Detection of flow-pathway structure upon pore-pressure distribution estimated from hydraulically induced micro-seismicity

T. Ito, K. Osada, Kazuo Hayashi

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Publication statusPublished - 2004 Jan 1
Event6th North America Rock Mechanics Symposium: Rock Mechanics Across Borders and Disciplines, NARMS 2004 - Houston, United States
Duration: 2004 Jun 52004 Jun 9

Conference

Conference6th North America Rock Mechanics Symposium: Rock Mechanics Across Borders and Disciplines, NARMS 2004
CountryUnited States
CityHouston
Period04/6/504/6/9

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology
  • Geophysics

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