Joint inversion of Time-Lapse Surface Gravity and Seismic Data for
  Monitoring of 3D CO$_2$ Plumes via Deep Learning
Adrian Celaya Mauricio Araya-Polo
We introduce a fully 3D, deep learning-based approach for the joint inversion
of time-lapse surface gravity and seismic data for reconstructing subsurface
density and velocity models. The target application of this proposed inversion
approach is the prediction of subsurface CO2 plumes as a complementary tool for
monitoring CO2 sequestration deployments. Our joint inversion technique
outperforms deep learning-based gravity-only and seismic-only inversion models,
achieving improved density and velocity reconstruction, accurate segmentation,
and higher R-squared coefficients. These results indicate that deep
learning-based joint inversion is an effective tool for CO$_2$ storage
monitoring. Future work will focus on validating our approach with larger
datasets, simulations with other geological storage sites, and ultimately field
data.