Simulating Micro-Seismic Activity With a Discrete Geomechanical Model

Francois Bonneau and Margaux Raguenel and L. Scholt├Ęs and Paul Cupillard. ( 2017 )
in: 79th EAGE Conference & Exhibition, EAGE, Paris, France

Abstract

Acoustic emissions are powerful data for characterizing the deformation of geological media. Nevertheless, there is still a lack of knowledge to understand the link between the mechanical stimulation of the medium and the recorded acoustic emissions. In this paper, we open the path for a tool that extracts and analyzes acoustic emissions from geomechanical simulations performed with a discrete element method. We discuss the capability of our tool by comparing statistics of our synthetic seismic activity with classical scaling laws observed on natural seismic catalogs. Analyses are performed on intact rock samples. We retrieve consistent spatial correlations of micro-seismic events and consistent $b-values$. However, fitting Omori's law is more challenging.

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BibTeX Reference

@INPROCEEDINGS{bonneauEAGE2017,
    author = { Bonneau, Francois and Raguenel, Margaux and Scholt├Ęs, L. and Cupillard, Paul },
     title = { Simulating Micro-Seismic Activity With a Discrete Geomechanical Model },
 booktitle = { 79th EAGE Conference & Exhibition },
      year = { 2017 },
  location = { Paris, France },
organization = { EAGE },
       doi = { 10.3997/2214-4609.201701223 },
  abstract = { Acoustic emissions are powerful data for characterizing the deformation of geological media. Nevertheless, there is still a lack of knowledge to understand the link between the mechanical stimulation of the medium and the recorded acoustic emissions. In this paper, we open the path for a tool that extracts and analyzes acoustic emissions from geomechanical simulations performed with a discrete element method. We discuss the capability of our tool by comparing statistics of our synthetic seismic activity with classical scaling laws observed on natural seismic catalogs. Analyses are performed on intact rock samples. We retrieve consistent spatial correlations of micro-seismic events and consistent $b-values$. However, fitting Omori's law is more challenging. }
}