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通过研究二氧化碳捕集、运输、注入和原油开采4个主要技术环节,建立了二氧化碳捕集与封存结合提高石油采收率全流程(CO_2-EOR)经济性评价模型。该模型反映了CO_2-EOR系统复杂性和交互性,其结果能为CO_2-EOR项目规划提供科学决策支持。将模型应用于中国的煤化工厂碳捕集与封存结合提高石油采收率项目的案例研究表明:在油价50.0$/bbl和驱油比4.0 t CO_2/t oil的情景下,每年80万t规模的煤化工厂结合CO_2-EOR项目的净收益可达9.36亿元,项目内部收益率可以达到8.44%。煤化工厂结合CO_2-EOR的项目具有优先发展的潜在机会。
Through the study of four main technical aspects of carbon dioxide capture, transportation, injection and crude oil recovery, a CO 2 -EOR economic evaluation model combining carbon dioxide capture and storage with oil recovery was established. The model reflects the complexity and interactivity of the CO_2-EOR system. The results can provide scientific decision support for the CO_2-EOR project planning. The case study of applying the model to China’s coal chemical plant in combination with carbon capture and storage to enhance oil recovery projects shows that at an oil price of 50.0 $ / bbl and oil displacement ratio of 4.0 t CO 2 / t oil, an annual scale of 800,000 t Coal chemical plant with CO_2-EOR project net income of 936 million yuan, the project internal rate of return can reach 8.44%. Coal chemical plants combined CO_2-EOR project has the potential to give priority to development.