@Article{CiCP-28-249,
author = {Huang , XingguoJakobsen , MortenSolberg Eikrem , Kjersti and Nævdal , Geir},
title = {Target-Oriented Inversion of Time-Lapse Seismic Waveform Data},
journal = {Communications in Computational Physics},
year = {2020},
volume = {28},
number = {1},
pages = {249--275},
abstract = {<p style="text-align: justify;">Full waveform inversion of time-lapse seismic data can be used as a means
of estimating the reservoir changes due to the production. Since the repeated computations for the monitor surveys lead to a large computational cost, time-lapse full waveform inversion is still considered to be a challenging task. To address this problem,
we present an efficient target-oriented inversion scheme for time-lapse seismic data
using an integral equation formulation with Gaussian beam based Green&#39;s function
approach. The proposed time-lapse approach allows one to perform a local inversion
within a small region of interest (e.g. a reservoir under production) for the monitor survey. We have verified that the T-matrix approach is indeed naturally target-oriented,
which was mentioned by Jakobsen and Ursin [24] and allows one to reduce the computational cost of time-lapse inversion by focusing the inversion on the target-area only.
This method is based on a new version of the distorted Born iterative T-matrix inverse
scattering method. The Gaussian beam and T-matrix are used in this approach to perform the wavefield computation for the time-lapse inversion in the baseline model
from the survey surface to the target region. We have provided target-oriented inversion results of the synthetic time-lapse waveform data, which shows that the proposed
scheme reduces the computational cost significantly.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.OA-2018-0143},
url = {http://global-sci.org/intro/article_detail/cicp/16836.html}
}