FIELD: oil and gas industry.
SUBSTANCE: reagent for oil production containing powdered polyacrylamide (PAA) treated with ionising irradiation contains powdered PAA with molecular weight of 14-25 mln. units and degree of hydrolysis of 20-30% treated with ionising irradiation with doze of 3-20kGy by accelerated electrons with energy of 5-10 MeV with compound containing additionally 5-20 wt % of PAA stabiliser weight - powder of aluminium sulphate or potash alum. Oil production technique that includes injection into the well of bank containing aqueous solution of sodium and calcium chloride with mineral content of 4-40 g/l or brine water with the same mineral content and the above reagent at concentration of 0.5-2.0 wt %.
EFFECT: increased temperature range of the reagent operability at maintenance of operating easiness.
2 cl, 4 tbl, 4 ex
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