Oil-gas pipeline monitoring system based on optical fiber

Abstract

The invention relates to an oil-gas pipeline monitoring system based on optical fiber. The oil-gas pipeline monitoring system is characterized by comprising a monitoring center, a plurality of monitoring substations, an optical fiber sensing analyzer, a laser device, a sensing optical cable, an fiber bragg grating sensor and an optical signal processor, wherein the monitoring center is provided with a master control server and a display screen; a controller monitoring camera, an alarm device, a sound pickup device and a sound amplification device are arranged in each monitoring substation; the controllers are connected with the monitoring cameras, the alarm devices, the sound pickup devices, the sound amplification devices and the optical signal processor in sequence; the optical signal processor is connected with the fiber bragg grating sensor through optical fiber. Through the oil-gas pipeline monitoring system, the fiber bragg grating sensor is arranged on an oil-gas conveying pipeline; the stress state of the pipeline is analyzed by monitoring the stress change of the pipeline and is warned in advance, so that operators can maintain the pipeline in time, so that the danger caused by damage to the pipeline and the leakage of the oil and the gas can be reduced.

Description

technical field [0001] The invention relates to the technical field of oil and gas pipeline monitoring, in particular to an optical fiber-based oil and gas pipeline monitoring system. Background technique [0002] Oil and gas pipelines are responsible for the transmission of a large number of oil and gas resources in the country, which is related to national security, economic and social harmony, stability and development. Effective anti-theft and anti-dig damage early warning monitoring of oil and gas pipelines can effectively avoid or reduce losses. The existing oil and gas pipelines have long transmission distances and complex environments, so online monitoring and alarming of pipelines require high technical requirements. Traditional monitoring methods mainly include manual inspection, buried point-type vibration detection and alarm, etc. These methods are not only costly, waste of human and financial resources, but also have low degree of automation, poor anti-interfere...

AI Technical Summary

Problems solved by technology

The existing oil and gas pipelines have long transmission distances and complex environments, so online monitoring and alarming of pipelines require high technical requirements

Traditional monitoring methods mainly include manual inspection, buried point-type vibration detection and alarm, etc. Such methods are not only costly, waste of human and financial resources, but also low in automation, poor in anti-interference ability, and low in sensitivity

Traditional open-air oil and gas pipelines are widely distributed, long in length, and difficult to manage. Due to various natural factors, pipelines will move, resulting in leakage accidents at pipeline connections. However, the inspection workload for pipeline leakage is very large, but there is a lack of Effective monitoring of leakage, oil and gas leakage will not only bring economic losses, but also cause pollution to the environment

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