HR: 1330h
AN: T52C-0302    [PDF]
TI: A Perturbation Expansion Approach to Solving the Electromagnetic Induction Problem in Three Dimensions
AU: * Natek, N H
EM: nhnatek@sandia.gov
AF: Sandia National Laboratories, Geophysical Technology Department, P.O. Box 5800, MS-0750, Albuquerque, NM 87185 United States
AU: * Natek, N H
EM: nhnatek@sandia.gov
AF: New Mexico Tech, Department of Earth and Environmental Science, 801 Leroy Place, Socorro, NM 87801 United States
AU: Weiss, C J
EM: cjweiss@sandia.gov
AF: Sandia National Laboratories, Geophysical Technology Department, P.O. Box 5800, MS-0750, Albuquerque, NM 87185 United States
AU: Weiss, C J
EM: cjweiss@sandia.gov
AF: Scripps Institution of Oceanography, Institute for Geophysics and Planetary Physics, La Jolla, CA 92093-0225 United States
AU: Tobin, H J
EM: tobin@nmt.edu
AF: New Mexico Tech, Department of Earth and Environmental Science, 801 Leroy Place, Socorro, NM 87801 United States
AB: We address the electromagnetic induction problem for fully 3D geologic media and present a solution to the governing Maxwell equations based on a power series expansion. The coefficients in the series are computed using the adjoint method assuming an underlying homogeneous reference model. These solutions are available analytically for point dipole source terms and lead to rapid calculation of the expansion coefficients. First order solutions are presented for a model study in petroleum geophysics composed of a multi-component induction sonde proximal to fault within a compartmentalized hydrocarbon reservoir.
DE: 8199 General or miscellaneous
SC: Tectonophysics [T]
MN: 2003 Fall Meeting