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Title: Downhole fluid injection systems, CO2 sequestration methods, and hydrocarbon material recovery methods

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 CO2/H2O-emulsion into the surrounding geological formation. CO2 sequestration methods are provided that can include exposing a geological formation to a liquid CO2/H2O-emulsion to sequester at least a portion of the CO2 from the emulsion within the formation. Hydrocarbon material recovery methods are provided that can include exposing a liquid CO2/H2O-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.
Inventors:
;
Issue Date:
OSTI Identifier:
1202360
Assignee:
Battelle Memorial Institute (Richland, WA) ORO
Patent Number(s):
9,091,156
Application Number:
13/410,696
Contract Number:
AC05-76RL01830
Resource Relation:
Patent File Date: 2012 Mar 02
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES

Other works cited in this record:

Water reactivity in the liquid and supercritical CO2 phase: Has half the story been neglected?
journal, February 2009

CO2-H2O mixtures in the geological sequestration of CO2. I. Assessment and calculation of mutual solubilities from 12 to 100°C and up to 600 bar
journal, August 2003
  • Spycher, Nicolas; Pruess, Karsten; Ennis-King, Jonathan
  • Geochimica et Cosmochimica Acta, Vol. 67, Issue 16, p. 3015-3031
  • DOI: 10.1016/S0016-7037(03)00273-4

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