地下储气库安全风险评估指南发布

Core Viewpoint - The release of the "Underground Gas Storage Safety Risk Assessment Guidelines (Trial)" aims to enhance risk management in gas and oil underground storage facilities in China, addressing the need for improved safety measures in the sector [1][2]. Group 1: Guidelines Overview - The guidelines are applicable to operational gas and oil underground storage facilities and utilize a quantitative scoring method to identify risks and determine risk levels [1]. - The guidelines mandate annual safety risk assessments for operational gas and oil underground storage facilities, categorizing them into four risk levels: high risk, relatively high risk, medium risk, and low risk [2]. Group 2: Risk Assessment Criteria - The assessment includes five veto items related to site selection and overall layout; if any veto item is present, the facility is classified as high risk [2]. - High-risk facilities must undergo comprehensive shutdown and rectification, while relatively high-risk facilities require partial shutdown, medium-risk facilities must rectify within a specified timeframe, and low-risk facilities can create their own rectification plans [2]. Group 3: Evaluation Indicators - The guidelines set 16 key evaluation indicators divided into hardware and management aspects, covering site selection, geological conditions, equipment, and management practices [2]. - The hardware evaluation focuses on aspects such as site layout, technology, geological body, wellbore, surface equipment, pipelines, automatic control instruments, and fire safety [2]. - The management evaluation assesses safety management, operational management, integrity management, work management, change management, contractor management, incident management, and emergency management [2]. Group 4: Assessment Methods - The safety risk assessment employs two primary methods: document review and on-site inspection, further detailed into four specific methods: reviewing systems, operational checks, site inspections, and monitoring evaluations [3]. - This comprehensive approach allows for a detailed scoring of underground storage facilities, capturing the current management status and potential risks [3].