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Three-dimensional Electromagnetic Responses of Disk-shaped Hydrocarbon Reservoir in Marine SedimentsGold Open Access

Authors: H. Jang, H. Jang and H.J. Kim
Event name: 76th EAGE Conference and Exhibition 2014
Session: Student Session - EM, Gravity and Earthquake Seismology
Publication date: 16 June 2014
DOI: 10.3997/2214-4609.20140954
Organisations: EAGE
Language: English
Info: Abstract, PDF ( 335.53Kb )

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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