FIELD: engines and pumps.
SUBSTANCE: present invention concerns an artificial lifting system comprising a progressive cavity motor for extracting hydrocarbons. In the system according to the invention, a fluid stored at the surface is injected by means of a pump towards the progressive cavity motor, located in the subsoil. There are circle holes located in the subsoil. They allow the passage of fluid transmitted to a progressive cavity pump towards the surface. Device has a main axis. It is connected to a flexible axis, connected by its other end to the rotor of the motor. Lower end of the motor rotor is coupled with the second flexible axis, the lower end of which is in turn connected to the rotor of the screw pump.
EFFECT: higher reliability.
8 cl, 4 dwg
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