FIELD: hydraulic engineering.
SUBSTANCE: invention relates to hydraulic engineering, in particular to submersible electric centrifugal pumps for oil production from wells with a high content of mineral salts and asphalt-resin-paraffin deposits in the stratum fluid. The electric centrifugal pump assembly consists of an electric motor, hydraulic protection and a centrifugal pump. Housings, heads, bases, nipples, impellers, guide apparata, radial bearings, flow path elements, filter elements are coated with a hydro-, oleophobic coating based on organofluorine compounds.
EFFECT: invention is aimed at increasing reliability and service life of the assembly in operating in wells with a high content of mineral salts and asphalt-resin-paraffin deposits due to the hydrophobic coating of parts.
13 cl, 7 dwg
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