FIELD: oil production. SUBSTANCE: two different physical fields are used to treat subsequently and in series the flow of the water being pumped in the injection wells. Various combinations are used to treat the water such as electrical, magnetic fields, and pressure pulses of not less than 4 MPa value. Intensities of the electric and magnetic fields are 0.2 - 2.0 V/m and 20,000 - 50,000 A/m. EFFECT: increased capacity of the injection wells. 3 cl, 1 tbl, 3 dwg
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