Pipeline Exposure Detection via Upstream Temperature Gradient Analysis
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Solution Overview
Problem
Existing methods for detecting pipeline exposure in bodies of water are inadequate, particularly during inclement weather or flood events, and in-line inspection methods provide insufficiently timely information to prevent operational issues, necessitating a real-time detection system that does not require equipment installation along the pipeline crossing.
Innovation Solution
A system comprising distal and proximal upstream sensors and a downstream sensor, which measure and estimate temperature changes along the pipeline to identify exposure by calculating the temperature rate of change and comparing it with actual readings, using signal transmission means for remote data processing and potential video or photographic support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If in-line inspection methods are used to detect pipeline exposure, then detection capability is provided, but the information is not sufficiently timely to prevent operational problems
Solution Approach 1:
The system performs preliminary detection by measuring temperature at multiple upstream locations before the pipeline crosses the water body. By establishing the temperature gradient and rate of change in advance, the system can predict the downstream temperature and detect exposure conditions before they result in operational failures, thus providing timely warning while maintaining detection precision.
2Measurement precision
If equipment is installed along the pipeline crossing to detect exposure, then detection accuracy is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The invention extracts the detection function from the pipeline crossing location itself and relocates all sensing equipment to upstream positions where the pipeline is accessible and dry. By taking out the temperature measurement function from the difficult-to-access water crossing area and performing the detection calculation remotely, the system achieves accurate exposure detection without complex equipment installation at the crossing location.
Solution Approach 2:
The system uses temperature measurement as an intermediary parameter to indirectly detect pipeline exposure. Instead of directly measuring exposure conditions at the water crossing, the system measures temperature at upstream locations and uses thermal gradient analysis as a mediator to infer exposure status, thereby avoiding the need for complex direct measurement equipment at the crossing.
3Ease of operation
If traditional detection methods are used during inclement weather or flood events, then detection may be executed, but the process is not easily executed and reliability decreases
Solution Approach 1:
The system performs all measurements and calculations in advance, before adverse weather conditions develop. By establishing the temperature gradient and predicting downstream conditions while conditions are favorable, the system ensures both ease of operation and reliable detection even when flood events or inclement weather occur, as the detection logic has already been established.
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
Enables nearly real-time detection of pipeline exposure, reducing the risk of fluid containment failure by identifying deviations in temperature changes, thus providing timely operational insights without the need for equipment installation along the pipeline crossing.
Implementation Method 1
a distal upstream sensor at a first location upstream and distal to the crossing of the body of water for obtaining a first temperature of the pipe at the first location; a proximal upstream sensor at a second location upstream and proximal to the crossing of the body of water for obtaining a second temperature of the pipe at the second location
Data Source
AI summary
The present invention relates to a method and system of an arrangement of sensors that can be used to detect changes in burial conditions of a pipeline buried under a body of water. The method comprising: obtaining a first temperature of a fluid at a first location; obtaining a second temperature of the fluid at a second location upstream and proximal to the crossing of the body of water; obtaining a third temperature of the fluid at a third location downstream from the crossing of the body of water; generating an estimate of the temperature of the fluid at the third location by establishing the rate of change of temperature of the fluid using the obtained first and second temperature and the distance between the first and second sensors; and identifying pipe exposure when there is a deviation between the estimated temperature and the obtained third temperature.