Tertiary oil recovery combined with gas conversion process
AssigneeShell Oil Company
InventorsAlan John Parsley, Christiaan Stouthamer
Life of this patent
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Abstract
A process for the recovery of oil from a subsurface reservoir in combination with the production of liquid hydrocarbons from a hydrocarbonaceous stream involving: (i) separating an oxygen/nitrogen mixture into a stream enriched in oxygen and an oxygen depleted stream; (ii) partial oxidation of the hydrocarbonaceous feed at elevated temperature and pressure using enriched oxygen produced in step (i) to produce synthesis gas; (iii) converting synthesis gas obtained in step (ii) into liquid hydrocarbons; and (iv) recovering oil from a subsurface reservoir using at least part of the oxygen depleted gas stream produced in step (i).
Claims10
A process for the recovery of oil from a subsurface reservoir in combination with the production of liquid hydrocarbons from a hydrocarbonaceous feed stream comprising:
- (i) separating an oxygen/nitrogen mixture into a stream enriched in oxygen and an oxygen depleted stream;
- (ii) partially oxidating the hydrocarbonaceous feed at elevated temperature and pressure using enriched oxygen produced in step (i) to produce synthesis gas;
- (iii) converting synthesis gas obtained in step (ii) into liquid hydrocarbons;
- and
- (iv) recovering oil from a subsurface reservoir using at least part of the oxygen depleted gas stream produced in step (i).
Dependencies are inferred from the claim text.