1887

Abstract

Summary

The paper proposes the approach to increase the reliability of determining target objects locations and their characteristics with the use of geometric 3D-inversion of electromagnetic survey data. This approach is based on the analysis of repeatability of 3D-inversion results for different rotations of the initial model block structures around the vertical axis. The forward problem solution is based on the finite element method on the nonconforming meshes with hexahedral cells, which smoothly approximate the curved surfaces: the Earth relief and subhorizontal borders between the geoelectrical model layers. The possibilities of the proposed approach are demonstrated on synthetic data for a complex multilayer geoelectrical model, which is characterized by the relief and contains lateral complex shape 3D-inhomogeneties overlapping the target object. The numerical experimental results show well the repeatability of conductivity distributions obtained as the inversion result for different rotations of the initial model block structures. This suggests the possibility of reliably determining the target objects in the realistic complex geoelectrical conditions.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201901764
2019-04-16
2024-04-20
Loading full text...

Full text loading...

References

  1. Haber, E. and Schwarzbach, C.
    [2014] Parallel inversion of large-scale airborne time-domain electromagnetic data with multiple OcTree meshes. Inverse Probl, 30.
    [Google Scholar]
  2. McMillanM.S., OldenburgD.W., HaberE., and SchwarzbachC.
    [2015] Parametric 3D inversion of airborne time domain electromagnetics. 24th International Geophysical Conference and Exhibition. ASEG Extended Abstracts 2015: pp. 1–5.
    [Google Scholar]
  3. Persova, M.G., Soloveichik, Y.G., Vagin, D.V., Domnikov, P.A., Kiselev, D.S., Koshkina, Yu.I. and Simon, E.I.
    [2018a] Multidimensional processing of the airborne EM data in the complex media. Engineering and Mining Geophysics 2018 - Proceedings of the 14th Conference and Exhibition on Engineering and Mining Geophysics2018. Almaty. Kazakhstan. Art. У08-01 (46459).
    [Google Scholar]
  4. Persova, M.G., Soloveichik, Y.G, Vagin, D.V., Koshkina, Y.I. and Trubacheva, O.S.
    [2018b] Recovery of subvertical target objects differently placed relative to airborne electromagnetic survey profiles in complex media. Proceedings of the 14th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2018. 1(4). 226–231.
    [Google Scholar]
  5. Persova, M.G., Soloveichik, Y.G., Koshkina, Y.I., Vagin, D.V. and Trubacheva, O.S.
    [2016] Geometrical nonlinear 3D inversion of airborne time domain EM data. Near Surface Geoscience 2016 - Proceedings of the 1st Conference on Geophysics for Mineral Exploration and Mining, Barcelona, Tu MIN 07.
    [Google Scholar]
  6. Persova, M.G., Soloveichik, Y.G., Simon, E.I., Koshkina, Y.I., Epanchintseva, T.B.
    [2015] Methods and software to perform 3D-inversion of the airborne electrical prospecting data in time domain. Geophysics 2015 - 11th EAGE International Scientific and Practical Conference and Exhibition on Engineering and Mining Geophysics, p. 51DUMMY.
    [Google Scholar]
  7. Persova, M.G., Soloveichik, Y.G. and Trigubovich, G.M.
    [2011] Computer modeling of geoelectromagnetic fields in three-dimensional media by the finite element method. Izvestiya, Physics of the Solid Earth, 47(2), 79–89.
    [Google Scholar]
  8. Soloveichik, Y.G., Persova, M.G., Domnikov, P.A., Koshkina, Y.I. and Vagin, D.V.
    [2018] Finiteelement solution to multidimensional multisource electromagnetic problems in the frequency domain using non-conforming meshes. Geophysical Journal International, 212 (3), 2159–2193.
    [Google Scholar]
  9. Yang, D., Oldenburg, D.W. and Haber, E.
    [2014] 3-D inversion of airborne electromagnetic data parallelized and accelerated by local mesh and adaptive soundings. Geophys. J. Int., 196, 1492–1507.
    [Google Scholar]
  10. Yin, C., Zhang, B., Liu, Y. and Cai, J.
    [2016] A goal-oriented adaptive finite-element method for 3D scattered airborne electromagnetic method modeling. Geophysics, 81, E337–E346.
    [Google Scholar]
  11. Haber, E. and Schwarzbach, C.
    [2014] Parallel inversion of large-scale airborne time-domain electromagnetic data with multiple OcTree meshes. Inverse Probl, 30.
    [Google Scholar]
  12. McMillanM.S., OldenburgD.W., HaberE., and SchwarzbachC.
    [2015] Parametric 3D inversion of airborne time domain electromagnetics. 24th International Geophysical Conference and Exhibition. ASEG Extended Abstracts 2015: pp. 1–5.
    [Google Scholar]
  13. Persova, M.G., Soloveichik, Y.G., Vagin, D.V., Domnikov, P.A., Kiselev, D.S., Koshkina, Yu.I. and Simon, E.I.
    [2018a] Multidimensional processing of the airborne EM data in the complex media. Engineering and Mining Geophysics 2018 - Proceedings of the 14th Conference and Exhibition on Engineering and Mining Geophysics 2018. Almaty. Kazakhstan. Art. У08-01 (46459).
    [Google Scholar]
  14. Persova, M.G., Soloveichik, Y.G, Vagin, D.V., Koshkina, Y.I. and Trubacheva, O.S.
    [2018b] Recovery of subvertical target objects differently placed relative to airborne electromagnetic survey profiles in complex media. Proceedings of the 14th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2018. 1(4). 226–231.
    [Google Scholar]
  15. Persova, M.G., Soloveichik, Y.G., Koshkina, Y.I., Vagin, D.V. and Trubacheva, O.S.
    [2016] Geometrical nonlinear 3D inversion of airborne time domain EM data. Near Surface Geoscience 2016 - Proceedings of the 1st Conference on Geophysics for Mineral Exploration and Mining, Barcelona, Tu MIN 07.
    [Google Scholar]
  16. Persova, M.G., Soloveichik, Y.G., Simon, E.I., Koshkina, Y.I., Epanchintseva, T.B.
    [2015] Methods and software to perform 3D-inversion of the airborne electrical prospecting data in time domain. Geophysics 2015 - 11th EAGE International Scientific and Practical Conference and Exhibition on Engineering and Mining Geophysics, p. 51DUMMY.
    [Google Scholar]
  17. Persova, M.G., Soloveichik, Y.G. and Trigubovich, G.M.
    [2011] Computer modeling of geoelectromagnetic fields in three-dimensional media by the finite element method. Izvestiya, Physics of the Solid Earth, 47(2), 79–89.
    [Google Scholar]
  18. Soloveichik, Y.G., Persova, M.G., Domnikov, P.A., Koshkina, Y.I. and Vagin, D.V.
    [2018] Finiteelement solution to multidimensional multisource electromagnetic problems in the frequency domain using non-conforming meshes. Geophysical Journal International, 212 (3), 2159–2193.
    [Google Scholar]
  19. Yang, D., Oldenburg, D.W. and Haber, E.
    [2014] 3-D inversion of airborne electromagnetic data parallelized and accelerated by local mesh and adaptive soundings. Geophys. J. Int., 196, 1492–1507.
    [Google Scholar]
  20. Yin, C., Zhang, B., Liu, Y. and Cai, J.
    [2016] A goal-oriented adaptive finite-element method for 3D scattered airborne electromagnetic method modeling. Geophysics, 81, E337–E346.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201901764
Loading
/content/papers/10.3997/2214-4609.201901764
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error