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| CO2驱过程中不同相态流态对采收率的影响 | |
| 引用本文： | 徐阳,任韶然,章杨,郭平. CO2驱过程中不同相态流态对采收率的影响[J]. 西安石油大学学报(自然科学版), 2012, 27(1): 53-56,120 |
| 作者姓名： | 徐阳 任韶然 章杨 郭平 |
| 作者单位： | 1. 中国石化集团国际石油勘探开发有限公司,北京,100083 2. 中国石油大学(华东)石油工程学院,山东东营,257061 3. 中国石化胜利油田分公司地质科学研究院,山东东营,257015 |
| 基金项目： | 国家"973"课题，山东省自然科学基金 |
| 摘 要： | CO2驱过程中相态、流态的变化均会对最终采收率有所影响.为研究不同相态及流态条件下采收率的变化情况,以压力判断相态的标准、雷诺数为判断流态的方法进行人造低渗岩心CO2驱替实验.分析实验结果认为:不同混相条件原油采收率不同,混相压力条件下采出效果最佳；以雷诺数作为划分流态的标准,实验条件下,采收率随驱替速度的增加呈现先增后减的变化,存在提高采收率的最佳流速. |
| 关 键 词： | 二氧化碳驱 岩心驱替实验 相态 流态 采收率 |
Influence of phase state and flow regime on recovery factor in CO2 flooding |
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| XU Yang,REN Shao-ran,ZHANG Yang,GUO Ping. Influence of phase state and flow regime on recovery factor in CO2 flooding[J]. Journal of Xian Shiyou University, 2012, 27(1): 53-56,120 | |
| Authors: | XU Yang REN Shao-ran ZHANG Yang GUO Ping |
| Affiliation: | 1.International Petroleum Exploration and Development Corporation,Sinopec,Beijing 100083,China;2.Faculty of Petroleum Engineering,China University of Petroleum(East China),Dongying 257061,Shandong,China;3.Research Institute of Geology Science,Shengli Oilfield Company,Sinopec,Dongying 257015,Shandong,China) |
| Abstract: | The variation of phase state and flow regime will produce an effect on ultimate recovery factor in the process of CO2 flooding.The relationship between recovery factor and phase state or flow regime was studied through the CO2 flooding experiments of artificial low-permeability core,in which the phase state is controlled by pressures and flow regime is judged by Reynolds number.The experiment results show that miscible flooding is the best way for enhancing recovery factor,and that the recovery factor decreases firstly and then increases with the increase of flow rate,so there is the optimum flow rate. |
| Keywords: | CO2 flooding core oil displacement experiment phase state flow regime recovery factor |
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