Skip to Main content Skip to Navigation
Conference papers

Moment-Frequency distribution as a constraint for hydro-mechanical modelling in fracture networks

Abstract : Shear re-activation of deep fractured rocks for EGS purposes is accompanied by microseismicity. From our numerical hydro-mechanical coupling in discrete fracture network models which incorporates stress drops with known amplitudes and neglects the influence of static stress changes, it happens that the moments of induced seismic events are scaling with the power 3 of the fracture size. It follows that the value of the slope of the moment-frequency diagram better known as the b'value obtained from numerical experiments correlates with the exponent of the power law distribution used for the fracture size generation. Our suggestion is therefore to use these diagrams for constraining the fracture network generation process
Document type :
Conference papers
Complete list of metadata

Cited literature [12 references]  Display  Hide  Download

https://hal-mines-paristech.archives-ouvertes.fr/hal-00580741
Contributor : Dominique Bruel <>
Submitted on : Tuesday, March 29, 2011 - 10:32:43 AM
Last modification on : Thursday, September 24, 2020 - 4:34:10 PM
Long-term archiving on: : Thursday, June 30, 2011 - 2:37:53 AM

Files

db4pp-ISRM2007.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00580741, version 1

Citation

Dominique Bruel, Jean Charlety. Moment-Frequency distribution as a constraint for hydro-mechanical modelling in fracture networks. International Society for Rock Mechanics. 11th ISRM Congress, Jul 2007, Portugal. pp.343,346. ⟨hal-00580741⟩

Share

Metrics

Record views

340

Files downloads

195