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Risk Assessment of Oil and Gas Pipeline Based on Vague Set-Weighted Set Pair Analysis Method
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Risk Assessment of Oil and Gas Pipeline Based on Vague Set-Weighted Set Pair Analysis Method
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Journal Article
Risk Assessment of Oil and Gas Pipeline Based on Vague Set-Weighted Set Pair Analysis Method
2023
Overview
This study focuses on a risk assessment method for oil and gas pipelines. Oil and gas pipelines are usually constructed in a complex geological environment and are potentially dangerous. Risk assessment is a key step for their safety management. Therefore, the present paper establishes a risk indicator system as the risk assessment foundation, and we propose a risk assessment method to obtain a quantitative assessment result for the pipeline based on set pair analysis (SPA) theory. For the weight values of each indicator in the assessment process, this paper presents a calculation method based on vague sets theory. Then, a pipeline in the Yanchang oilfield was taken as a case study to verify the feasibility of the method, and the final assessment result was 2.911, which meant the pipeline was relatively safe. The method could also obtain the risk level of each indicator, showing that geological conditions, extreme weather, and public safety awareness were particularly unsafe, and service time, pipeline deformation, ground activity, and operation training were relatively unsafe. It is expected that the risk assessment result could provide a reference for pipeline safety management.
