Using Modeling to Interpret and Expand CP Survey Data
Robert A Adey, Cristina Peratta, and John Baynham, BEASY
A case study will be presented in which computer modeling is used to evaluate the data obtained from a survey of the structure. By further processing that data within the model, comprehensive visualisation is provided of the distribution of protection potentials across the full extent of all the structures in the model, together with clear representation of the consumption levels (current and projected) for each anode.
The owner of the asset is thereby able to secure considerable additional advantage from the survey, which they then feed back into their CP strategies and the specification of subsequent surveys.
General Consideration About Current Distribution And Potential Attenuation Based On Storage Tank Bottom Modeling Study
Jean Vittonato,TOTAL E&P CONGO, Robert A Adey, John Baynham, BEASY
In this investigation, two CP system configurations were applied to a storage tank bottom and studied with 3D modeling. The first variant incorporated an anodic grid system installed beneath the tank bottom and a membrane below that. The second variant had no membrane installed beneath the tank and the anodes were located around the periphery of the tank. The paper investigates the role of the resistivity of the sand cushion below the tank and the surrounding environment and draws conclusions valuable for the design of Tank Base CP systems.