A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Effect of Varying Fluid Injection Activities on Induced Earthquakes through Joint-Enriched Finite Element Analyses
Subsurface fluid injection into sedimentary reservoirs is potentially responsible for the sharply rising number of seismic events in oil and gas production regions. To assess the effects of fluid injection activities on fault reactivation and slip, we construct a hydro-mechanical joint-enriched finite element model, comprised of a multi-layer sequence embedded with a favorably-oriented normal fault. We consider six injection scenarios to address the effects of anthropogenic parameters including injection rate and injection volume on the stability of seismogenic fault. Simulation results demonstrate that maximum excess pore pressure and stress perturbation are highly dependent on the injection strategy. The injection program with faster initial rate may induce early fault reactivation. Higher injection volume also could result in a higher potential of fault reactivation and slip. The incorporation of joint elements into the model allows the capture of progressive fault damage under hydro-mechanical couplings. This study highlights the importance of appropriately-designed injection well operations in minimizing the likelihood of induced seismic events.
The Effect of Varying Fluid Injection Activities on Induced Earthquakes through Joint-Enriched Finite Element Analyses
Subsurface fluid injection into sedimentary reservoirs is potentially responsible for the sharply rising number of seismic events in oil and gas production regions. To assess the effects of fluid injection activities on fault reactivation and slip, we construct a hydro-mechanical joint-enriched finite element model, comprised of a multi-layer sequence embedded with a favorably-oriented normal fault. We consider six injection scenarios to address the effects of anthropogenic parameters including injection rate and injection volume on the stability of seismogenic fault. Simulation results demonstrate that maximum excess pore pressure and stress perturbation are highly dependent on the injection strategy. The injection program with faster initial rate may induce early fault reactivation. Higher injection volume also could result in a higher potential of fault reactivation and slip. The incorporation of joint elements into the model allows the capture of progressive fault damage under hydro-mechanical couplings. This study highlights the importance of appropriately-designed injection well operations in minimizing the likelihood of induced seismic events.
The Effect of Varying Fluid Injection Activities on Induced Earthquakes through Joint-Enriched Finite Element Analyses
Zeppilli, Danilo (author) / Pouya, Amade (author) / Zhu, Cheng (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 266-274
2019-03-21
Conference paper
Electronic Resource
English
| British Library Conference Proceedings | 2019
Earthquakes Induced by Underground Fluid Injection
| NTIS | 1970
A Finite Element Formulation of the Tank-Fluid Response to Earthquakes
| British Library Conference Proceedings | 1999
Significance for secure CO2 storage of earthquakes induced by fluid injection
| DOAJ | 2014