Caprock Integrity and Induced Seismicity from Laboratory and Numerical Experiments

Victor Vilarrasa, Roman Y. Makhnenko

Research output: Contribution to journalConference article

Abstract

CO2 leakage is a major concern for geologic carbon storage. To assess the caprock sealing capacity and the strength of faults, we test in the laboratory the rock types involved in CO2 storage at representative in-situ conditions. We use the measured parameters as input data to a numerical model that simulates CO2 injection in a deep saline aquifer bounded by a low-permeable fault. We find that the caprock sealing capacity is maintained and that, even if a fault undergoes a series of microseismic events or aseismic slip, leakage is unlikely to occur through ductile clay-rich faults.

Original languageEnglish (US)
Pages (from-to)494-503
Number of pages10
JournalEnergy Procedia
Volume125
DOIs
StatePublished - Jan 1 2017
EventEuropean Geosciences Union General Assembly 2017: Energy, Resources and the Environment (ERE): Meeting the Challenges of the Future - Vienna, Austria
Duration: Apr 23 2017Apr 28 2017

Keywords

  • CO leakage
  • CO storage
  • breakthrough pressure
  • fault reactivation
  • geomechanics
  • relative permeability
  • reservoir behavior

ASJC Scopus subject areas

  • Energy(all)

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