Approximation of Infrastructure Effects on Marine CSEM Data

In this abstract, we present an efficient approximation method, with which we simulate the effects of the seabed pipeline via line-segment (volume-less) finite element (FE), and validate the method in comparison to a full 3D FE numerical solution. It is seen that we can determine a certain region in a computational model where the approximation method provides inaccurate results (only very close to pipeline). The response calculated in such regions should be excluded e.g. from CSEM data inversion.