The Impact of Displacement Patterns on CO2 Storage in Saline Aquifers Based on Two Real Core Micromodels
Changzhong Zhao, Qingping Li, Shouwei Zhou, Yongchen Song, Yi Zhang · 2026
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Description
Changzhong Zhao and colleagues watch carbon dioxide push salt water through rock at microscopic scale, in a 2026 study of underground carbon storage. Storing carbon dioxide in deep salty aquifers is a leading climate strategy, and how much gas the rock holds depends on the pattern the two fluids form in the pore space. The team etched two glass micromodels from real Berea sandstone cores and filmed the displacement under varied conditions.
Three patterns appeared. When the gas advanced in bold viscous fingers, it filled the most space, flowed most easily, and traced the most complex shapes. When capillary forces ruled, the gas broke into many small clusters and filled the least. A crossover state, pulled by both forces, behaved in between but with extra complexity. Gas state and temperature, working through viscosity, strongly shaped pressure and progress, while the rock pattern altered local details rather than the overall trend.
Catalog record
| CREATOR | Changzhong Zhao, Qingping Li, Shouwei Zhou, Yongchen Song, Yi Zhang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 40 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |