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US 12,756,256 B2Granted
Tooling for encapsulated ESP stators
AssigneeSchlumberger Technology Corporation
InventorsWilliam Goertzen, Varun Vinaykumar Nyayadhish, Jason Holzmueller
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Abstract
An in-situ fiber reinforced composite tooling for encapsulated ESP stators is provided. The tooling forms a cap or cover for the end turns of the stator windings.
Claims20
A stator for an electric submersible pump, the stator comprising:
- electrically conductive windings having an end turns area;
- a first material disposed about at least the end turns area of the electrically conductive windings;
- and
- a cover comprising a second material covering a portion of the first material disposed about at least the end turns area of the electrically conductive windings, wherein the first material and the second material are different from one another, and the second material comprises at least one of:
- a compatibilizing agent in the second material, the compatibilizing agent configured to enhance compatibility of the cover with the first material;
- or
- a compatibilizing surface treatment on the cover, the compatibilizing surface treatment configured to enhance compatibility of the cover with the first material.
4 more elements
A cover configured for use in a stator of an electric submersible pump, the cover comprising:
- a fiber reinforced epoxy or phenolic compound, wherein the cover comprises at least one of:
- a compatibilizing agent in the fiber reinforced epoxy or phenolic compound, the compatibilizing agent configured to enhance compatibility of the cover with an encapsulating resin that encapsulates stator windings in an end turns area;
- or
- a compatibilizing surface treatment on the cover, the compatibilizing surface treatment configured to enhance compatibility of the cover with the encapsulating resin.
1 more element
A method of manufacturing an electric submersible pump, the method comprising:
- manufacturing a stator of the electric submersible pump, wherein manufacturing the stator comprises:
- forming a cover for an end turns area of the stator, the cover comprising a fiber reinforced epoxy or phenolic compound, wherein forming the cover comprises at least one of:
- including a compatibilizing agent in the fiber reinforced epoxy or phenolic compound, the compatibilizing agent configured to enhance compatibility of the cover with an encapsulating resin;
- or
- forming a compatibilizing surface treatment on the cover, the compatibilizing surface treatment configured to enhance compatibility of the cover with the encapsulating resin;
- encapsulating stator windings in the end turns area with the encapsulating resin;
- and
- curing the encapsulating resin using the cover as a mold to create a rotor space circumferentially within the stator;
- and
- inserting a rotor within the rotor space.
7 more elements
Dependencies are inferred from the claim text.