Comparison of Publicly Available Methodologies for Development of Geologic Storage Estimates for Carbon Dioxide in Saline Formations
Angela Goodman, Grant Bromhal, Brian Strazisar, Traci Rodosta, William F. Guthrie, Doug Allen, George Guthrie
Carbon dioxide storage resource estimates are compared by applying several commonly used methods to general saline formation data sets to assess the impact that the choice of method has on the results. Methods applied include those by 1) ministerial-level international climate change initiatives - the Carbon Sequestration Leadership Forum; 2) United States government agencies - U.S. Department of Energy-National Energy Technology Laboratory and United States Geological Survey; and 3) the peer-reviewed scientific community - Szulczewski et al. (2012) and Zhou et al. (2008). Methods have been developed to provide storage-resource estimates originating with efforts as early as 1993. Prospective estimates of CO2 storage resource for application to saline formations at the national, regional, and basin scale are required to assess the potential for carbon capture, utilization, and storage (CCUS) technologies to reduce CO2 emissions. Both private and public entities worldwide rely on CO2 storage-resource estimates for broad energy-related government policy and business decisions. As prospective estimates, they embody inherent uncertainties arising from simplifying assumptions and data limitations pertaining to subsurface geology. Nevertheless, they provide important bounds for energy planning at the national and regional levels. A statistical analysis revealed that the uncertainty in the underlying parameters of the general saline formation data sets has a much greater impact on overall estimates of CO2 storage resource than the choice of method does, especially within subsets of methods defined by their boundary assumptions.
, Bromhal, G.
, Strazisar, B.
, Rodosta, T.
, Guthrie, W.
, Allen, D.
and Guthrie, G.
Comparison of Publicly Available Methodologies for Development of Geologic Storage Estimates for Carbon Dioxide in Saline Formations, International Journal of Greenhouse Gas Control, [online], https://doi.org/10.1016/j.ijggc.2013.07.016
(Accessed June 18, 2021)