| 油藏岩石润湿性对气驱剩余油微观分布的影响机制 |
| |
| 引用本文： | 杨永飞,姚军,M.I.J.van Dijke.油藏岩石润湿性对气驱剩余油微观分布的影响机制[J].石油学报,2010,31(3):467-470. |
| |
| 作者姓名： | 杨永飞 姚军 M.I.J.van Dijke |
| |
| 作者单位： | 1中国石油大学石油工程学院 山东青岛 266555； 2英国赫瑞-瓦特大学石油工程研究所 苏格兰 EH14 4AS |
| |
| 基金项目： | 国家重点基础研究发展规划(973计划)，国家留学基金委和中国石油大学(华东)研究生创新基金 |
| |
| 摘 要： | 注气驱是目前油田进一步提高原油采收率的重要措施之一，油藏岩石润湿性对注气的效果有重要影响。基于三维孔隙级网络模型，运用孔隙级流动模拟方法，系统研究了6种不同润湿性油藏注气过程的油气水孔隙级分布和气驱效果。结果表明，水湿和MWS混合润湿(小孔隙为油湿)体系中的注气效果相对于另外4种润湿体系较差；这4种效果较好的润湿体系分别是油湿、中性润湿、MWL混合润湿(大孔隙为油湿)和部分润湿（其中30%孔隙水湿）体系。
|
| 关 键 词： | 气驱油藏 岩石润湿性 剩余油分布 三维孔隙网络模型 注气效率 |
| 收稿时间： | 2009-08-10 |
| 修稿时间： | |
Effect of reservoir rock wettability on microcosmic distribution of residual oil after gas displacement |
| |
| YANG Yongfei,YAO Jun,M.I.J.van Dijke.Effect of reservoir rock wettability on microcosmic distribution of residual oil after gas displacement[J].Acta Petrolei Sinica,2010,31(3):467-470. |
| |
| Authors: | YANG Yongfei YAO Jun MIJvan Dijke |
| |
| Abstract: | Gas injection is one of the most important methods to enhance oil recovery. The rock wettability of reservoir has a great effect on gas displacement efficiency. Based on a three-dimensional pore-scale network model, the distribution and displacement efficiencies of gas injection in six reservoirs with different wettability were investigated using the pore-scale flow modeling method. The results show that gas injection efficiency in water-wet and mixed-wet small (small pores are oil-wet) reservoirs is poorer than that in oil-wet, intermediate-wet, mixed-wet large (large pores are oil-wet) and fractionally-wet (30% of pores is water-wet) systems. |
| |
| Keywords: | gas-driven reservoir rock wettability residual oil distribution three-dimensional pore network model gas injection efficiency |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《石油学报》浏览原始摘要信息 |
|
点击此处可从《石油学报》下载全文 |
