A feasibility study of time-lapse seismic monitoring of CO<sub>2sub> sequestration in a layered basalt reservoir
- 作者：Murari Khatiwada<sup>asup><sup> ; sup><sup>khatiwada1@gmail.comsup><sup> ; sup><sup>khatiwada@ou.edusup> ; Ludmila Adam<sup>bsup> ; Michael Morrison<sup>bsup> ; Kasper van Wijk<sup>bsup>
- 关键词：Basalts ; Wave scattering ; CO2 sequestration ; Time-lapse monitoring ; Velocity perturbation
- 刊名：Journal of Applied Geophysics
- 出版年：2012
- 期刊代码：39_09269851
- 类别：ear
- 出版时间：July, 2012
- 卷：82
- 期：Complete
- 页码：145-152
- 文件大小：1723 K
摘要
We investigate the potential of scattered seismic waves to remotely sense geological sequestration of CO<sub>2sub> in basalt. Numerical studies in horizontally layered models suggest that strong scattering quickly complicates the wave fields, but also provides a sensitive tool to monitor physical changes in and around the reservoir. These results go hand-in-hand with recent laboratory work and rock-physics modeling that has shown significant changes in the seismic properties of a reservoir undergoing CO<sub>2sub> sequestration, due to fluid substitution and mineral precipitation.