SUBMERSIBLE PUMPING UNIT Russian patent published in 2019 - IPC F04D13/10 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to oil-field equipment and can be used in pumping production of formation fluid from wells. Submersible pump unit consists of submersible valve motor (SVM), which is equipped with tubular shaft and pump, suspended to tubing string. Tubular shaft SVM is kinematically connected to pump shaft by means of splined coupling equipped with holes. In upper part of SVM, there is hydraulic protection equipped with flow channels. Upper end of tubular shaft of SVM is hydraulically communicated via flow channels of hydraulic protection with tubing string, and its lower end is connected through holes in splint coupling with pump discharge. Power supply is supplied by current-carrying cable, input of which is placed at top of SVM.

EFFECT: invention is aimed at simplifying the submersible pumping unit design and improving its reliability.

1 cl, 1 dwg