Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer

摘要

#CMT# #/CMT# Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean reservoir to facilitate hydrocarbon production comprises an air separation unit producing oxygen and nitrogen, an oxygen consumption unit, a carbon dioxide separation and/or purification unit and a device for mixing the nitrogen and carbon dioxide. #CMT# : #/CMT# An independent claim is also included for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean reservoir to facilitate hydrocarbon production by separating air into oxygen and nitrogen, passing the oxygen to an oxygen consumption unit, separating and/or purifying carbon dioxide and mixing the nitrogen and carbon dioxide. #CMT#USE : #/CMT# Producing a mixture of nitrogen and carbon dioxide for injection into a subterranean reservoir to facilitate hydrocarbon production. #CMT#CHEMICAL ENGINEERING : #/CMT# Preferred Installation: There is a nitrogen compressor upstream of the mixing device and a compressor for the mixture downstream of the mixing device. The oxygen consumption unit is a combustion unit. Preferred Process: The oxygen is less than 97% pure. The nitrogen is produced at a pressure below 6 bar.