| 弱碱石油磺酸盐提高采收率技术室内实验研究 |
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| 引用本文： | 冉法江.弱碱石油磺酸盐提高采收率技术室内实验研究[J].大庆师范学院学报,2011(6):86-89. |
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| 作者姓名： | 冉法江 |
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| 作者单位： | 大庆油田第四采油厂; |
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| 摘 要： | 碱/表活剂/聚合物(ASP)三元复合驱是目前提高采收率效果较好的一项技术,但强碱会带来较为严重的结垢现象。为完善三元复合驱技术,开展了弱碱石油磺酸盐提高采收率技术研究,通过界面活性范围、界面张力稳定性、乳化、吸附和室内岩心驱油实验较系统地评价了弱碱石油磺酸盐体系。研究显示,所评价三元体系界面活性范围很宽,且45℃恒温90天仍可达到超低界面张力;0.4%表活剂+1.2%Na2CO3三元体系具有较好的抗吸附能力;人造岩心可提高采收率27.55%,贝雷岩心可提高24.11%。
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| 关 键 词： | Na2CO3 石油磺酸盐 界面张力 |
Laboratory Experiment Study of EOR Technology of Weak Base and Petroleum Sulfonate ASP Flooding |
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| RAN Fa-jiang.Laboratory Experiment Study of EOR Technology of Weak Base and Petroleum Sulfonate ASP Flooding[J].Journal of Daqing Normal University,2011(6):86-89. |
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| Authors: | RAN Fa-jiang |
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| Institution: | RAN Fa-jiang (Plant of No.4,Daqing Oilfield,Daqing 163511,China) |
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| Abstract: | Alkalina/surfactant/polymer ASP flooding is a better technology of EOR,but strong base will bring serious scaling phenomenon.To perfect the ASP flooding,EOR technology of weak base and petroleum sulfonate ASP flooding have been carried out.By the interfacial activity range,the stability of the interface tension,emulsification,adsorption and interior core flooding experiment,the weak base petroleum sulfonate system has been evaluated.The study revealed,the ternary system of weak base + petroleum sulfonate +H... |
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| Keywords: | Na2CO3 petroleum sulfonate interface tension |
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