FIELD: oil production.
SUBSTANCE: methods for the production of heavy hydrocarbon raw materials, such as high-viscosity oils and natural bitumens using water vapor injection into the reservoir. Production stimulation is ensured by injection of a composition consisting of an oil-soluble catalyst, a hydrogen donor solvent and an aqueous alkali solution. The composition contains, wt.%: an oil-soluble catalyst based on transition metal tallates Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo - 1-30; donor-hydrogen solvent nefras C4-155/205 - 98-40; 20 wt.% solution of NaOH in water - 1-30.
EFFECT: increasing the efficiency of upgrading and conversion of heavy oils, the possibility of neutralizing hydrogen sulfide in reservoir conditions through the combined use of an oil-soluble catalyst, a hydrogen donor solvent and an aqueous alkali solution under thermal steam action.
1 cl, 2 dwg, 9 ex
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