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U.S. Department of Energy
Office of Scientific and Technical Information

Reservoir heating with autoignitable oil to produce crude oil

Patent ·
OSTI ID:6079068
This technique for producing virgin crude oil by heating and fluid drive does not introduce the problem involved in steam or hot water injection. An autoignitable fuel is dispersed in the stratum in an amount to permit dispersion throughout the pattern to be produced. The fuel is dispersed by injecting a non-oxidizing gas into the stratum behind the oil until the desired dispersion is obtained. An OD2U-containing oxidizing gas is then injected into the stratum and into contact with the autoignitable fuel to raise the temperature of the stratum and the in-place crude oil from normal reservoir temperature to a level below the ignition temperature of the in-place crude oil. The oxidation rate of the fuel is controlled by regulating the injection rate of the oxidizing gas, by regulating the OD2U concentration in the oxidizing gas, and/or by diluting the autoignitable fuel with a petroleum oil having a considerably higher ignition point. (9 claims)
Assignee:
Phillips Petroleum Co.
Patent Number(s):
US 3363687
OSTI ID:
6079068
Country of Publication:
United States
Language:
English