A method for monitoring leakage of pipeline joints

Abstract

The invention provides a pipeline joint leakage monitoring system and method. The system comprises a cloud server, optical signal sending and receiving equipment, a distributed fiber sensor and a water swelling piece. According to the pipeline joint leakage monitoring system and method, joint leakage events can be accurately identified by setting up an event database; modulated optical signals measured at different times can be identified by setting up sequence identification codes; and the data processing speed of the cloud server can be accelerated by setting modes of a d-t database, etc., and the characteristics of high processing speed and a good event identification effect are achieved. The optical signal sending and receiving equipment of the system has a simple structure and low manufacturing and maintenance cost, is conductive to large-scale popularization and application, and has high practicality in practical use.

Description

technical field [0001] The invention relates to the field of distributed optical fiber sensing, in particular to a pipeline interface leakage monitoring method. Background technique [0002] The large-scale oil and gas pipelines buried deep underground will be deformed due to stress hazards caused by geological subsidence, and then there will be problems such as pipeline damage and leakage. Once a problem occurs, it will cause damage to the surrounding ecological environment, and in severe cases, it will cause an explosion, threatening the safety of people's lives and property. [0003] According to the statistics of pipeline leakage events, most of the leakage locations of pipelines are concentrated at the pipeline interface, so it is necessary to monitor the leakage of pipeline interface. [0004] Distributed optical fiber sensing monitoring technology is a new type of sensing technology that uses sensing optical fiber as a monitoring element and signal transmission mediu...

AI Technical Summary

Problems solved by technology

[0002] The large-scale oil and gas pipelines buried deep underground will be deformed due to stress hazards caused by geological subsidence, and then problems such as pipeline damage and leakage will occur

Once a problem occurs, it will cause damage to the surrounding ecological environment, and in severe cases, it will cause an explosion, threatening the safety of people's lives and property.

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