Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 27, 2009
Patent Application Number
10538418
Date Filed
December 12, 2003
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for increasing oil recovery from an oil reservoir by injection of gas into the reservoir, is described. The method comprises separation of air into an oxygen-rich fraction and a nitrogen-rich fraction, reformation of natural gas together with oxygen to produce a synthesis gas for production of methanol or other oxygenated hydrocarbons or higher hydrocarbons. The raw synthesis products and a waste gas from the synthesis are separated, and the nitrogen-rich fraction and at least a part of the waste gas are injected into the oil reservoir to increase the oil recovery from the reservoir. A plant for performing the method is also described.
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