Skip to Main content Skip to Navigation
Theses

Numerical modeling of hydraulic stimulation and induced seismicity in deep geothermal reservoirs

Abstract : The development and the exploitation of deep geothermal reservoirs are usually accompanied with induced seismicity - an unwanted side effect. This research is focused on using numerical simulations to investigate the propagation of hydraulic fractures and the reactivation of pre-existing faults during the hydraulic stimulation of the reservoirs in an effort to better understand the fractured reservoir behavior and to reduce the potential risk of induced seismicity.The induced seismicity is studied first from the standpoint of using the law of energy conservation in order to explain the mechanism of generating elastic waves from rock failure. Then an approximate approach is proposed to calculate the peak ground accelerations (PGAs) that are induced by the fault slip. The computed PGAs on ground surface are used to assess the human perception of the seismic waves and the damage potential to structures.
Complete list of metadatas

https://pastel.archives-ouvertes.fr/tel-02309181
Contributor : Abes Star :  Contact
Submitted on : Wednesday, October 9, 2019 - 9:33:07 AM
Last modification on : Monday, April 6, 2020 - 6:31:58 PM

File

2019PSLEM012_archivage.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02309181, version 1

Citation

Dac Thuong Ngo. Numerical modeling of hydraulic stimulation and induced seismicity in deep geothermal reservoirs. Applied geology. PSL Research University, 2019. English. ⟨NNT : 2019PSLEM012⟩. ⟨tel-02309181⟩

Share

Metrics

Record views

246

Files downloads

149