DOWNHOLE FLUID INJECTIONS, CO2 SEQUESTRATION METHODS, AND HYDROCARBON MATERIAL RECOVERY METHODS

摘要

Downhole fluid injection systems (10) are disclosure that can include a first well (16) extending into a geological formation (12), 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.