近日，由王旱祥教授指导、博士生陈升山撰写的论文《Risk assessment of corroded casing based on analytic hierarchy process and fuzzy comprehensive evaluation》被“Petroleum Science”录用。“Petroleum Science”属于工程技术大类2区（中科院基础版分区），2019年11月入选国家七部委“中国科技期刊卓越行动计划”的“领军期刊”项目，主要刊登石油科学领域高质量原创性研究论文和综述性论文。
Casing corrosion during carbon dioxide injection or storage results in significant economic loss and increased production risks. Therefore, in this paper, a corroded casing risk assessment model based on analytic hierarchy process and fuzzy comprehensive evaluation is established to identify potential risks in time. First, the corrosion rate and residual strength characteristics are analyzed through corrosion tests and numerical simulations, respectively, to determine the risk factors that may lead to an accident. Then, an index system for corroded casing risk evaluation is established based on six important factors: temperature, carbon dioxide partial pressure, flow velocity, corrosion radius, corrosion depth and wellhead pressure. Subsequently, the index weights are calculated via the analytic hierarchy process. Finally, the risk level of corroded casing is obtained via the fuzzy comprehensive evaluation. The corroded casing risk assessment model has been verified by a case well, which shows that the model is valuable and feasible. It provides an effective decision-making method for the risk evaluation of corroded casing in carbon dioxide injection well, which is conductive to improve the wellbore operation efficiency.