한국지구물리탐사학회:학술대회논문집
- 한국지구물리탐사학회 2007년도 특별 심포지엄 논문집
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- Pages.87-100
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- 2007
Marine CSEM의 최근 기술 개발 및 적용 사례
A Review on Recent Development and Application of Marine Controlled-Source Electromagnetics
- 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)
- 발행 : 2007.12.05
초록
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.