| 锦州油田无碱二元复合驱实验研究 |
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| 引用本文： | 刘义刚,卢琼,史锋刚.锦州油田无碱二元复合驱实验研究[J].海洋地质译丛,2010(1):48-52. |
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| 作者姓名： | 刘义刚 卢琼 史锋刚 |
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| 作者单位： | [1]中海石油（中国）有限公司天津分公司,天津塘沽300452 [2]西南石油大学,四川成都610500 [3]华鼎鸿基能源工程技术（北京）有限公司,北京100089 [4]中海石油采油技术服务公司,天津塘沽300451 |
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| 摘 要： | 针对锦州油田的条件及开采现状，进行了α烯烃磺酸盐类表面活性剂HDS及SNF聚合物组成的二元复合体系（SIP）提高采收率的室内研究。考查了HDS表面活性剂的界面张力特性以及吸附特征；进行了二元复合体系的界面张力、表观黏度及岩心驱替等实验。结果表明：HDS表面活性剂油水平衡界面张力可以降低到超低数量级（10mN／m），吸附损失小（0．2％浓度HDS≤2．0mg／g）；二元复合体系油水平衡界面张力也能达到超低；黏度保持率高（≥90％），配伍性好，相对水驱提高采收率20％以上。故HDS表面活性剂是性能优良的表面活性剂，HDS与SNF聚合物组成的无碱二元复合体系能大大提高锦州油田的采收率，无碱二元复合驱是适合锦州油田开发的新技术。
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| 关 键 词： | 二元复合驱 超低界面张力 α-烯烃磺酸盐表面活性剂 |
The alkali-free SP flooding experiment in Jinzhou Oilfield |
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| Authors: | Liu Yigang Lu Qiong Shi Fenggang |
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| Institution: | 1. Tianjin Branch of CNOOC China Limited, Tanggu 300452; 2. Southwest Petroleum University, Chengdu 610500; 3. Holding EnergyEngineering ( Beijing) Co. Ltd., Beijing 100089; 4. CNOOC Oil fieM Technology Services Co. Ltd. , Tanggu 300451) |
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| Abstract: | Aimed to enhance oil recovery in Jinzhou Oilfield, indoor experiment are carried out on α-olefine sulphonate surfactant HDS and SNF polymer combination flooding. Some experiments as interracial tension characteristics, HDS absorption loss, SP system viscosity retention and core flooding experiments are carried out based on the reservoir condition and current recovery status. The experiment results show the HDS surfactant and the SP combination system steadily reduced oil/water interracial tension obviously below 10-3 mN/m, HDS absorption loss （0.2% HI）S loss less than 2.0 mg/g） was small, system viscosity retention rate （≥ 90% ） was high and greatly enhanced oil recovery up to 20% compared with water flooding. Those experiments proved lIDS surfactant is the superior agent that suitable for Jinzhou Oilfield, the alkali-free SP flooding technology has bright future that can enhance the oil recovery greatly. |
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| Keywords: | SP flooding ultralow interracial tension α-olefine sulphonate surfactant |
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