Click-together Electrical Submersible Pump Assembly
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Solution Overview
Problem
Current electrical submersible pumps have a weak point in the splice and termination of power cables, requiring time-consuming assembly and increasing the risk of human error and costs, especially when deployed in well operations.
Innovation Solution
The electrical submersible pump assembly features a click-together design with built-in electrical conductors and chemical product-protected connectors, allowing for rapid assembly and deployment by two operators without a rig, using coiled tubing for fluid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional threaded assembly method is used to connect motor, seal section and pump, then the connection strength is ensured, but the assembly time is excessive and operation complexity increases
Solution Approach 1:
The pump system is divided into three modular segments (motor, seal section, pump) that can be independently assembled and connected through click-together interfaces, enabling rapid field assembly without requiring complex threading operations
Solution Approach 2:
Traditional threaded mechanical connections are replaced with a click-together interface system that uses cam-actuated locking mechanisms, transforming the assembly process from time-consuming thread engagement to a simple single-motion connection
2Reliability
If power cable splice and termination is performed manually on rig floor, then electrical connection is achieved, but the reliability decreases due to potential weak points and human error
Solution Approach 1:
The electrical conductor connection is merged with the mechanical click-together interface, so that a single assembly action simultaneously achieves both mechanical coupling and electrical continuity, eliminating separate splicing operations and their associated failure points
Solution Approach 2:
The system performs self-connection of electrical conductors through the click-together interface, where the alignment and engagement of connector components automatically establish reliable electrical contact without requiring manual wire splicing or termination
3Productivity
If multiple operators are required for assembly, then the assembly can be completed, but the cost and time consumption increase
Solution Approach 1:
The pump system is divided into three modular segments (motor, seal section, pump) that can be independently assembled and connected through click-together interfaces, enabling rapid field assembly without requiring complex threading operations
Solution Approach 2:
Traditional threaded mechanical connections are replaced with a click-together interface system that uses cam-actuated locking mechanisms, transforming the assembly process from time-consuming thread engagement to a simple single-motion connection
Data Source
AI summary
An electrical submersible pump assembly for producing hydrocarbons from a subterranean well includes a motor-seal click connector releasably connecting a motor to a seal section and engaged by relative axial movement between the motor and the seal section, and a pump-seal click connector releasably connecting the pump to the seal section and engaged by relative axial movement between the pump and the seal section. Electrical conductors are located within a sidewall of the motor housing, a sidewall of the seal section housing, and a sidewall of the pump housing. A male motor-seal electrical connector is axially extending and electrically connects the electrical conductors of the motor housing with the electrical conductors of the seal section housing. A male pump-seal electrical connector is axially extending and electrically connects the electrical conductors of the pump housing with the electrical conductors of the seal section housing.