Deep sea pipeline crack propagation monitoring and reliability evaluation system based on image recognition

Abstract

The invention provides a deep sea pipeline crack propagation monitoring and reliability evaluation system based on image recognition. The deep sea pipeline crack propagation monitoring and reliability evaluation system comprises monitoring equipment, a deep sea camera used for obtaining change parameters of a monitored pipeline, a pressure sensor used for obtaining internal pressure, an acceleration sensor used for obtaining displacement changes, a network transmission module used for establishing communication between the monitoring equipment and the analysis system, an analysis system used for analyzing and evaluating the received surface image, and providing the reliability of the current monitored pipeline and the reliability evaluation result of the current monitored pipeline in the whole pipeline system in combination with the information of the monitoring equipment, and an alarm system used for sending alarm information to the outside when the reliability influence of the to-be-monitored pipeline is lower than a threshold value. According to the invention, the crack propagation condition of each key point is monitored in real time based on the picture data returned by the deep-sea cameras at different key points of the deep sea pipeline system, and the pressure and acceleration data are combined so that the working, operation and maintenance personnel of the deep-sea petroleum engineering are effectively helped to know the health condition of the pipeline in time.

Description

technical field [0001] The invention relates to the field of underwater pipeline monitoring, in particular to an image recognition-based deep-sea pipeline crack extension monitoring and reliability evaluation system. Background technique [0002] With the development of my country's oil exploration to the deep sea, the use of deep-sea pipelines is becoming more and more extensive. The construction, operation and maintenance of deep-sea pipelines is also an important manifestation of a country's capabilities. Because the deep-sea oil pipeline is located in the deep sea and is under high pressure for a long time, it will produce cracks under the action of axial and circumferential loads. If the cracks expand to a certain extent, the pipeline system will fail, and even oil will leak in serious cases, resulting in huge economic losses. Benefit loss and extremely destructive pollution to the environment. Investigations have shown that material aging, long-term fatigue effects, a...

AI Technical Summary

Problems solved by technology

[0004] However, the current deep-sea monitoring method is unreasonably arranged. It simply acquires crack images without considering the impact of changes in the pipeline itself on the cracks, such as moving distance, internal and external pressure differences, etc., and the existing inspection methods encounter dangerous sea conditions. Unable to inspect

In addition, the existing analysis system has great limitations in the way of evaluating crack images, and cannot achieve real-time evaluation

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