Abrasion-resistant thrust ring for use with a downhole electrical submersible pump
AssigneeHalliburton Energy Services, Inc.
InventorDezhi Zheng
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Abstract
A multi-stage pump stack is disclosed herein wherein the multi-stage pump stack comprises a shaft, a diffuser disposed about the shaft, an impeller disposed within the diffuser, a first thrust ring disposed adjacent to the impeller, and a second thrust ring disposed adjacent to the diffuser. The first and second thrust rings are comprised of a material with a low friction coefficient. Systems and methods for distributing forces in the multi-stage pump stack are also disclosed herein.
Claims20
A multi-stage pump stack comprising:
- a shaft;
- a diffuser disposed about the shaft;
- an impeller disposed within the diffuser;
- a first thrust ring disposed adjacent to the impeller;
- and
- a second thrust ring disposed adjacent to the diffuser,
- wherein the first and second thrust rings are comprised of a material with a low friction coefficient.
A multi-stage pump stack comprising:
- a shaft;
- a first diffuser disposed about the shaft;
- a first impeller disposed within the first diffuser;
- a first thrust ring disposed adjacent to the first impeller and comprised of a material with a low friction coefficient;
- a second thrust ring disposed adjacent to the first diffuser and comprised of a material with a low friction coefficient;
- a second diffuser disposed about the shaft and adjacent to the first diffuser;
- and
- a second impeller disposed within the second diffuser.
A method for distributing force in a multi-stage pump stack comprising:
- assembling a stage comprising an impeller and a diffuser, wherein the impeller is disposed within the diffuser;
- rotating the impeller and a first thrust ring, wherein the first thrust ring is disposed adjacent to the impeller;
- maintaining the diffuser and a second thrust ring in a stationary position, wherein the second thrust ring is disposed adjacent to the diffuser,
- wherein the first and second thrust rings are comprised of a material with a low friction coefficient.
Dependencies are inferred from the claim text.