A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements
In 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 me...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/69941 |
| _version_ | 1848762173321379840 |
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| author | Shahriari, M. Rojas, S. Pardo, D. Rodríguez-Rozas, A. Bakr, S. Calo, Victor Muga, I. |
| author_facet | Shahriari, M. Rojas, S. Pardo, D. Rodríguez-Rozas, A. Bakr, S. Calo, Victor Muga, I. |
| author_sort | Shahriari, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In 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. |
| first_indexed | 2025-11-14T10:43:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-69941 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:43:21Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-699412018-08-23T03:46:36Z A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements Shahriari, M. Rojas, S. Pardo, D. Rodríguez-Rozas, A. Bakr, S. Calo, Victor Muga, I. In 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. 2018 Journal Article http://hdl.handle.net/20.500.11937/69941 10.3390/geosciences8060225 http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Shahriari, M. Rojas, S. Pardo, D. Rodríguez-Rozas, A. Bakr, S. Calo, Victor Muga, I. A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title | A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title_full | A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title_fullStr | A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title_full_unstemmed | A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title_short | A numerical 1.5D method for the rapid simulation of geophysical resistivity measurements |
| title_sort | numerical 1.5d method for the rapid simulation of geophysical resistivity measurements |
| url | http://hdl.handle.net/20.500.11937/69941 |