A Numerical 1.5D Method for the Rapid Simulation of Geophysical Resistivity Measurements
AbstractIn some geological formations, borehole resistivity measurements can be simulated using a sequence of 1D models. By considering a 1D layered media, we can reduce the dimensionality of the problem from 3D to 1.5D via a Hankel transform. The resulting formulation is often solved via a semi-analytic method, mainly due to its high performance. However, semi-analytic methods have important limitations such as, for example, their inability to model piecewise linear variations on the resistivity. Herein, we develop a multi-scale finite element method (FEM) to solve the secondary field formulation. This numerical scheme overcomes the limitations of semi-analytic methods while still delivering high performance. We illustrate the performance of the method with numerical synthetic examples based on two symmetric logging-while-drilling (LWD) induction devices operating at 2 MHz and 500 KHz, respectively. View Full-Text
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Shahriari, M.; Rojas, S.; Pardo, D.; Rodríguez-Rozas, A.; Bakr, S.A.; Calo, V.M.; Muga, I. A Numerical 1.5D Method for the Rapid Simulation of Geophysical Resistivity Measurements. Geosciences 2018, 8, 225.
Shahriari M, Rojas S, Pardo D, Rodríguez-Rozas A, Bakr SA, Calo VM, Muga I. A Numerical 1.5D Method for the Rapid Simulation of Geophysical Resistivity Measurements. Geosciences. 2018; 8(6):225.Chicago/Turabian Style
Shahriari, Mostafa; Rojas, Sergio; Pardo, David; Rodríguez-Rozas, Angel; Bakr, Shaaban A.; Calo, Victor M.; Muga, Ignacio. 2018. "A Numerical 1.5D Method for the Rapid Simulation of Geophysical Resistivity Measurements." Geosciences 8, no. 6: 225.
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