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Downhole fluid injection systems, CO.sub.2 sequestration methods, and hydrocarbon material recovery methods

United States Patent

July 28, 2015
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Downhole fluid injection systems are provided that can include a first well extending into a geological formation, and a fluid injector assembly located within the well. The fluid injector assembly can be configured to inject a liquid CO.sub.2/H.sub.2O-emulsion into the surrounding geological formation. CO.sub.2 sequestration methods are provided that can include exposing a geological formation to a liquid CO.sub.2/H.sub.2O-emulsion to sequester at least a portion of the CO.sub.2 from the emulsion within the formation. Hydrocarbon material recovery methods are provided that can include exposing a liquid CO.sub.2/H.sub.2O-emulsion to a geological formation having the hydrocarbon material therein. The methods can include recovering at least a portion of the hydrocarbon material from the formation.
Schaef; Herbert T. (Richland, WA), McGrail; B. Peter (Richland, WA)
Battelle Memorial Institute (Richland, WA)
13/ 410,696
March 2, 2012
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Contract DE-AC0576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.