1. Key Laboratory of Petroleum Resource Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China.
2. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
3. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China.
Abstract From June 2008 to August 2013, approximately 67 kt of CO2 was injected into a deep saline formation at the Ketzin pilot CO2 storage site. During injection, 3D seismic surveys have been performed to monitor the migration of sequestered CO2. Seismic monitoring results are limited by the acquisition and signal-to-noise ratio of the acquired data. The multiphysical reservoir simulation provides information regarding the CO2 fluid behavior, and the approximated model should be calibrated with the monitoring results. In this work, property models are delivered from the multiphysical model during 3D repeated seismic surveys. The simulated seismic data based on the models are compared with the real data, and the results validate the effectiveness of the multiphysical inversion method. Time-lapse analysis shows the trend of CO2 migration during and after injection.
Fund: This work was supported by the National Natural Science Foundation of China (Grant No. 42025403) and the Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No. 2023074).
Corresponding Authors: Yi-bo Wang (E-mail: wangyibo@mail.iggcas.ac.cn).
E-mail: wangyibo@mail.iggcas.ac.cn
About author: Yikang Zheng received the Ph.D. degree from the Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, in 2016. He is an Associate Professor at the Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences. His research interests include geophysical exploration, monitoring methods and their applications
Cite this article:
. 3D seismic forward modeling from the multiphysical inversion at the Ketzin CO2 storage site[J]. APPLIED GEOPHYSICS, 2024, 21(3): 593-605.
2024, Vol. 21 
