Patent Number: 7,100,692

Title: Tertiary oil recovery combined with gas conversion process

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).

Inventors: Parsley; Alan John (Perth, AU), Stouthamer; Christiaan (Perth, AU)

Assignee: Shell Oil Company

International Classification: E21B 43/16 (20060101); E21B 43/18 (20060101)

Expiration Date: 9/05/02018