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US 2026/0016019 A1Published application
Artificial lift pump
AssigneeSchlumberger Technology Corporation
InventorRaju Ekambaram
Life of this patent
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Abstract
A pump comprising a plurality of impellers stacked on top of each other via a pump shaft, a diffuser corresponding to each impeller, a body housing the impellers, the diffusers, and the pump shaft, and a protector thrust bearing at one end of the pump shaft.
Claims20
A pump for pumping fluid, the pump comprising:
- a plurality of impellers stacked on top of each other via a pump shaft;
- a diffuser corresponding to each impeller;
- a body housing the plurality of impellers, each diffuser corresponding to each impeller, and the pump shaft;
- and
- a protector thrust bearing at a first end of the pump shaft.
2 more elements
An electrical submersible pump (ESP), the ESP comprising:
- a plurality of impellers;
- a plurality of diffusers corresponding to each of the plurality of impellers;
- a pump shaft connecting the plurality of impellers;
- a protector thrust bearing at a bottom end of the pump shaft;
- and
- a clearance or spring at a top end of the pump shaft configured to allow limited impeller movement during stage deflection in order to reduce thrust transfer.
3 more elements
A method of reducing wear in a pump, the method comprising:
- stacking a plurality of impellers on a pump shaft;
- providing a diffuser corresponding to each impeller;
- housing the plurality of impellers, each corresponding diffuser, and the pump shaft in a body;
- providing a protector thrust bearing at one end of the pump shaft;
- and
- providing a clearance or spring at the other end of the pump shaft to allow for impeller float during deflection.
3 more elements
Dependencies are inferred from the claim text.