This work is focused on the 3D simulation of cathodic protection (CP) systems for metallic deep
well casings immersed in stratified soil. The soil is considered as a multi-layered electrolyte with electric
conductivity, which varies from layer to layer. Given a CP system, the aim of the simulation is to predict
the level of protection against corrosion along the well casing. The simulation methodology is aimed at
simplifying the model design, especially for dealing with multi-layered electrolyte, and improving the
accuracy over existing traditional techniques, which entail a detailed and time consuming
representation in the model of the interfaces between different layers of the electrolyte. The effects of
different scenarios of electrolytes on the CP system are considered.
Keywords: CP, Cathodic Protection, Modeling, Multi-Layer soil, Well Casing, Boundary Element Method