Relatively little is known about marine controlled-source electromagnetic
surveys (MCSEM) used to detect hydrocarbon reservoirs. Typical MCSEM require the
use of inversion to generate a model of the subsurface. We utilize a 3D finite-element
forward model to simulate a MCSEM survey. With the results we were able to
determine the strengths and weaknesses of each transmitter and receiver configuration
that would best detect a shallow hydrocarbon target. Careful selection of the correct
configuration is important as we have found that incorrect transmitter orientation, offset
and receiver measurement component can yield misleading results. Using the ideal
configuration we were able to directly image the hydrocarbon target without the use of
inversion modeling. The direct image is able to show the hydrocarbon target's shape
and edges without any ambiguity. The direct image of the target can potentially be used
to refine 3D inversion modeling, or be used in conjunction with seismic profiles to refine
seismic picks.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/5790 |
| Date | 17 September 2007 |
| Creators | Lau, Ryan |
| Contributors | Everett, Mark E. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 384062 bytes, electronic, application/pdf, born digital |
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