FIELD: oil production, particularly methods or apparatus for cleaning boreholes or wells.
SUBSTANCE: device comprises elongated thermal radiator arranged in flow string and connected to elongated load-bearing member. The first ends of thermal radiator and load-bearing member are brought out to day surface where thermal radiator is linked to heat power source. Load-bearing member is connected to reciprocating mechanism. The second free end of thermal radiator is connected to load-bearing member. The thermal radiator length may be equal or less than that of load-bearing member. Lower end of thermal radiator is arranged in flow string below lower level of hydrate and paraffin deposit. At least two mechanical scrapers are installed on thermal radiator. The scrapers are spaced apart a distance of not less than 0.25 m and not more than thermal radiator travel length.
EFFECT: extended range of device application to prevent and eliminate paraffin and hydrate deposits and plugs.
14 cl, 2 ex, 2 dwg
