MEchanics GAthering -MEGA- Seminar: Three-dimensional fluid-driven stable frictional ruptures
Event details
| Date | 25.11.2021 |
| Hour | 16:15 › 17:30 |
| Speaker | Alexis Sáez (GEL, EPFL) |
| Location | Online |
| Category | Conferences - Seminars |
| Event Language | English |
Abstract Understanding the interplay between fluid flow and frictional slip on geologic structural discontinuities such as fractures and faults is relevant to a number of industrial applications (e.g., deep geothermal energy, CO2 geological sequestration) and natural phenomena (e.g., fluid-driven seismic swarms and aftershocks). Moreover, there is increasing interest on fluid-induced frictional slip that propagates stably, with field observations suggesting that stable slip seems to be the most frequent result of both natural and anthropogenic fluid injections in the Earth’s crust. Despite its relevance, the conditions that control the propagation of fluid-driven stable frictional slip are still poorly understood. In this talk, we present a model and numerical method that are able to account and solve for all the stages of fluid-induced slip growth in 3-D: nucleation, propagation, and arrest. We analyse the response of the model in all the relevant parametric space numerically, and provide analytical solutions in some limiting cases. We discuss the implications of our findings to a number of industrial and scientific problems of interest, and highlight the remaining open questions on the mechanics of this phenomenon.
Bio Alexis Sáez obtained his bachelor and master degree in civil engineering at the University of Chile. He is currently a PhD student in the Laboratory of Geo-Energy, where he uses tools of theoretical and computational mechanics to investigate coupled problems of solid and fluid mechanics in geological faults and fractured rocks.
Bio Alexis Sáez obtained his bachelor and master degree in civil engineering at the University of Chile. He is currently a PhD student in the Laboratory of Geo-Energy, where he uses tools of theoretical and computational mechanics to investigate coupled problems of solid and fluid mechanics in geological faults and fractured rocks.
Practical information
- General public
- Free
Organizer
- MEGA.Seminar Organizing Committee