Perturbational Method for Modeling Electromagnetic Propagation Through Non-axisymmetric Geophysical Formations

This work presents new a technique for modeling electromagnetic sensors used in well prospecting. These sensors are usually immersed in complex (asymmetric, inhomogeneous, and dissipative) geophysical formations, resulting in a challenging problem for traditional computation electromagnetic techniques. We analyzed this propagation problem by using a perturbational method based on the Born approximation for solving a Fredholm integral equation. Numerical results are presented for evidencing the effects of non-symmetric geophysical formations in the response of electromagnetic well-logging tools.