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Air Injection Technique (LTO Process) for IOR from Light Oil Reservoirs: Oxidation
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1998
Year
Air Injection TechniqueEngineeringPetroleum Production EngineeringLight OilsFuel InjectionPetroleum RefiningChemical EngineeringPetroleum ChemistryPetroleum ProductionHeavy Oil RecoveryPetroleum Refining ProcessLto ProcessEnhanced Oil RecoveryLow Temperature OxidationChemical Enhanced Oil RecoveryEnvironmental EngineeringNorth SeaLight Oil ReservoirsEnhanced Oil ProductionPetroleum Engineering
Abstract The feasibility of air injection into deep light oil reservoirs in the North Sea and elsewhere has been investigated. The low temperature oxidation (LTO) process removes oxygen in the injected air, to produce displacement gas (mainly nitrogen) in the reservoir in order to achieve incremental IOR. Reaction and displacement studies on four light oils have been carried out at reservoir conditions. This has involved the high pressure oxidation tube facility at Bath University as well as a small high pressure isothermal reactor. This paper presents preliminary results on the reactivity of the oils studied in terms of oxygen consumption rate at reservoir temperature, and the oil recovery under low rate air injection. P. 479