WELL OPERATION METHOD Russian patent published in 2016 - IPC E21B43/24 E21B43/16 E21B36/04 E21B43/22 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be used in operation of well for extraction of viscous oil emulsion. Method of well operation includes equipment of well tubing string (TS) with bottom-hole pump, filter, cable and capillary pipeline. Electric current is supplied via cable and a solvent and asphaltene-resin-paraffin deposits - ARPD, via capillary pipeline. Method comprises simultaneous recovery of products via tubing string by sucker rod pump. At wellhead in tubing string from below upwards is arranged: plug, heater, filter, bottom-hole pump. Cable is connected with heater, and on external surface of tubing string is secured by clamps cable to heater and capillary pipeline from wellhead to depth of above sucker rod pump with input into inner cavity of tubing string. Tubing string is placed in well so that heater is located from middle of formation to its bottom. For 24 hours before starting drive of sucker rod pump, heater is put into operation. Operating temperature of heater is not higher than 40 °C. After 24 hours is performed step-by-step operation of well bottom-hole pump drive starting with minimum number of swings and maximum stroke and with periodical stepped increase of temperature of heater at 20 °C, starting with temperature of 50 to 90 °C, and solvent supply with pump dosaging device via capillary pipeline with stepped reduction of solvent feeding at 5 l/h, starting from supply of 15-5 l/h, at each stage of operation under condition of achieving maximum volume of product.

EFFECT: higher efficiency of heating bottom-hole zone.

1 cl, 1 dwg, 1 tbl