FIELD: engines and pumps.
SUBSTANCE: group of inventions relates to arrangement of rotary pump and rotary pump unit. Rotary pump assembly 22 comprises drive mechanism including submersible electric motor 24 attached to lower end of tubing string. Submersible electric motor 24 is a motor with permanent magnet. Rotary pump 22 is installed in tubing string 40 and above drive mechanism. Rotary pump 22 receives working power from drive mechanism. Rotary pump 22 is made with possibility of disconnection from drive mechanism and extraction from well through tubing string 40 without disconnection of drive mechanism from tubing string 40. To lower end of drive mechanism is attached sensor.
EFFECT: group of inventions is aimed at safety of power cable and other control lines when extracting submersible equipment.
9 cl, 3 dwg
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