I have recently started studying encapsulated and solid corrosion inhibitors for downhole tubing. I would like to know which methods can be used to evaluate them in terms of release behavior, inhibition efficiency, and their capacity to prevent the corrosion process. I have found some papers that use UV–Vis spectroscopy to monitor the release over time. Could you please share more information or experiences about this? I would greatly appreciate it."
To evaluate encapsulated and solid corrosion inhibitors, use laboratory tests such as electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, weight loss measurements, and salt spray tests, along with microscopic analysis (SEM/EDS) to assess release behavior, protective film formation, and corrosion resistance over time.
Best,
Davide
Hi Davide, thank you for your answer.
I was wondering if you could recommend a paper that explains the methodology in more detail. Specifically, I am not sure how the solid inhibitor should be introduced into the electrochemical cell so that it can release during the evaluation. I have read some works where the inhibitor is mixed with the electrolyte using an Ultra-Turrax or ultrasound, but in my case, I am interested in evaluating the inhibitor in its solid state. Could you please provide some guidance or references?
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