FIELD: oil and gas production.
SUBSTANCE: procedure consists in heating raw stock to 440-450°C, in successive treatment of stock with air and in thermal cracking. Further light oil products and gaseous hydrocarbons are separated from produced bitumen. Before treatment of raw stock air is heated to temperature of stock. Flow rate of air amounts to 60-70 m3/t of stock; average time of raw stock treatment with air is 10-15 min. As raw stock there can be used oil tar; in this case it is processed at pressure 3-4 at, or black oil treated at pressure 6-10 at.
EFFECT: accelerated production of bitumen with simultaneous production of light oil products; considerably reduced dimensions of used equipment at comparable volumes of bitumen production.
3 cl, 4 ex
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Authors
Dates
2011-08-27—Published
2010-03-26—Filed