Redundant Mudlogging Gas Detection System with Autonomous Backup Switching
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Solution Overview
Problem
Current mudlogging gas detection systems lack reliability and redundancy, leading to potential loss of critical drilling process information due to equipment failure during rapid drilling operations, as they often do not have backup or redundant detector systems to maintain functionality.
Innovation Solution
A portable Mudlogging gas detection system with redundant sensors and a backup detection system that autonomously switches in case of failure, utilizing an infrared interferometer, multiple gas detectors, and a suction/push pump system to ensure accurate and quick gas measurements, along with a predictive algorithm to adjust testing conditions and maintain accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single gas detection system is used, then the device complexity is reduced, but the reliability deteriorates due to lack of backup systems
Solution Approach 1:
The gas detection system is segmented into multiple independent detection units, each capable of autonomous operation. The system divides the detection function across several sensors (infrared interferometer, other gas detectors) that can independently measure gas composition, allowing the system to maintain reliability through distribution rather than centralization.
Solution Approach 2:
The system implements beforehand cushioning by incorporating backup detection systems that are pre-configured and ready to take over if the primary detection system fails. The controller is programmed to automatically switch to backup detectors when failure is detected, providing a safety cushion against system failure during critical drilling operations.
2Reliability
If multiple redundant sensors are deployed, then the reliability is improved, but the device complexity increases
Solution Approach 1:
Multiple redundant sensors are merged into a unified detection system managed by a single controller. The controller integrates data from the infrared interferometer and other gas detectors, coordinating their operations and consolidating their outputs into a unified gas composition analysis, thereby managing complexity through integration rather than proliferation.
Solution Approach 2:
The detection system is designed with multi-functionality where the same detection apparatus serves multiple purposes: primary detection, backup detection, and cross-validation. The controller universally manages different sensor types and can switch between them based on operational needs, making the system adaptable without requiring separate dedicated systems for each function.
3Reliability
If autonomous switching to backup detector is implemented, then the reliability is improved, but the automation extent increases complexity
Solution Approach 1:
The controller implements feedback mechanisms by continuously monitoring the operational status of all detection systems. When a sensor or detector fails to provide valid readings or exhibits abnormal behavior, the feedback loop triggers an automatic switch to the backup detector, ensuring reliability through closed-loop control rather than open-loop complexity.
Solution Approach 2:
The system performs self-service through automatic failure detection and autonomous switching to backup detectors without requiring external intervention. The controller autonomously manages the detection system, detecting failures and executing switchovers based on pre-programmed criteria, thereby reducing the need for complex manual control systems while maintaining high reliability.
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 system provides long-term reliability and accuracy in gas measurements by enabling autonomous switching to a backup detector, optimizing gas flow and detection conditions, and maintaining testing speed and accuracy despite changing environmental conditions.
Implementation Method 1
at least one infrared interferometer
Implementation Method 2
at least one infrared interferometer
Data Source
AI summary
A new apparatus and method within a portable Mudlogging gas detection system that determines the total amounts and various composition of an incoming mix of gases extracted from drilling fluid. The Mudlogging system consists of at least one electronic computing device, at least one infrared interferometer, and at least one other device for detecting gasses extracted from the drilling fluid. The Mudlogging system may switch from the primary gas detection means to a secondary gas detection means upon detection of a non-recoverable fault of the first gas detection means.