Conditioning of the 3D Marine Controlled Source Electromagnetic Inversion

Andrew M. Pethick; Brett D. Harris

doi:10.1081/22020586.2010.12041985

ISSN: 2202-0586
E-ISSN:

oa Conditioning of the 3D Marine Controlled Source Electromagnetic Inversion
Authors Andrew M. Pethick^a and Brett D. Harris^b
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^a Curtin University of Technology, 26 Dick Perry Ave, Kensington Western Australia, [email protected] ^b Curtin University of Technology, 26 Dick Perry Ave, Kensington Western Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2010, Issue ASEG2010 - 21st Geophysical Conference, Dec 2010, p. 1 - 4
DOI: https://doi.org/10.1081/22020586.2010.12041985
- Published online: 01 Dec 2010

Abstract

Summary

Three dimensional inversion of Marine Controlled Source Electromagnetic data (MCSEM) data is complex. Achieving an acceptable outcome in a reasonable time frame requires considerable manual input to the problem. We proposed a methodology for preconditioning the inversion for integral equation approximated forward modeller. Both preconditioning of the inversion process and feed-back during the inversion process are used to streamline the overall 3D MCSEM inversion process. We demonstrate the influence each of the components (Ex, Ey, Ez, Hx, Hy and Hz) have on inversion. We demonstrate how preconditioning and iterative analysis of MCSEM data can lead to a more satisfactory result for 3D inversion.

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2010-12-01

2026-01-17

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References

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Mittet, R., Brauti, K., Maulana, H. and Wicklund, T.A., 2008, CMP inversion and post-inversion modelling for marine CSEM data. First Break 20, 59-67.
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Zhdanov, M., Gribenko, A., Čuma, M,. 2007 Regularized focusing inversion of marine CSEM data using minimum vertical support stabilizer, University of Utah.
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Article Type: Research Article

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oa Conditioning of the 3D Marine Controlled Source Electromagnetic Inversion

Abstract

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