Design of an electrical sensor for scale deposition detection using Carbon Nanotubes

  • Hesham O. Helal

Student thesis: Master's Thesis


Oil and gas industry is suffering from the problem of scale deposition. It causes many problems in the oil fields as it affects the well production and performance. It can reduce the effectiveness of the equipment and the pipelines. Some applications have been introduced to detect the scale deposition and prevent its occurrence, thus saving the equipment from damage. Most of these techniques were not very effective. In this master thesis, a new Carbon Nanotubes (CNTs) based stress sensor scale detection has been developed. After conducting a study on the previous work done in the field of using CNTs as stress sensors we showed the motivations behind choosing it as a material and presented a description of the developed stress sensor. Based on our designed sensor, a simulation model and experimental results are shown. An experimental setup simulating the scale deposition was then introduced and tested with the use of metal strain gauges for calibration and then used for CNT. Next the results from the CNT sensor and Constantan film sensor experiments were presented and discussed. Finally, we presented our conclusions and discussed some possible future work.
Date of Award2015
Original languageAmerican English
SupervisorKhalid AlHammadi (Supervisor)


  • Applied sciences
  • Carbon nanotubes
  • Comsol multiphysics
  • Strain sensor
  • Electrical engineering
  • 0544:Electrical engineering

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