Electric resistivity inversion via reverse time migration algorithm of seismic data

Title
Electric resistivity inversion via reverse time migration algorithm of seismic data
Author(s)
하태영; 민동주; 신창수; 편석준
Publication Year
2004-10-14
Abstract
We propose an electric resistivity inversion method that is similar to reverse time migration technique applied to seismic data. In order to apply the adjoint state of Poisson equation in resistivity inverse problem, we introduce apparent electric field defined as the scalar product between computed electric field and weighting factor. In our algorithm, we use the adjoint state of matrix equation originated from solving Poisson equation by the mixed finite-element mehtod, and introduce a virtual source and backpropagation term as in seismic inverse problem. Since we can compute steepest descent direction by an inner prodect of backpropagated residual and virtual source, we can circumvent the cumbersome process of computing Jacobian matrix directly.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31732
Bibliographic Citation
SEG International Exposition and 74th Annual Meeting, pp.1 - 4, 2004
Publisher
The Society of Exploration Geophysicists
Type
Conference
Language
English
Publisher
The Society of Exploration Geophysicists
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