ABSTRACT

The over-long well casing through the seawater, sea mud and rock, which is in severe corrosion environment and cathodic protection is valid protection method. The numerical model of cathodic protection for the complex condition, which is in the uneven environment, is more important and difficult for optimal design. The paper built a cathodic protection finite-element

modeling

for well-casing by simulative experiment, boundary conditions discussion and analysis, in order to provide an important reference for the optimal design of cathodic protection for well-casing through seawater, sea mud and rock.

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