Hydraulic Fracturing Pump Monitoring for Cavitation and Pulsation
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Solution Overview
Problem
Hydraulic fracturing operations face challenges in efficiently and effectively controlling cavitation and pulsation events, leading to premature wear and damage of hydraulic fracturing units due to the complexity and large number of components, making manual control inadequate for timely detection and mitigation.
Innovation Solution
Implementing semi- or fully-autonomous systems and methods to detect and mitigate cavitation and pulsation events by using supervisory controllers to analyze pump and blender signals, determining threshold values, and generating notification signals for proactive intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual control is used for hydraulic fracturing units, then device complexity is reduced, but detection precision and response time to cavitation and pulsation events deteriorate
Solution Approach 1:
The patent replaces manual mechanical control with an automated control system that uses sensors to detect cavitation and pulsation events. The supervisory controller automatically monitors pump operations and triggers interventions based on detected anomalies, eliminating the need for manual monitoring while improving detection precision and response time.
2Measurement precision
If semi- or fully-autonomous systems are implemented to detect cavitation and pulsation events, then detection precision and response time improve, but device complexity increases
Solution Approach 1:
The patent implements a feedback-based control system where sensors continuously monitor pump operations and provide real-time data to the supervisory controller. When cavitation or pulsation events are detected, the system automatically provides feedback signals to adjust pump operations or alert operators, creating a closed-loop control system that improves detection precision while managing complexity through systematic feedback mechanisms.
3Ease of operation
If manual control is used, then ease of operation is maintained, but productivity and timely intervention capability deteriorate
Solution Approach 1:
The patent enables the hydraulic fracturing system to monitor and intervene in its own operations through automated detection of cavitation and pulsation events. The supervisory controller automatically responds to detected anomalies by adjusting pump operations or generating alerts, allowing the system to self-manage critical events without requiring constant manual intervention, thereby improving productivity while maintaining operational simplicity.
Data Source
AI summary
Systems and methods for monitoring, detecting, and/or intervening with respect to cavitation and pulsation events during hydraulic fracturing operations may include a supervisory controller. The supervisory controller may be configured to receive pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the hydraulic fracturing pump. The supervisory controller also may be configured to receive blender signals indicative of one or more of blender flow rate or blender discharge pressure. Based on one or more of these signals, the supervisory controller may be configured to detect a cavitation event and/or a pulsation event. The supervisory controller may be configured to generate a cavitation notification signal indicative of detection of cavitation associated with operation of the hydraulic fracturing pump, and/or a pulsation notification signal indicative of detection of pulsation associated with operation of the hydraulic fracturing pump.