Electrical submersible pump stage construction

Details Electrical submersible pump stage construction Electrical submersible pump stage construction

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 25/06 (2006.01) F04D 29/02 (2006.01) F04D 29/18 (2006.01) F04D 29/40 (2006.01)

Patent

CA 2594958

The proposed invention relates to electrical submersible pumps used for hydrocarbons production from oil wells. The pump stage operational life increases by enhancement of stage abrasion and erosion wear properties. The indicated goal is achieved by constructing the flow area of a submersible pump stage from separate segments manufactured from wear resistant material. Segments are retained in the stage construction through compression fit rings. Sleeve from plastically deformable material is installed between hub and segments and between ring and segments; segments side interference is constructed in form of shevron type face labyrinth seal; gasket with radial beams is placed between segments and hub and the beams quantity is equal to the segments quantity; bushing from wear resistant material is press fit into the diffuser hub.

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