Oil and gas pipeline corrosion and leakage monitoring and early warning system and method based on OFDR optical fiber sensing

Abstract

The invention discloses an oil and gas pipeline corrosion and leakage monitoring and early warning system and method based on OFDR optical fiber sensing. The system comprises distributed optical fiberstrain sensors, distributed optical fiber temperature sensors, a pipeline internal pressure sensor, an OFDR optical fiber data automatic acquisition device, a pavement base station, a pavement base station information display and transmission system, a solar power supply system, a 5G signal transmission system, an optical fiber data processing and analysis system and a display early warning system. The strain sensors annularly laid on the surface of a pipeline are used for monitoring pipeline corrosion through hoop strain, and the pipeline leakage is monitored by the linear laid optical fibertemperature sensors. After the OFDR data acquisition device sends data to the pavement base station information display and transmission system, the hoop strain data or the pipeline surface temperature is transmitted to the optical fiber data processing and analysis system through the 5G transmission system, and the display early warning system monitors and conducts early warning after comparingthe result with a preset alarm value. According to the system, the degree and the size of corrosion are determined through data comparison, the change of the temperature of the outer wall of the pipeline caused by leakage of the oil and gas pipeline is monitored, and remote and site simultaneous monitoring is realized through the pavement base station.

Description

technical field [0001] The invention relates to a pipeline corrosion and leakage monitoring and early warning system, in particular to an oil and gas pipeline corrosion and leakage monitoring and early warning system and method based on OFDR optical fiber sensing. Background technique [0002] The oil and gas industry has a development history of more than 100 years and is gradually becoming mature. Due to the large gap in the development level and refining technology of various countries, there are still many problems in the world's oil and gas industry, and effective measures need to be actively explored for further adjustments. [0003] At present, with the continuous development of the economy and the continuous advancement of science and technology, the demand for oil is also increasing. The safety of oil and gas pipelines directly affects the sustainable development of the oil and gas industry and the safety of people's lives and property. Corrosion and leakage of pip...

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Problems solved by technology

[0006] Purpose of the invention: The present invention provides a pipeline corrosion and leakage early warning monitoring system and method based on OFDR optical fiber sensing to solve the deficiencies in the prior art

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