Marine controlled-source electromagnetic (CSEM) surveys have been developed recently as a means for detecting and delineating hydrocarbon reservoirs situated in sea beds. Although some theoretical work exists that establishes the principles of the marine CSEM method, much remains to be understood about its practical applicability. Our work seeks to establish the conditions under which marine CSEM is feasible. The research uses a set of geo-electrical models derived from actual exploration projects, and assumes commonly used acquisition geometries and realistic noise levels. Theoretical development is performed for 1-D geo-electrical sections, and numerical modeling is carried out for 2-D and 3-D problems.
Goals
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Understanding of:
- The ability to resolve reservoir geometry (size, shape, dip angle, . . .)
- The the influences of conductivity contrast between targets and seabed
- Shallow geological noises situated above targets
- Survey geometries
- Determine the necessary survey geometry and frequencies for a successful marine CSEM survey
Check back soon for more detailed (downloadable) information on our Marine CSEM research. You can also visit our CSEM research consortia page.
