In order to use micro-seismic data for understanding flow-pathway structure in subsurface, we considered in detail the process of pressure propagation to cause micro-seismicity in hydraulic stimulation. Then we found that pore pressure distribution along flow-pathway and its variation with time could be estimated by analyzing the data of micro-seismicity. Furthermore, the estimated pore pressure allows us to estimate the location of flow-pathways and the distribution of hydraulic conductivity along them. To do this, we assume an appropriate model of flow-pathway structure and adjust it as the pore pressure distribution computed by the model agrees well with that estimated from micro-seismicity. Finally, by a numerical experiment for one dimensional case, we demonstrated how we can optimize the model of flow-pathway according to the input data of pore pressure.
|Publication status||Published - 2004 Jan 1|
|Event||6th North America Rock Mechanics Symposium: Rock Mechanics Across Borders and Disciplines, NARMS 2004 - Houston, United States|
Duration: 2004 Jun 5 → 2004 Jun 9
|Conference||6th North America Rock Mechanics Symposium: Rock Mechanics Across Borders and Disciplines, NARMS 2004|
|Period||04/6/5 → 04/6/9|
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology