基于层次分析法的CO驱注采工程安全风险评价

Evaluation on the safety risk in the injection and production engineering of CO flooding based on analytical hierarchy process

张绍辉 王帅 潘若生 耿笑然 王玲

ZHANG Shaohui WANG Shuai PAN Ruosheng GENG Xiaoran WANG Ling

中国石油勘探开发研究院 中海油研究总院有限责任公司 中国石油吉林油田分公司油气工程研究院 中国石油辽河油田分公司勘探开发研究院

PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China CNOOC Research Center, Beijing 100027, China Oil and Gas Engineering Research Institute, PetroChina Jilin Oilfield Company, Songyuan 138000, Jilin, China Exploration and Development Research Institute, PetroChina Liaohe Oilfield Company, Panjin 124010, Liaoning, China

注采工程安全风险管理是CO₂驱油技术现场实施的关键环节。为保障CO₂驱现场注采施工安全和提高注采工程安全风险管理水平，梳理了注采过程中存在的安全风险，同时应用层次分析法对注采工程安全风险进行量化评价，建立了CO₂驱注采工程安全风险层次结构模型。通过构造判断矩阵、一致性检验和权重计算，得出了注采工程安全风险影响因素的排序。CO₂驱注采工程安全风险可分为注采施工风险、CO₂腐蚀风险、安全管理风险、环境保护及人身安全风险等类别。CO₂驱注采安全风险量化评价结果表明，CO₂腐蚀是CO₂驱注采工程安全面临的最大风险，施工人员的安全意识也是影响注采工程安全的重要因素。注采工程安全风险的量化分析与评价为CO₂驱油安全风险决策和管理提供可靠依据，能够有效降低CO₂驱注采安全风险和指导注采安全施工。

Safety risk management of injection and production engineering is the key part of field application of CO flooding technology.To ensure the on-site injection and production safety of CO flooding and improve the safety risk management level of injection and production engineering, the safety risks in the process of injection and production were analyzed.Besides, the safety risks of injection and production engineering were evaluated quantitatively by means of analytical hierarchy process, and the hierarchical structure model of safety risk in the injection and production engineering of CO flooding was established.Then, the factors influencing the safety risks of injection and production engineering were ranked based on structure judgement matrix, consistency check and weight calculation.The safety risks in the injection and production engineering of CO flooding are divided into injection and production risk, CO corrosion risk, safety management risk, and environmental protection and personal safety risk.The quantitative evaluation on the safety risk in injection and production engineering of CO flooding shows that CO corrosion is the greatest safety risk in the injection and production engineering of CO flooding and the constructors' safety consciousness is the main factor influencing the safety of injection and production engineering.The quantitative analysis and evaluation on the safety risk of engineering and production engineering provides the reliable basis for the safety risk decision making and management of CO flooding, decreases the safety risk in the injection and production engineering of CO flooding effectively and provides the guidance for the safe operation of injection and production.

10.13639/j.odpt.2018.01.023