FIELD: oil industry.
SUBSTANCE: invention can be used to prevent formation and removal of asphalt, resin and paraffin deposits (ARPD) during oil production. A submersible pump is lowered into the well to the calculated depth on the main lift pipes, in which, at the depth of the beginning of crystallization of ARPD, an additional lift string is coaxially installed, fixed at the wellhead fittings, and fluids are pumped to the surface through the annular space of the lift pipes. During the pumping process, pressure at the pump intake and flow rate of the well are monitored, and when the pressure at the pump intake increases with a simultaneous decrease in flow rate, they switch to the mode of periodic pumping of products with an increase in the rotation speed of the pump shaft. After stabilizing the pressure at the pump intake and increasing the well's flow rate, the well is transferred to constant pumping mode.
EFFECT: improved reliability of determining the increase in ARPD deposits in tubing above the permissible value, formation of deposits in downhole equipment is prevented, and the pumping mode of well production is optimized.
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