Concept

Induced seismicity

Related publications (57)

Experimental studies of hydro-mechanical couplings in Enhanced Geothermal Reservoirs

Enhanced Geothermal Systems (EGS) allow for worldwide geothermal electricity production. They target deep (3-5 km), fractured rock reservoirs whose permeability is artificially increased through hydraulic stimulations (fluid injections). The injections mod ...

EPFL2020

Mechanical behaviour of fluid lubricated faults during earthquake nucleation and propagation

Chiara Cornelio

The need for new forms of energy, and in particular the need for renewable and clean ones, led to develompment of Enanched Geothermal Systems, where the well designed stimulation of a geothermal reservoir is the key parameter for the safe development of th ...

EPFL2020

Role of stress field orientation on fault reactivation

Hydraulic fracturing involves injecting water under high pressure into the bedrock formation to enhance permeability of deep geo-reservoirs. Faults are planar discontinuities cutting the reservoirs, and their reactivation during injection depends of their ...

2020

Fluid injection driven, a-seismic fracture growth with remote nucleation on heterogeneous fault

Brice Tanguy Alphonse Lecampion, Andreas Möri, Federico Ciardo

Induced (and triggered) seismicity following fluid injections at depth, is governed by pore pressure diffusion. Interestingly, recent studies yield unrealistically large values of diffusivity in order to explain the timing of the generated seismicity. We i ...

2019

Induced seismicity in geologic carbon storage

Lyesse Laloui, Victor Vilarrasa Riano

Geologic carbon storage, as well as other geo-energy applications, such as geothermal energy, seasonal natural gas storage and subsurface energy storage imply fluid injection and/or extraction that causes changes in rock stress field and may induce (micro) ...

Copernicus GmbH2019

From aseismic to seismic slip during fluid pressure oscillations on laboratory fault

Marie Estelle Solange Violay, François Xavier Thibault Passelègue, Carolina Giorgetti, Corentin Jean-Marie Rémi Noël

A rise in fluid pressure decreases the effective normal stress acting on faults, facilitating reactivation. Within the upper crust, fluid pressure cyclic perturbations are common. They can originate from natural causes such as oceanic tides, seasonal hydro ...

2019

Fault reactivation during fluid pressure oscillations: transition from stable to unstable slip

Marie Estelle Solange Violay, François Xavier Thibault Passelègue, Carolina Giorgetti, Corentin Jean-Marie Rémi Noël

High‐pressure fluid injection in deep geo‐reservoirs can induce earthquakes. Recent observations suggest that cyclic injections might trigger less seismicity than monotonic injections. Here, we report triaxial laboratory experiments conducted on faulted qu ...

2019

Effect of fluid viscosity on fault reactivation and co‐seismic weakening

Marie Estelle Solange Violay, François Xavier Thibault Passelègue, Chiara Cornelio

High‐viscosity fluids are often used during hydraulic fracking operations in geo‐reservoirs. Here, we performed dedicated experiments to study the influence of fluid viscosity on fault reactivation and associated induced earthquakes. Experiments were condu ...

2019

Energy Geotechnics

Lyesse Laloui, Alessio Ferrari

This book collects selected full papers presented at the International Symposium on Energy Geotechnics 2018 (SEG-2018), held on 25th – 28th September 2018, at the Swiss Federal Institute of Technology in Lausanne (EPFL). It covers a wide range of topics in ...

Springer, Cham2018

Reservoir stimulation’s effect on depletion-induced seismicity

Lyesse Laloui, Barnaby Padraig Fryer, Gunter Siddiqi

Depletion-induced seismicity can pose a problem in some fluid-producing subsurface reservoirs, in some cases requiring production rate control in order to limit the seismicity. This study investigates the use of reservoir stimulation to reduce the depletio ...

2018

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