| 复合驱中界面张力数量级与提高采收率的关系研究 |
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| 引用本文： | 陈中华,李华斌,曹宝格. 复合驱中界面张力数量级与提高采收率的关系研究[J]. 海洋石油, 2005, 25(3): 53-57 |
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| 作者姓名： | 陈中华 李华斌 曹宝格 |
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| 作者单位： | 西南石油学院,提高采收率国家重点实验室,四川,成都,610500;西南石油学院,提高采收率国家重点实验室,四川,成都,610500;西南石油学院,提高采收率国家重点实验室,四川,成都,610500 |
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| 摘 要： | 文章分析了表面活性剂/聚合物二元复合驱和碱/表面活性剂/聚合物三元复合驱驱油指标(超低界面张力必须达到10-3mN/m)理论的缺陷;在大量岩心试验的基础上,比较了不同界面张力下的采收率值,认为平衡界面张力为10-3mN/m不是表面活性剂驱油及复合驱的必要条件,平衡界面张力为10-2mN/m时也能达到与前者同样的驱油效果;并且只要瞬时界面张力达到10-3mN/m,也能达到较好的驱油效果,从而为表面活性剂复合驱的广泛应用提供了实验基础。
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| 关 键 词： | 提高采收率 岩芯试验 表面活性剂 平衡界面张力 瞬时界面张力 |
| 文章编号： | 1008-2336（2005）03-0053-05 |
| 收稿时间： | 2004-09-24 |
| 修稿时间： | 2004-09-24 |
Study on the Relation between Level of IFT and Enhanced Oil Recovery |
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| CHEN Zhong-hua,LI Hua-bin,CAO Bao-ge. Study on the Relation between Level of IFT and Enhanced Oil Recovery[J]. Offshore Oil, 2005, 25(3): 53-57 |
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| Authors: | CHEN Zhong-hua LI Hua-bin CAO Bao-ge |
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| Abstract: | The author analyzes the defect of the theory about surfactant/polymer flooding and alkaline/ surfactant/polymer flooding in which the lowest interfacial tension must reaches 10^-3mN/m. On the basis of plenty of displacement tests, the result of comparing with the enhanced oil recovery values under different IFT shows that the value of interfacial tension, 10^-3mN/m, is not the necessary condition of surfactant flooding, and it can reach the same flooding effect when the value of interfacial tension is 10^-2 mN/m. And if only the dynamic interfacial tension can reach 10^-3mN/m, we can acquire a better flooding effect. So the experiment basis can be provided for the wide application of surfactant/polymer flooding. |
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| Keywords: | Enhanced oil recovery displacement test surfactant interracial tension dynamic interracial tension |
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