Patent ID: 11859474
Assignee: UPWING ENERGY, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F  H | IPC E  F  H

Claim 6:
7. An artificial lift system comprising:
an electric machine configured to be positioned within a wellbore;
a housing configured to pressurize and isolate the electric machine from fluid within the wellbore;
a first lubrication circuit comprising a lubrication reservoir within the housing, the lubrication reservoir fluidically connected to the electric machine, the first lubrication circuit comprising a downhole lubrication pump connected to the lubrication reservoir and configured to provide a first lubricant to a first bearing within the electric machine;
a fluid rotor configured to move or be moved by fluid within the wellbore;
a magnetic coupling that couples the fluid rotor and a rotor of the electric machine to rotate in unison; and
a second lubrication circuit configured to provide a second lubricant to a second bearing supporting the fluid rotor, the second lubrication circuit comprising a topside lubrication pump.