한국지구물리탐사학회:학술대회논문집

Korean Society of Earth and Exploration Geophysicists (한국지구물리·물리탐사학회)
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A Review on Recent Development and Application of Marine Controlled-Source Electromagnetics

Marine CSEM의 최근 기술 개발 및 적용 사례

  • Song, Yoon-Ho (Groundwater & Geothermal Resources Division, KIGAM) ;
  • Kim, Hee-Joon (Dept. of Environmental Exploration Engineering, Pukyong National University) ;
  • Seol, Soon-Jee (Dept. of Geoenvironmental System Engineering, Hanyang University)
  • 송윤호 (한국지질자원연구원 지하수지열연구부) ;
  • 김희준 (부경대학교 환경탐사공학과) ;
  • 설순지 (한양대학교 지구환경시스템공학과)
  • Published : 2007.12.05
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Abstract

Marine controlled source electromagnetics (CSEM) or sea bed logging (SBL) is an emerging technology which can provide quantitative information on hydrocarbon reservoir embedded in marine sediment. Electromagnetic responses to the resistive formation saturated with a certain amount of hydrocarbon can be characterized by less attenuated profile otherwise exponentially attenuated fields in conductive sea water or through sediments, and thus can be regarded as a direct indicator of hydrocarbon. In this paper, we introduce the technology of marine CSEM in terms of its physical characteristics and in comparison of typical three-dimensional (3-D) seismic method. History and evolution of commercial marine CSEM are also briefly summarized. We then introduce a representative case history showing how marine CSEM works in reality. Outlook of future applications and technical advances to be made are discussed. Finally, we demonstrate a test example of 2.5-D inversion of synthetic data as the groundwork of 3-D inversion of field data that is to be the ultimate goal of technical development.

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