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US 2026/0201902 A1Published application
Anti-swirl ribs for erosion resistance of electric submersible pumps
AssigneeSchlumberger Technology Corporation
InventorsRaju EKAMBARAM, Teng Fei WANG
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Abstract
Various anti-swirl ribs for improved erosion resistance of electrical submersible pump stages are provided. An electric submersible pump includes a plurality of stages, wherein each stage of the plurality of stages comprises: an impeller; a diffuser comprising a front seal cavity and a front seal area; and one or more ribs formed in or on a front seal cavity.
Claims20
An electric submersible pump comprising:
- a shaft coupled to a submersible motor;
- a plurality of stages disposed about the shaft and within an outer pump housing, wherein each stage of the plurality of stages induces and directs a flow of a fluid;
- each stage of the plurality of stages comprising:
- an impeller rotated by the shaft;
- a diffuser comprising a front seal cavity and a front seal area;
- a diffuser bowl;
- and
- one or more ribs formed in or on a front seal cavity.
5 more elements
An electric submersible pump comprising:
- an impeller;
- a diffuser having a front seal cavity at least partially defined by an upwardly facing surface of the diffuser;
- and
- one or more partial ribs disposed in the front seal cavity, the partial ribs extending less than an entire radial dimension of the front seal cavity.
1 more element
An electric submersible pump comprising:
- an impeller;
- a diffuser having an outer wall;
- and
- one or more ribs disposed on a radially inner surface of the outer wall of the diffuser.
1 more element
Dependencies are inferred from the claim text.