1887
Volume 39, Issue 1
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

Abstract

In this paper we consider an application of the method of electromagnetic (EM) migration to the interpretation of a typical marine controlled-source (MCSEM) survey consisting of a set of sea-bottom receivers and a moving electrical bipole transmitter. Three-dimensional interpretation of MCSEM data is a very challenging problem because of the enormous number of computations required in the case of the multi-transmitter and multi-receiver data acquisition systems used in these surveys. At the same time, we demonstrate that the MCSEM surveys with their dense system of transmitters and receivers are extremely well suited for application of the migration method. In order to speed up the computation of the migration field, we apply a fast form of integral equation (IE) solution based on the multigrid quasi-linear (MGQL) approximation which we have developed. The principles of migration imaging formulated in this paper are tested on a typical model of a sea-bottom petroleum reservoir.

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2008-03-01
2026-01-12

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References

  1. Constable S. Srnka L. J. 2007 An introduction to marine controlled-source electromagnetic methods for hydrocarbon exploration: Geophysics 72 WA3 WA12 doi:10.1190/1.2432483
    [Google Scholar]
  2. Constable S. Weiss C. J. 2006 Mapping thin resistors and hydrocarbons with marine EM methods: insights from 1D modelling: Geophysics 71 G43 G51 doi:10.1190/1.2187748
    [Google Scholar]
  3. Edwards N. 2005 Marine controlled source electromagnetics: principles, methodologies, future commercial applications: Surveys in Geophysics 26 675 700 doi:10.1007/s10712-005-1830-3
    [Google Scholar]
  4. Eidesmo T. Ellingsrud S. MacGregor L. M. Constable S. Sinha M. C. Johansen S. Kong F. N. Westerdahl H. 2002 Sea bed logging (SBL), a new method for remote and direct identification of hydrocarbon filled layers in deepwater areas: First Break 20 144 152
    [Google Scholar]
  5. Ellingsrud S. Eidesmo T. Johansen S. Sinha M. C. MacGregor L. M. Constable S. 2002 Remote sensing of hydrocarbon layers by sea bed logging (SBL): results from a cruise offshore Angola: The Leading Edge 21 972 982 doi:10.1190/1.1518433
    [Google Scholar]
  6. Gao G. Torres-Verdin C. Fang S. 2004 Fast 3D modelling of borehole induction measurements in dipping and anisotropic formations using a novel approximation technique: Petrophysics 45 335 349
    [Google Scholar]
  7. Hursán G. Zhdanov M. S. 2002 Contraction integral equation method in three-dimensional electromagnetic modelling: Radio Science 37 1089 2002 doi:10.1029/2001RS002513
    [Google Scholar]
  8. Kasaya T. Goto T. Takagi R. 2006 Marine electromagnetic observation technique and its development – for crustal structure survey: Butsuri-Tansa 59 585 594
    [Google Scholar]
  9. Mittet R. , Maao F. , Aakervik O. M. , and Ellingsrud S., 2005, A two-step approach to depth migration of low frequency electromagnetic data: 75th Annual International Meeting, SEG, Expanded Abstracts, 522–525.
  10. Portniaguine O. Zhdanov M. S. 1999 Focusing geophysical inversion images: Geophysics 64 874 887 doi:10.1190/1.1444596
    [Google Scholar]
  11. Tada N. Seama K. 2006 Surveys of the oceanic crust resistivity structure using a magnetometric resistivity method: Butsuri-Tansa 59 171 180
    [Google Scholar]
  12. Tompkins M. J. 2004 Marine controlled-source electromagnetic imaging for hydrocarbon exploration: interpreting subsurface electrical properties: First Break 22 27 33
    [Google Scholar]
  13. Ueda T. Zhdanov M. S. 2006 Fast numerical modelling of multitransmitter electromagnetic data using multigrid quasi-linear approximation: IEEE Transactions on Geoscience and Remote Sensing 44 1428 1434 doi:10.1109/TGRS.2006.864386
    [Google Scholar]
  14. Zhdanov M. S. 1981 Continuation of nonstationary electromagnetic fields in geoelectrical problems: Izv. Akad. Nauk SSSR: Fizika Zemly 12 60 69
    [Google Scholar]
  15. Zhdanov M. S., 1999, Electromagnetic migration: in Deep Electromagnetic Exploration, Springer-Verlag, Narosa Publishing House, 283–298.
  16. Zhdanov M. S., 2001, Method of broad band electromagnetic holographic imaging: US Patent # 6,253,100 B1.
  17. Zhdanov M. S., 2002, Geophysical Inverse Theory and Regularization Problems, Elsevier.
  18. Zhdanov M. S. Frenkel M. A. 1983 a The solution of the inverse problems on the basis of the analytical continuation of the transient electromagnetic field in reverse time: Journal of Geomagnetism and Geoelectricity 35 747 765
    [Google Scholar]
  19. Zhdanov M. S. , and Frenkel M. A., 1983 b, Electromagnetic migration in Hjelt, S. E., ed., The development of the deep geoelectric model of the baltic shield, Part 2, Univ. of Oulu, Oulu, 37–58.
  20. Zhdanov M. S. Fang S. 1996 Quasi-linear approximation in 3D EM modelling: Geophysics 61 646 665 doi:10.1190/1.1443994
    [Google Scholar]
  21. Zhdanov M. S. , and Keller G., 1994, The geoelectrical methods in geophysical exploration: Elsevier.
  22. Zhdanov M. S. Traynin P. Booker J. 1996 Underground imaging by frequency domain electromagnetic migration: Geophysics 61 666 682 doi:10.1190/1.1443995
    [Google Scholar]
  23. Zhdanov M. S. Traynin P. 1997 Migration versus inversion in electromagnetic imaging technique: Journal of Geomagnetism and Geoelectricity 49 1415 1437
    [Google Scholar]
/content/journals/10.1071/EG08002
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Fast numerical methods for marine controlled-source electromagnetic (EM) survey data based on multigrid quasi-linear approximation and iterative EM migration
Exploration Geophysics 39, 60 (2008); https://doi.org/10.1071/EG08002
/content/journals/10.1071/EG08002
/content/journals/10.1071/EG08002
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  • Article Type: Research Article
Keyword(s): electromagnetic method, marine CSEM, integral equation, quasi-linear approximation, electromagnetic migration, numerical method, inverse problem.

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