Magnetic supporting of thrust load for downhole-type artificial lift system
AssigneeUpwing Energy, LLC
InventorPatrick McMullen
Life of this patent
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Abstract
During rotation of a shaft of a downhole-type wellbore system, a first signal corresponding to an axial position of the rotating shaft is transmitted by a sensor. The shaft is axially levitated by a plurality of magnetic thrust bearings. A controller determines an amount of axial force to apply to the rotating shaft to maintain axial levitation of the rotating shaft based on the first signal. The controller transmits a second signal corresponding to the determined amount of axial force to the plurality of magnetic thrust bearings. The plurality of magnetic thrust bearings applies the amount of axial force on the rotating shaft to maintain the axial levitation of the rotating shaft based on the second signal.
Claims9
A method comprising:
- during rotation of a shaft of a downhole-type wellbore system, the shaft axially levitated by a plurality of magnetic thrust bearings,
- transmitting, by a sensor, a first signal corresponding to an axial position of the rotating shaft;
- determining, by a controller, an amount of axial force to apply to the rotating shaft to maintain axial levitation of the rotating shaft based on the first signal;
- transmitting, by the controller, a second signal that corresponds to the determined amount of axial force to the plurality of magnetic thrust bearings;
- and
- applying, by the plurality of magnetic thrust bearings, the amount of axial force on the rotating shaft to maintain the axial levitation of the rotating shaft based on the second signal.
Dependencies are inferred from the claim text.