| Abstract: A method for geo-sequestration of a carbon dioxide includes selection of
a target water-laden geological formation with low-permeability
interbeds, providing an injection well into the formation and injecting
supercritical carbon dioxide (SC--CO.sub.2) into the injection well under
conditions of temperature, pressure and density selected to cause the
fluid to enter the formation and splinter and/or form immobilized ganglia
within the formation. This process allows for the immobilization of the
injected SC--CO.sub.2 for very long times. The dispersal of scCO2 into
small ganglia is accomplished by alternating injection of SC--CO.sub.2
and water. The injection rate is required to be high enough to ensure the
SC--CO.sub.2 at the advancing front to be broken into pieces and small
enough for immobilization through viscous instability. |
| Filed: 7/25/2013 |
| Application Number: 13/951036 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Attribution for Derwent World Patents Index Records published on Sandia ® Clarivate. All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |