METHOD AND SYSTEM FOR DEPLOYMENT OF ELECTRIC LOADING DEVICE IN WELL SHAFT Russian patent published in 2019 - IPC E21B47/12 H01B7/20 

FIELD: pumps.

SUBSTANCE: invention relates to electric submersible pumps and can be used for arrangement and supply of electric energy to electric motor of submersible pump in well. In particular, the method of deploying a pumping system in a wellbore including connecting a pumping system with one end sealed with a cable tube is disclosed. Cable is pulled into the well shaft drilled through the underground fluid producing formation. Tube-sealed cable has an outer tube extending substantially continuously from its end connected to the pump system to the ground end of the cable. Outer tube is made of material selected to exclude fluid from entering the wellbore from the inner side of the outer tube. Cable includes at least one electrical conductor located inside outer tube, wherein normalized load current of at least one electrical conductor is selected such that substantially continuous electric current picked up by the electric load device exceeds the rated current of at least one electrical conductor.

EFFECT: technical result is simplification of lowering pump into well with simultaneous increase of strength of power cable.

31 cl, 7 dwg