Crack Growth Monitoring and Reliability Evaluation System for Deep Sea Pipeline Based on Image Recognition

Abstract

The present invention provides a deep-sea pipeline crack growth monitoring and reliability evaluation system based on image recognition, including: monitoring equipment, a deep-sea camera for obtaining the changing parameters of the monitoring pipeline, a pressure sensor for obtaining internal pressure, and obtaining the acceleration of its displacement change Sensor; network transmission module, used to establish communication between monitoring equipment and analysis system; analysis system, which analyzes and evaluates the received surface image, and combines the information of monitoring equipment to give the reliability of the current monitoring pipeline and its status in the whole The reliability evaluation results in the pipeline system; the alarm system sends an alarm message to the outside world when the reliability impact of the pipeline to be monitored is lower than the threshold. Based on the picture data returned by the deep-sea camera at different key points of the deep-sea pipeline system, the present invention monitors the crack growth of each key point in real time, and combines the pressure and acceleration data to effectively help the operation and maintenance personnel of deep-sea petroleum engineering to understand the pipeline in a timely manner health status.

Description

technical field [0001] The invention relates to the field of underwater pipeline monitoring, in particular to a deep-sea pipeline crack propagation monitoring and reliability evaluation system based on image recognition. 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, and the construction and operation and maintenance of deep sea pipelines are also an important manifestation of a country's capabilities. Because the deep sea oil pipeline is located in the deep sea and is in a high pressure state for a long time, cracks will occur under the action of axial and circumferential loads. The crack expansion to a certain extent will cause the failure of the pipeline system, and even leak oil in serious cases, resulting in huge economic Loss of benefits and destructive pollution to the environment. The investigation shows that material aging, long-term fatigue effec...

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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