Multi-phase Multi-well Pumping Unit with Flexible Power Ropes
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Solution Overview
Problem
Conventional oil pumping units face issues of high energy consumption, large volume, heavy weight, and low oil pumping efficiency, necessitating a more efficient and intelligent solution to enhance exploitation benefits in a resource-constrained environment.
Innovation Solution
A multi-phase controlled multi-well pumping unit featuring dual crank mechanisms connected to flexible power ropes and guide components, which distribute power uniformly across multiple wells, ensuring balanced stress and reduced energy consumption through a compact and efficient design, including wellhead stroke adjustment, single-well shutdown balance, flexible power rope quick disconnection, and artificial intelligence management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional pumping units are used to pump oil, then oil production can be achieved, but energy consumption is high and pumping efficiency is low
Solution Approach 1:
The patent divides a single pumping unit into multiple independent pumping units (first, second, third, and fourth pumping units), each capable of operating independently. This segmentation allows the system to serve multiple wells simultaneously, improving overall productivity while distributing energy consumption across multiple smaller units rather than one large inefficient unit.
Solution Approach 2:
The patent combines multiple pumping units into an integrated system sharing common components such as the power output device, flexible power ropes, and control system. This merging achieves economies of scale, reducing total energy consumption compared to operating separate pumping units while maintaining high productivity through coordinated operation of multiple wells.
2Productivity
If traditional pumping units are used, then oil extraction is achieved, but the device volume and weight are large
Solution Approach 1:
The patent employs flexible power ropes instead of traditional rigid mechanical linkages to transmit power from the power output device to multiple pumping units. This flexible transmission method eliminates the need for heavy rigid connecting structures, significantly reducing the overall weight and volume of the system while maintaining the capability to drive multiple pumping units effectively.
Solution Approach 2:
The patent designs a universal power output device and control system that can serve multiple pumping units simultaneously. This multi-functional design consolidates components that would otherwise be duplicated in separate pumping units, reducing total system weight and volume while maintaining the productivity of extracting oil from multiple wells.
3Adaptability or versatility
If multiple wells are served by separate pumping units, then each well can be pumped independently, but the system complexity and cost increase
Solution Approach 1:
The patent merges multiple pumping units into a coordinated system sharing common infrastructure including the power output device, control system, and flexible power rope transmission. This consolidation reduces system complexity compared to operating completely separate pumping units for each well, as common components are managed centrally while maintaining independent well-by-well operational control.
Solution Approach 2:
The patent implements dynamic control capabilities that allow the system to adaptively adjust the operation of individual pumping units based on well conditions, power availability, and production requirements. This dynamic control enables independent operation of each well while the system as a whole responds flexibly to changing conditions, managing complexity through intelligent coordination rather than rigid fixed configurations.
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
The solution significantly reduces energy consumption and improves efficiency by balancing loads across multiple wells, achieving an 86.2% reduction in maximum load, 87.9% reduction in alternating load, and 89.9% reduction in total weight and installed power, while maintaining system stability and flexibility.
Implementation Method 1
two flexible power ropes moving synchronously jointly drive one pumping well
Implementation Method 2
flexible power ropes restrict a direction of power output through the power output part
Implementation Method 3
a load is reduced
Implementation Method 4
the crank part includes two crank mechanisms, the two crank mechanisms are fixedly connected to two end parts of the rotating shaft respectively
Implementation Method 5
a plurality of flexible-power-rope guide components distributed in different phases (angles) along the radial direction of the output shaft
Data Source
AI summary
The present invention provides a multi-phase controlled multi-well pumping unit and relates to an oil exploitation device. The multi-phase controlled multi-well pumping unit includes: a power part, where include a rotating shaft; a crank part, where the crank part includes two crank mechanisms, and a power output part, where the power output part includes a plurality of flexible-power-rope guide components. The pumping unit drives the dual cranks by two ends of the rotating shaft to serve as a power source, and the dual-crank power output mechanism leads out a plurality of groups of flexible power ropes to drive, by using the uniformly distributed guide components, a plurality of pumping wells to operate. Such practice can effectively reduce energy consumption of the multi-well pumping unit system and further improve efficiency.