| 碱／表面活性剂二元复合驱提高普通稠油采收率室内实验研究 |
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| 引用本文： | 周雅萍,刘家林,于涛,李亚文,潘琍华. 碱／表面活性剂二元复合驱提高普通稠油采收率室内实验研究[J]. 精细石油化工进展, 2009, 10(9): 20-23 |
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| 作者姓名： | 周雅萍 刘家林 于涛 李亚文 潘琍华 |
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| 作者单位： | 中油辽河油田分公司勘探开发院,盘锦,124010 |
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| 摘 要： | 针对辽河油区普通稠油锦45块于Ⅱ油层油藏条件，在室内进行了碱／表面活性剂二元复合驱提高原油采收率实验研究。实验筛选出2种碱剂Na2CO3和NaOH，从6种表面活性剂中优选出分别适合于强碱NaOH和弱碱Na2CO3的2种表面活性剂为QYJ-7和J90；考察了碱与表面活性剂之间的最佳协同效应用量范围，碱／表面活性剂组成的最佳复合驱油体系分别为0．2％J90＋1．1％Na2CO3和0．3％QYJ-7＋0．5％NaOH；筛选出的复合体系使水与原油间的界面张力都达到10^-3mN／m数量级以下，室内驱油试验表明，注入段塞体积0．3PV时，驱油效率皆提高20％以上，地层温度下放置30d，体系与原油间的界面张力在10^-2-10^-3mN／m范围，变化不大，表现出较好的长期热稳定性。
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| 关 键 词： | 辽河油区锦45块 碱／表面活性剂复合体系 界面张力 热稳定性 驱油效率 |
Laboratory Study on Increase of Heavy Oil Recovery Using Alkali/Surfactant Binary Flooding System |
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| Zhou Yaping,Liu Jialin,Yu Tao,Li Yawen,Pan Lihua. Laboratory Study on Increase of Heavy Oil Recovery Using Alkali/Surfactant Binary Flooding System[J]. Advances in Fine Petrochemicals, 2009, 10(9): 20-23 |
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| Authors: | Zhou Yaping Liu Jialin Yu Tao Li Yawen Pan Lihua |
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| Affiliation: | Zhou Yaping Liu Jialin Yu Tao Li Yawen Pan Lihua (Research Institute of Oil Exploration and Development,Liaohe Oilfield Company of PetroChina,Panjin 124010) |
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| Abstract: | The laboratory study on increase of oil recovery using alkali/surfactant was carried out according to the condition of oil formation in the second layer of Jin Block 45 containing conventional heavy oil,Liaohe Oilfield. Two kinds of alkalis including Na_2CO_3 and NaOH were screened by experiment.Two kinds of surfactants suitable for NaOH and Na_2CO_3 were selected from six kinds of surfactants,which were QYJ-7 and J 90 respectively.The optimum dosage of alkali/surfactant having synergistic effect was determ... |
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| Keywords: | Liaohe Oilfield Jin block 45 alkali/surfactant binary flooding system interfacial tension thermal stability oil displacement efficiency |
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