The Effect of Varying Fluid Injection Activities on Induced Earthquakes through Joint-Enriched Finite Element Analyses

Danilo Zeppilli, Amade Pouya, Cheng Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
EditorsChristopher L. Meehan, Sanjeev Kumar, Miguel A. Pando, Joseph T. Coe
PublisherAmerican Society of Civil Engineers (ASCE)
Pages266-274
Number of pages9
EditionGSP 308
ISBN (Electronic)9780784482100
ISBN (Print)9780784482100
DOIs
StatePublished - 2019
Event8th International Conference on Case Histories in Geotechnical Engineering: Earthquake Engineering and Soil Dynamics, Geo-Congress 2019 - Philadelphia, United States
Duration: Mar 24 2019Mar 27 2019

Publication series

NameGeotechnical Special Publication
NumberGSP 308
Volume2019-March
ISSN (Print)0895-0563

Conference

Conference8th International Conference on Case Histories in Geotechnical Engineering: Earthquake Engineering and Soil Dynamics, Geo-Congress 2019
Country/TerritoryUnited States
CityPhiladelphia
Period3/24/193/27/19

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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