FIELD: oil production. SUBSTANCE: heavy oil is extracted from tar sands with alfa-olefin mixture having boiling range 70-360 C at 20-40 C for 30 min. Alfa-olefins are produced from any-type polyethylene including polyethylene waste. In the case oil content in sands is 3-10%, olefin mixture amount is 25-40 wt %. EFFECT: reduced cost of oil extraction. 3 cl, 2 tbl
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Authors
Dates
1997-02-27—Published
1993-05-21—Filed