Modular Linear Electric Submersible Pump Unit
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Solution Overview
Problem
Current submersible pump units for oil production have low reliability due to a lack of telemetry and hydraulic compensator units, leading to inefficient operation and maintenance challenges, especially in wells of varying diameters and productivities.
Innovation Solution
The design of a linear electric submersible pump unit is modular, with detachable connections and a hydraulic compensator module, featuring an elastic diaphragm and a damping system, along with a telemetry system for surface control, to enhance reliability and maintainability, and includes a plug and socket connection for electrical communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If submersible pump units are used in small-diameter wells with low production rate, then the equipment becomes widely used and increasingly solicited, but reliability decreases due to lack of telemetry and hydraulic compensator units
Solution Approach 1:
The pump unit is divided into separate functional modules: a pump module and a linear electric motor module, connected by detachable connections. This segmentation allows the telemetry unit and hydraulic compensator to be integrated into specific modules, improving reliability while maintaining adaptability to small-diameter wells.
Solution Approach 2:
A telescopic connection element is introduced as an intermediary between the pump module and linear electric motor module. This element provides both mechanical connection and hydraulic compensation functions, ensuring reliable operation in constrained spaces of small-diameter wells while maintaining system integrity.
2Ease of manufacture
If a single enclosure design is used for pump units, then manufacturing is simplified, but maintainability and processability deteriorate
Solution Approach 1:
The single enclosure is divided into separate functional modules (pump module, linear electric motor module) connected by detachable connections. Each module can be manufactured independently, simplifying production while enabling easy replacement and maintenance of individual components without disassembling the entire unit.
Solution Approach 2:
The detachable connections and telescopic elements allow the modular assembly to be dynamically configured during assembly and maintenance. Modules can be easily connected and disconnected, providing flexibility for maintenance operations while maintaining a compact integrated appearance during operation.
3Ease of repair
If modular design with detachable connections is implemented, then maintainability and manufacturing processability improve, but device complexity increases
Solution Approach 1:
The pump unit is segmented into standardized modules with detachable connections, improving maintainability through easy module replacement. The segmentation uses conventional connection elements and standardized interfaces, which manages structural complexity through modularity and repeatability.
Solution Approach 2:
The detachable connection elements and telescopic components serve multiple functions: mechanical connection, hydraulic compensation, and alignment. This multi-functionality reduces the number of separate components needed, managing overall structural complexity while enabling modular assembly and disassembly for maintenance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This modular design improves manufacturing processability, reduces maintenance time, and increases output while ensuring high performance and reliability, allowing for prompt replacement of faulty modules and efficient operation in various well conditions.
Implementation Method 1
a hydraulic compensator module, featuring an elastic diaphragm
Implementation Method 2
a damping system
Implementation Method 3
A linear submersible motor with permanent magnets (hereinafter referred to as LSMPM) is used to actuate pump plungers
Data Source
AI summary
An invention relates to a field of oil production, in particular, to installations with displacement pumps driven by submersible linear electric motors, and can be used for production of stratum fluids from a marginal well stock from great depths. The described technical solution implementation ensures unification of a design with simultaneous increase in a manufacturing processability by means of involving of easily removable interoperable modules for its manufacture. Also a described embodiment contributes to decrease in a pump unit dimensions. According to the described embodiment of the invention a telemetry system performance provides an increase in a level of protection from a high-voltage interference with implementation of a hardware-software mode of a surface control unit for checking an insulation. Providing that an arrangement of the described design ensures a reduction in dynamic loads on elements of an electrical motor design and contributes to increase in its operating resource.