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A novel optical fiber sensor is being developed to monitor the internal corrosion processes in natural gas transmission pipelines.
A novel optical fiber sensor is being developed to monitor the internal corrosion processes in the natural gas transmission pipelines. Water droplet detection and ionic strength monitoring have been experimentally demonstrated by using the proposed sensor. This fiber optic sensor provides a multifunctional platform for monitoring several major processes involved with internal corrosion, including water dropwise condensation, dissolution of corrosive gases, and corrosion product formation on the steel surface, as well as changes in environmental parameters such as temperature and stress in steel pipes. Furthermore, a distributed sensor interrogation system combining several spatially resolved demodulation schemes is proposed to determine the location of incipient corrosion events and produce distributed information about the potential for on-set of corrosion along the path of the optical fiber sensor.
Key words: corrosion, optical fiber sensor, water droplet, ionic strength, multi-parameter and spatially resolved sensing
This work presents a combined modeling and experimental methodology to determine the onset of droplet entrainment from the bottom and deposition at the top of the line.
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This work applied the Wet Gas-Internal Corrosion Direct Assessment (WG-ICDA) standard to assess the severity of internal corrosion of 2 segments along a pipeline used to transport wet gas from a gas mine.
An oil transmission pipeline in the Eagle Ford area was being treated with 150ppm of active biocide based on a five percent water hold up but good control of the microbial population was not being maintained.