Abstract
Oil and gas are still largely transported by long-distance pipelines. In this study, we aimed to examine the impact of the high-voltage DC transmission grounding electrode on long-distance pipelines' cathodic protection system nearby. The writer built the interference model of the DC transmission grounding electrode on the pipeline using COMSOL Multiphysics based on the parameters of the actual project and considering the cathodic protection system within and then tested the model using experimental data. By simulating and calculating the model under different conditions of grounding electrode inlet current, grounding electrode-pipe distance, soil conductivity, and pipeline coating surface resistance, we obtained the current density distribution in the pipeline and the cathodic protection potential distribution law. The outcome presents a visual representation of the corrosion occurring in adjacent pipes as a result of DC grounding electrodes operating in monopole mode.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
