify, and describe the literature work done in this sphere. Firstly, the screening of various factors based on their damage criteria has been carried out. An environmental analysis is performed to review the impact of different parameters that can influence the sustainability of BCPs. Further, a technical review on primary factors has been done to examine and measure the causes, damages, mitigation, and inspection techniques. In the last stage, review based decision has been performed. Results of the current study shows that research contribution for corrosion and earthquake factors are in an advanced stage, followed by flood and external surface loads, that are still in progress. However, temperature variations and blast factors are in a premature phase and need broad inspection and research support.

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“…An outline of the processing steps is provided below. The initial steps are similar to those applied in [ 26 ]. (i) Subtraction of baseline image from indication image to obtain a contrast map.…”

Section: Detectability Evaluationmentioning

confidence: 99%

Optimized multi-shot imaging inspection design

2018

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The inspection of complex-shaped components, such as those enabled by additive manufacturing, is a major challenge in industrial quality assurance. A frequently adopted approach to volumetric non-destructive evaluation is X-ray computed tomography, but this has major drawbacks. Two-dimensional radiography can overcome some of these problems, but does not generally provide an inspection that is as capable. Moreover, designing a detailed inspection for a complex-shaped component is a labour-intensive task, requiring significant expert input. In response, a computational framework for optimizing the data acquisition for an image-based inspection modality has been devised. The initial objective is to advance the capabilities of radiography, but the algorithm is, in principle, also applicable to alternative types of imaging. The algorithm exploits available prior information about the inspection and simulations of the inspection modality to allow the determination of the optimal inspection configuration, including specifically component poses with respect to the imaging system. As an intermediate output, spatial maps of inspection performance are computed, for understanding spatially varying limits of detection. Key areas of innovation concern the defect detectability evaluation for arbitrarily complex indications and the creation of an application-specific optimization algorithm. Initial trials of the algorithm are presented, with good results.

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Defect characterisation from limited view pipeline radiography

Cited by 12 publications

References 5 publications

Inspection and monitoring systems subsea pipelines: A review paper

Inspection and monitoring systems subsea pipelines: A review paper

Identification of Factors Influencing Sustainability of Buried Continuous Pipelines

Optimized multi-shot imaging inspection design

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