| 摘要 |
A process for recovering hydrocarbons, e.g., crude petroleum, from a formation comprising: (a) injecting carbon dioxide into the formation; (b) shutting off the wells to the formation to allow the carbon dioxide to contact and disperse in the hydrocarbons in the formation; (c) recovering hydrocarbons from the formation; (d) repeating steps (a), (b) and (c) at least once; (e) injecting a carbonated aqueous liquid composition into the formation to drive the hydrocarbons toward the production well or wells and (f) recovering hydrocarbons from the formation.
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