Mahendra K. Verma Emil D. Attanasi Ricardo A. Olea Madalyn S. Blondes Philip Freeman Sean T. Brennan Matthew D. Merrill Hossein Jahediesfanjani Jacqueline Roueche Celeste D. Lohr Peter D. Warwick 2017 <p><span>The U.S. Geological Survey (USGS) has developed an assessment methodology for estimating the potential incremental technically recoverable oil resources resulting from carbon dioxide-enhanced oil recovery (CO</span>₂<span>-EOR) in reservoirs with appropriate depth, pressure, and oil composition. The methodology also includes a procedure for estimating the CO</span>₂<span><span>&nbsp;</span>that remains in the reservoir after the CO</span>₂<span>-EOR process is complete. The methodology relies on a reservoir-level database that incorporates commercially available geologic and engineering data. The mathematical calculations of this assessment methodology were tested and produced realistic results for the Permian Basin Horseshoe Atoll, Upper Pennsylvanian-Wolfcampian Play (Texas, USA). The USGS plans to use the new methodology to conduct an assessment of technically recoverable hydrocarbons and associated CO</span>_2&nbsp;<span>sequestration resulting from CO</span>₂<span>-EOR in the United States.</span></p> application/pdf 10.1016/j.egypro.2017.03.1847 en Elsevier A database and probabilistic assessment methodology for carbon dioxide enhanced oil recovery and associated carbon dioxide retention in the United States article