| 低渗透油藏复合表面活性剂水驱试验 |
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| 引用本文： | 王小泉,樊西惊.低渗透油藏复合表面活性剂水驱试验[J].西安石油大学学报(自然科学版),2004,19(5):31-35. |
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| 作者姓名： | 王小泉 樊西惊 |
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| 作者单位： | 西安石油大学,化学化工学院,陕西,西安,710065 |
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| 摘 要： | 介绍了应用一种价格较低廉的石油磺酸盐复合表面活性剂的新型驱油剂对低渗—特低渗油藏的驱替试验.采用石油磺酸盐并复配以辅助表面活性剂所形成的驱替剂与储层流体相容性好,吸附损耗量小,且不发生沉淀.该复合表面活性驱油剂降低油/水界面张力至0 903mN/m,改善了岩石润湿性,投入产出比达到1∶3 26,注驱油剂比单纯注水开发提高采收率9%.
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| 关 键 词： | 复合表面活性剂 石油磺酸盐 低渗透油藏 驱油剂 |
| 文章编号： | 1001-5361(2004)05-0031-04 |
| 修稿时间： | 2004年2月18日 |
Water drive experiment of low-permeability reservoir using compound surfactant |
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| WANG Xiao-quan,FAN Xi-jing.Water drive experiment of low-permeability reservoir using compound surfactant[J].Journal of Xian Shiyou University,2004,19(5):31-35. |
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| Authors: | WANG Xiao-quan FAN Xi-jing |
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| Abstract: | A water drive experiment of low-permeability reservoir is introduced, in which a compound surfactant is used. The compound surfactant is compounded by petroleum sulfonate with auxiliary surfactant, and its cost is low. The displacement fluid containing the compound surfactant has good compatibility with reservoir fluid, there is a little adsorption loss, and no precipitate is produced. The compound surfactant makes O/W interfacial tension reduce to 0.903 mN/m, and it improves the wettability of rock. The ratio of input to output reaches to 1∶3.26. The compound surfactant can makes the recovery factor of waterflooding development be enhanced by 9%. |
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| Keywords: | compound surfactant petroleum sulfonate low-permeability reservoir oil displacement agent |
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