FIELD: oil and gas industry.
SUBSTANCE: invention is intended for use in oil industry and can be used for diagnostics of location of asphalt-resin-paraffin deposits along length of tubing string. Inside the flow column of the well equipped with electric-centrifugal pump, temperature sensors on a stationary basis are uniformly arranged along the length of flow pipes from the mouth to the deep pump along the axial line of pipes. Temperature gauges are used to periodically plot graphs of temperature dependence of gas-liquid mixture on distance of temperature sensor along length of flow string from wellhead. Based on the detected difference of measured dependences towards the temperature rise, formation of deposits in time is determined in a certain part of the flow column.
EFFECT: increased efficiency of well treatment due to possibility of targeted application of sediment removal method, reduced consumption of solvent, heat and electric energy.
1 cl, 2 dwg
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