Long-Stroke Pumping Unit Side Load Control With Sensor Feedback
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Solution Overview
Problem
Conventional long stroke pumping systems suffer from premature failure, high maintenance needs, and economic costs due to inadequate management of structural loading during operation, particularly in hydrocarbon recovery, leading to safety and production issues.
Innovation Solution
A hydraulic cylinder-based pumping unit with integrated sensors and control systems to monitor and manage side loads, including tilt sensors, filtration, and a control system to adjust performance parameters, reducing wear and extending operational life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional long stroke pumping systems operate without side load control, then they can run until field failure, but this causes premature breakdown, high maintenance costs, and safety issues
Solution Approach 1:
The control system performs preliminary actions by monitoring side loads in real-time and taking corrective measures before failure occurs. Sensors continuously measure tilt and position, and the control system adjusts pump operation proactively to prevent excessive side loads that would lead to premature breakdown of sucker rods and other components.
Solution Approach 2:
The system implements feedback through sensors that continuously monitor tilt, position, and side load conditions. This feedback is fed to the control system which adjusts pump operation in real-time to maintain optimal loading conditions, preventing the premature failure that occurs in conventional systems that operate without such feedback loops.
2Reliability
If conventional systems lack integrated monitoring, then the system structure remains simple, but this leads to inability to manage structural loading and repeated breakdown
Solution Approach 1:
The control system serves multiple functions: it monitors tilt, measures position, calculates side loads, and adjusts pump operation all through a single integrated system. This multi-functionality improves reliability without adding excessive complexity, as one control unit handles multiple monitoring and control tasks rather than requiring separate systems for each function.
Solution Approach 2:
The system performs self-service through automated monitoring and control. The sensors and control system automatically detect side load conditions and adjust pump operation without requiring external intervention or complex manual monitoring systems, thereby improving reliability while keeping the overall system complexity manageable.
3Productivity
If sucker rods are subjected to repeated compression and tension without side load management, then the pumping operation continues, but this causes failure at stress levels lower than material yield point
Solution Approach 1:
The control system applies preliminary anti-action by detecting and counteracting side load conditions before they can cause damage to the sucker rods. By monitoring tilt and position and adjusting pump operation proactively, the system prevents excessive lateral forces that would otherwise accumulate during repeated compression and tension cycles and cause failure at stresses below the material yield point.
Solution Approach 2:
The system implements dynamics by continuously adjusting pump operation based on real-time side load conditions. Rather than operating at fixed parameters, the control system dynamically modifies pump speed and stroke to maintain optimal loading on sucker rods, thereby protecting rod strength while maintaining pumping productivity.
Data Source
AI summary
Embodiments presented provide for an arrangement used in long stroke mechanical systems. In embodiments, the arrangement provides side load control of forces exerted on the long stroke systems due to operation. Such embodiments may be used in hydrocarbon recovery operations.