System and method for identifying and evaluating high-consequence areas of gas pipelines

Abstract

The invention provides a system and method for identifying and evaluating high-consequence areas of gas pipelines. The method includes analyzing and processing information in a pre-established database module to extract pipeline basic data and surrounding geographic information data; from the pipeline basic data and surrounding geographic information data, according to preset consequence element selection rules, extract Consequence element information data related to high-consequence areas of the pipeline is obtained to form a consequence element set; the data of the consequence elements is collected, and the regional grades along the pipeline are divided according to the pre-set regional grade evaluation parameters to obtain regional grade data; the consequence elements According to the pre-set identification criteria for high-consequence areas of gas transmission pipelines, the high-consequence areas are obtained; according to the pre-set evaluation criteria for high-consequence areas of gas transmission pipelines, the identified The severity of the consequences of the high-consequence areas is graded and evaluated, which can improve the quality and efficiency of identification.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of risk management of oil and gas pipelines, and in particular to a system and method for identifying and evaluating high-consequence areas of gas pipelines. Background technique [0002] In the past ten years, my country's natural gas industry has developed by leaps and bounds, which has promoted the adjustment of the national energy structure and industrial structure. The construction of natural gas pipelines has also developed rapidly. Under the situation that the natural gas pipeline network does not need to be extended, there will be more and more threats to the facilities and safe operation of the gas pipeline network. Strengthening the risk management of gas pipelines is especially important. It is an urgent task to identify, evaluate and manage pipeline high-consequence areas. [0003] Pipeline high-consequence areas refer to areas where leakage of pipelines will endanger p...

AI Technical Summary

Problems solved by technology

[0004] my country's oil and gas pipeline integrity management related technical standards have established identification and grading basis for high-consequence areas of gas pipelines, and part of the identification basis is divided by regional level; since the definition of area level is a qualitative description, the on-site high-consequence area identification operation is relatively vague; In addition, qualitative methods are also used for grading high-consequence areas. When there are multiple high-consequence factor areas, the grading results are not accurate enough, and there are misjudgments and grading deviations. In addition, the standard does not propose a clear identification method. Usually, manual line inspection based on identification criteria is used on site. The method of manual statistics leads to strong randomness in the execution of the recognition rules, which eventually leads to errors caused by too many subjective factors in the recognition results. , the identification process and results are easily affected by human factors, the identification cycle is long, the cost is high, and the quality is unstable. The identification results cannot be effectively applied in the identification process of the next year. The reliability of the identification results and the guidance for management are not satisfactory.

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