FIELD: petroleum industry.
SUBSTANCE: invention relates to the field of borehole petroleum production and can be used in petroleum fields where heavy components of petroleum and other associated substances, including asphalt-resin-paraffin deposits, are formed and accumulated in the lifting tubing strings of boreholes. Method for preventing the formation of asphalt-resin-paraffin deposits includes loweing a pump on the tubing string into the borehole. Couplings or branch pipes made of a material with a magnetic field induction value of 50 nT or less are lowered on the tubing string at the locations of magnetic field induction values above 290 nT.
EFFECT: method is more efficient due to the created magnetic field induction with minimal values in the tubing string.
1 cl, 6 dwg
