Urban oil and gas pipeline major accident risk early warning and assessment method

Abstract

The invention discloses an urban oil and gas pipeline major accident risk early warning and assessment method, and belongs to the technical field of pipeline risk early warning and assessment. The method comprises the steps that a factor set is determined according to risk factors in the pipeline operating process; weight matrixes of all levels of factor indexes are determined by the use of an interval analytical hierarchy process relative scalar quantity method; risk assessment is conducted on the indexes, so that a warning degree division result is obtained; and risk assessment results of various factors are obtained on the basis of risk quantity indexes, and relative risk values are calculated through the combination of leakage influence coefficients. According to the urban oil and gaspipeline major accident risk early warning and assessment method, a kent pipeline risk assessment method and a risk early warning method are combined, and therefore the purposes that the pipeline warning degree is judged, and an early warning response is conducted can be achieved on the basis of risk assessment of all risk factor warning omens and overall consideration of the pipeline accident occurrence probability and the consequence severity.

Description

technical field [0001] The present invention relates to a pipeline risk early warning assessment method, in particular to an urban oil and gas pipeline major accident risk early warning assessment method, which calculates the relative risk index according to the urban oil and gas pipeline warning sign risk assessment and hierarchical weight, and realizes the urban oil and gas pipeline early warning grade division and method of assessment. Background technique [0002] At present, pipeline transportation has become the fifth largest transportation mode after road, railway, waterway and shipping, and is the lifeblood of my country's oil and gas transportation industry. More than 70% of my country's crude oil and 99% of oil and gas are transported through pipelines, and oil and gas pipelines are playing an increasingly important role in my country's daily production and life and social development. As of the end of 2016, the total mileage of China's onshore oil and gas pipelin...

AI Technical Summary

Problems solved by technology

However, there are many defects in the widely existing early warning level classification methods, mainly reflected in: the early warning objects are relatively rough, and there is no specific and in-depth analysis; the factors considered in the warning level classification are not comprehensive enough, the quantitative means are too single, and there is a lack of a complete early warning evaluation model Wait

At present, there are many technologies for oil and gas pipeline safety early warning, such as optical fiber sensing pipeline safety early warning technology, seismic wave detection pipeline safety early warning technology, etc. The scientificity and accuracy of pipeline risk early warning assessment urgently requires a new urban oil and gas pipeline risk early warning method to predict the future status of the pipeline, predict the degree of damage and the scope of the abnormal state of the pipeline, and raise the existing problems of the pipeline. Solution measures, alarms for possible pipeline problems and provide preventive and improvement measures, so as to avoid or reduce pipeline accidents

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