Bellows system for electrical submersible pump
AssigneeHalliburton Energy Services, Inc.
InventorsSteven Pyron, Matthew Thomas King, Bryan Coates
Life of this patent
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Abstract
A bellows system for an electrical submersible pump includes a housing, a bellows disposed within the housing, a stop having a through hole, and a chamber disposed on an opposite side of the stop from the housing. The bellows may include a first end secured to the housing and a second end configured to move within the housing. At a maximum extension of the bellows, the second end abuts the stop. The chamber is in fluid communication with an exterior of the housing via first openings.
Claims20
A bellows system for an electrical submersible pump, comprising:
- a housing;
- a bellows disposed within the housing, wherein the bellows comprises a first end secured to the housing and a second end configured to move within the housing;
- a cap secured to the housing, wherein the cap comprises a stop having a through hole, wherein at a maximum extension of the bellows the second end abuts the stop, and wherein first openings are formed in the cap;
- a tube extending from the stop away from the bellows, wherein the tube is concentric with the through hole, and wherein second openings are formed in the tube;
- and
- a chamber disposed on an opposite side of the stop from the housing, wherein the chamber is defined by the cap, and wherein the chamber is in fluid communication with an exterior of the housing via the first openings.
A method of assembling an electrical submersible pump, comprising:
- coupling a bellows system to an electric motor;
- coupling the electric motor to a seal section;
- coupling the seal section to an intake;
- and
- coupling the intake to a centrifugal pump,
- wherein the bellows system comprises:
- a housing;
- a bellows disposed within the housing, wherein the bellows comprises a first end secured to the housing and a second end configured to move within the housing;
- a cap secured to the housing, wherein the cap comprises a stop having a through hole, wherein at a maximum extension of the bellows the second end abuts the stop, and wherein first openings are formed in the cap;
- a tube extending from the stop away from the bellows, wherein the tube is concentric with the through hole, and wherein second openings are formed in the tube;
- and
- a chamber disposed on an opposite side of the stop from the housing, wherein the chamber is defined by the cap, and wherein the chamber is in fluid communication with an exterior of the housing via the first openings.
A method of lifting fluid in a wellbore, comprising:
- running an electrical submersible pump into a wellbore, wherein the electrical submersible pump comprises a bellows system, an electric motor coupled to the bellows system, a seal section coupled to the electric motor, an intake coupled to the seal section, and a centrifugal pump coupled to the intake;
- and
- providing electric power to the electric motor,
- wherein the bellows system comprises:
- a housing;
- a bellows disposed within the housing, wherein the bellows comprises a first end secured to the housing and a second end configured to move within the housing;
- a cap secured to the housing, wherein the cap comprises a stop having a through hole, wherein at a maximum extension of the bellows the second end abuts the stop, and wherein first openings are formed in the cap;
- a tube extending from the stop away from the bellows, wherein the tube is concentric with the through hole, and wherein second openings are formed in the tube;
- and
- a chamber disposed on an opposite side of the stop from the housing, wherein the chamber is defined by the cap, and wherein the chamber is in fluid communication with an exterior of the housing via the first openings.
Dependencies are inferred from the claim text.