Electric Submersible Pump Cable Event Detection During Deployment
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Solution Overview
Problem
Existing systems for event detection during electric submersible pump assembly deployment lack the necessary combination of components and features to effectively detect and respond to events such as downhole kicks, power surges, and cable damage, posing risks to equipment and personnel.
Innovation Solution
An event detection assembly comprising a reel, an electric cable, sensors configured to detect locations and events on the cable, and an alarm to actuate in response to detected events, along with a controller to manage data and relay electricity flow, ensuring real-time monitoring and hazard mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If event detection assemblies are implemented during electric submersible pump assembly deployment, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple detection functions (cable position detection, event detection, alarm activation) into a single integrated event detection assembly. The sensors, reel, cable, and alarm are merged into one coordinated system that operates together during deployment, reducing the need for multiple separate devices while maintaining comprehensive monitoring capability.
Solution Approach 2:
The event detection assembly is designed to perform multiple functions: detecting cable position, monitoring for events (kicks, power surges, cable damage), and activating alarms. This multi-functional design consolidates what could be separate specialized devices into one universal monitoring system, improving reliability without proportionally increasing complexity.
2Loss of time
If real-time event detection and monitoring are implemented, then response time to hazards is reduced, but device complexity and cost increase
Solution Approach 1:
The system performs preliminary detection and monitoring actions continuously during deployment before actual hazards occur. Sensors are positioned and activated in advance to detect cable position and monitor for events, enabling early warning and immediate response to potential hazards like kicks or cable damage before they cause damage.
Solution Approach 2:
The system implements continuous feedback through sensors that monitor cable position and detect events, with immediate feedback to the alarm system. When an event is detected, the alarm provides real-time feedback to operators, enabling rapid response. This closed-loop feedback mechanism reduces response time without requiring overly complex manual monitoring procedures.
3Measurement precision
If comprehensive sensor monitoring of cable locations and events is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The monitoring system is segmented into distinct functional components: sensors for cable position detection, separate sensors for event detection, and an alarm system. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity. The sensors are positioned at specific locations along the cable to provide precise measurement without requiring continuous complex monitoring along the entire cable length.
Data Source
AI summary
Disclosed herein are event detection assemblies and methods for electric submersible pump assembly deployment that may each include: an event detection assembly for electric submersible pump assembly deployment downhole that may include: a reel; an electric cable that may be coupled to the reel and may be capable of being electrically coupled to an electric submersible pump assembly; one or more sensors, which may be: configured to detect a first location on the electric cable and to detect a second location on the electric cable; and configured to detect an event on the cable occurring any time from detection of the first location to detection of the second location; and an alarm configured to actuate in response to detection of an event.