1887
Volume 24 Number 6
  • ISSN: 0263-5046
  • E-ISSN: 1365-2397

Abstract

During 2004 and 2005, Shell Brasil (SBEP) purchased on a spec basis controlled source electromagnetic (CSEM or EM) datasets in the Campos, Santos, and Espirito Santo Basins of southeast Brazil (Figure 1). PGS acquired the 2004 dataset (~1600 km), while Electromagnetic Geoservices (emgs) acquired the 2005 dataset (~1200 km). Shell evaluated the CSEM data over a number of field analogues and prospects, including Shell’s 2002 O-North discovery in the Campos Basin. In the process, we obtained calibration of the technology and a successful pre-drill EM prediction prior to Shell’s Nautilus discovery. In interpreting these large surveys, we also encountered situations where CSEM technology was ineffective. With this experience, we now have a more realistic view of the technique’s strengths and limitations. As a result, we can often use CSEM in an integrated approach to influence prospect portfolio decisions. We are also evaluating new technology to increase the resolving power of EM.

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/content/journals/10.3997/1365-2397.2006017
2006-06-01
2021-01-25
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http://instance.metastore.ingenta.com/content/journals/10.3997/1365-2397.2006017
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  • Article Type: Research Article
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