PhD Student Sea-Eun Park Publishes 4D FWI Paper in World-Renowned Journal IEEE TGRS

[Oslo=GeoVis] Sea-Eun Park, a Ph.D. student at the Computational Geophysics Lab of Jeonbuk National University (JBCGL), has achieved the remarkable feat of publishing a new research paper in the world-renowned journal IEEE Transactions on Geoscience and Remote Sensing (IEEE TGRS) on February 3, 2025. IEEE TGRS is a top-tier Q1 journal in the field of remote sensing and geoscience, with an Impact Factor of 8.2 as of 2023.

The newly published paper is titled "Acoustic Anisotropic Time-Lapse Full-Waveform Inversion Based on Elliptical Anisotropic Assumption at the Sleipner Site." This study utilizes 4D streamer seismic survey data from the Sleipner carbon dioxide (CO2) geological storage site in Norway to present a novel 4D Full-Waveform Inversion (FWI) technique for precisely monitoring changes in the subsurface over time.

In particular, Park successfully detected the P-wave velocity reduction caused by the injected CO2 plume by performing FWI based on an acoustic wave equation with an elliptical anisotropic assumption for the subsurface velocity. This is expected to play a key role in assessing the stability of CO2 geological storage and predicting its long-term behavior.

This research is the result of an international collaboration with Professor Alexey Stovas of the Norwegian University of Science and Technology (NTNU) and Dr. Joonsang Park of the Norwegian Geotechnical Institute (NGI) serving as co-advisors. "I am thrilled to have applied the latest FWI technology to real field data from Sleipner through collaboration with world-class researchers and to publish the results in such a prestigious journal," said Park. "I hope this research can contribute to the commercialization of CO2 geological storage technology."

This research was supported by the Energy Human Resources Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP).

Paper Information:

• Title: Acoustic Anisotropic Time-Lapse Full-Waveform Inversion Based on Elliptical Anisotropic Assumption at the Sleipner Site
• Journal: IEEE Transactions on Geoscience and Remote Sensing
• DOI: https://doi.org/10.1109/TGRS.2024.3354225