Fluids play an important role in fault zone and earthquakes processes. Fluid pressure reduces the normal effective stress, reducing the frictional strength of the fault and potentially triggering earthquake ruptures. Induced earthquake triggered by fluid injection in deep reservoir are direct evidence of the effect of fluid pressure on the fault strength. In addition, natural earthquake sequences are often associated with pressures overpressure at seismogenic depths. Although simple in theory, the mechanics of fluid induced earthquake is poorly constrained, and our ability to assess the seismic hazard associated with natural and induced events remains limited.
In this session, we invite novel contributions based on laboratory experiments, numerical modelling and field work (or a combination of these) covering (but not exclusive to) the following aspects of:
• Characterization and control of the induced seismicity risk.
• Long term processes (chemistry, fluids & mechanics) and their importance for the economics of deep reservoirs production.
• Thermo-hydro-mechanical couplings in reservoirs.
• Nucleation and propagation of fluid-induced ruptures
We particularly welcome contributions from early career scientists