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Abstract

Summary

This study presents a three-dimensional (3D) marine controlled-source electromagnetic (CSEM) modeling algorithm using primary fields for a homogeneous half-space to accurately account for airwave effects. This algorithm is validated with analytic solutions for 1D two- and four-layer models and numerical results from another 3D model. Using this code, we investigate the 3D EM responses of a 100 m thick, 5 km disk-shaped hydrocarbon reservoir buried at a depth of 1 km below the seafloor. From the numerical results, we can recognize that a 3D effect of the reservoir typically produces a transition zone in comparison with 1D model responses.

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/content/papers/10.3997/2214-4609.20140954
2014-06-16
2020-05-26
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References

  1. Constable, S. and Weiss, C.J.
    [2006] Mapping thin resistors and hydrocarbons with marine EM methods: Insights from 1D modelling. Geophysics, 71, G43–G51. doi: 10.1190/1.2187748
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