Joint iterative migration of electric and magnetic field data

Michael S. Zhdanov, Takumi Ueda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Marine controlled-source electromagnetic (MCSEM) surveys become widely used in off-shore petroleum exploration. However, the interpretation of the MCSEM data is a very challenging problem because of the enormous amount of computations required in the case of the multi-transmitter and multi-receiver data acquisition systems used in these surveys. In this paper we demonstrate that this problem can be solved using the method of electromagnetic migration. We extend the basic principles of electric field migration to the case of joint electric and magnetic field interpretation. The joint migration field is produced by back propagation within the conductive sea-bottom sediments of all electric and magnetic signals recorded in the receivers. We demonstrate that the joint migration of the EM field data provides a better quality image of a sea-bottom resistive structure (e.g., a hydrocarbon reservoir) than the results of individual migration for the different (electric or magnetic) field components.

Original languageEnglish
Title of host publicationSociety of Exploration Geophysicists - 77th SEG International Exposition and Annual Meeting, SEG 2007
PublisherSociety of Exploration Geophysicists
Pages599-603
Number of pages5
ISBN (Print)9781604238976
Publication statusPublished - 2007 Jan 1
Externally publishedYes
Event77th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2007 - San Antonio, United States
Duration: 2007 Sep 232007 Sep 26

Other

Other77th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2007
CountryUnited States
CitySan Antonio
Period07/9/2307/9/26

ASJC Scopus subject areas

  • Geophysics

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    Zhdanov, M. S., & Ueda, T. (2007). Joint iterative migration of electric and magnetic field data. In Society of Exploration Geophysicists - 77th SEG International Exposition and Annual Meeting, SEG 2007 (pp. 599-603). Society of Exploration Geophysicists.