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03202 The use of Dedicated Simulation Software for the Design and Understanding of the Cathodic Protection of Underground Pipeline Networks under various Interference Conditions

A simulation software for the cathodic protection (CP) of underground pipeline networks is presented.  In this paper, the software will be applied to two different cases. The first concerns the design of the cathodic protection of a 55 km pipeline section. The second is the evaluation of an existing pipeline network in the north-west of The Netherlands.

Product Number: 51300-03202-SG
ISBN: 03202 2003 CP
Author: Leslie Bortels
Publication Date: 2006
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A simulation software for the cathodic protection (CP) of underground pipeline networks is presented. This software uses an advanced model for the coating quality, taking into account the local soil resistivity, holiday ratio, average holiday size, coating thickness and coating resistance. The model considers the ohmic voltage drop in the pipes and integrates aboveground structures like rail bars, sub-stations, electric trains or trams and overhead wires. As a result, the model calculates both the “on” and “off” pipe-to-soil potentials along a pipe, the axial currents flowing through the pipes as well as the radial current densities leaving or entering the pipe walls. In this paper, the software will be applied to two different cases. The first one concerns the design of the cathodic protection of a 55 km pipeline section. The second one is the evaluation of an existing pipeline network in the north-west of The Netherlands. Keywords: simulation software, cathodic protection, pipeline networks, interference, “off” potential, “on” potential.

A simulation software for the cathodic protection (CP) of underground pipeline networks is presented. This software uses an advanced model for the coating quality, taking into account the local soil resistivity, holiday ratio, average holiday size, coating thickness and coating resistance. The model considers the ohmic voltage drop in the pipes and integrates aboveground structures like rail bars, sub-stations, electric trains or trams and overhead wires. As a result, the model calculates both the “on” and “off” pipe-to-soil potentials along a pipe, the axial currents flowing through the pipes as well as the radial current densities leaving or entering the pipe walls. In this paper, the software will be applied to two different cases. The first one concerns the design of the cathodic protection of a 55 km pipeline section. The second one is the evaluation of an existing pipeline network in the north-west of The Netherlands. Keywords: simulation software, cathodic protection, pipeline networks, interference, “off” potential, “on” potential.

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