Experimental study of CO_(2) storage in water-flooded oilfields

作     者：Zubo Zhang Xu Chen Yuchen Qian Qingjie Liu Weifeng Lv Manli Luo Xiliang Fan 

作者机构：State Key Laboratory of Enhanced Oil RecoveryPetroChina Research Institute of Petroleum Exploration and DevelopmentBeijing 100083China Department of Polymer Science and EngineeringSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China China University of PetroleumBeijing 102249China 

出 版 物：《Petroleum Research》 (石油研究（英文）)

年 卷 期：2017年第2卷第4期

页      面：378-382页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 020205[经济学-产业经济学] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0818[工学-地质资源与地质工程] 0816[工学-测绘科学与技术] 

基　　金：supported by the National Basic Research Pro-gramof China(973 Program)(2011CB707300) National Science and Technology Major Project of China(2017ZX05070002) 

主　　题：reservoir saturation refined 

摘      要：CO_(2) is the main source of greenhouse emission,and the environment problem caused by greenhouse effect has drawn worldwide *** most oilfields in China,a method of waterflooding is usually used to enhance oil recovery,which is favorable to carry out CO_(2) injection *** CO_(2) injection in the water-flooded oilfields can not only store CO_(2),but also enhance the oil *** this article,the coreflooding tests with refined oil were conducted to investigate CO_(2) displacement characteristic in watersaturated formation under different injection rate and water-flooded oil reservoir under different formation pressure and oil saturation,then the CO_(2) storage capacity was *** testing result shows that the displacement efficiency increases with the rise of the CO_(2) injection rate,and the CO_(2) injection can enhance the oil recovery about 15%OOIP under the experimental *** injecting CO_(2) after the waterflooding,the CO_(2) storage capacity increases as the rise of the formation *** core-flooding tests also indicate that when the initial oil saturation of reservoir prior CO_(2) injection is higher,the oil recovery will be higher when injecting the same pore volume(PV)of CO_(2),and the CO_(2) storage capacity will be larger.