Where DOE put their CO2 sequestration money

The recent Department of Energy grants for CO2 sequestration involve an array of projects including:

  • multiple projects assessing the properties of CO2 injection in gas shales,
  • characterizing well bores,
  • understanding CO2 trapping mechanisms,
  • assessing the effects of horizontal versus vertical drilling,
  • creating seals in flow pathways in various rock formations,
  • assessing leakage and migration properties of CO2 and brine particularly at the interfaces of varying materials,
  • multiple seismic tools for assessing the characteristics of reservoirs,
  • carbon-14 tracing of injections,
  • multiple computer modeling tools to assess CO2 plume migration,
  • assessing a new capillary trapping technique for reservoirs, and
  • assessing the storage of supercritical CO2.

These testing areas should be a good indication of what DOE views as some of the major challenges that need to be understood and overcome as the industry figures out how to securely store CO2 in geologic formations.