| 第 52 卷第 5 期 |  | Vol. 52 No. 5 | | 2022 年 10 月 | Oct 2022 |
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所屬欄目：表面活性劑
表面活性劑界面性能對遼河油田錦16塊原油驅油效率影響研究 |
| 郭麗娜，張艷娟，侯力嘉，郭 斐，徐玲玲
（遼河油田勘探開(kāi)發(fā)研究院，遼寧 盤(pán)錦 124010） |
| 摘 要：化學(xué)復合驅油技術(shù)是通過(guò)降低油水界面張力，改善驅替相的粘度來(lái)提高原油采收率。表面活性劑的界面性能是其驅油特性的主要參數。對六種表面活性劑進(jìn)行了單劑界面活性、復合體系界面活性評價(jià)、復合體系增粘性評價(jià)，并利用三層非均質(zhì)模型開(kāi)展物理模擬實(shí)驗，評價(jià)并比較不同表面活性劑的驅油能力。30 min內達到超低界面張力并快速拉斷的表面活性劑，驅油效率最高；30 min內界面張力達到10-2并快速拉斷的表面活性劑，驅油效率較高；30 min內能剛剛達到超低界面張力，但2 h內界面張力不再變化的表面活性劑驅油效率最低。實(shí)驗結果表明，復合體系界面張力數量級、界面張力降低速度、油滴斷開(kāi)時(shí)間對提高采收率有較大影響。 |
| 關(guān)鍵詞：表面活性劑；界面張力；驅油效率 |
| 中圖分類(lèi)號：TE39 文獻標識碼：A 文章編號：1009-9212（2022）05-0040-04 |
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| Effect of Surfactant Performance on Improving Oil Displacement Efficiency |
| GUO Li-na, ZHANG Yan-juan, HOU Li-jia, GUO Fei, XU Ling-ling
(Liaohe Oil Field Exploration and Development Research Institute, Panjin 124010, China) |
| Abstract：Chemical composite flooding technology is to improve the yield of crude oil by reducing oil-water interfacial tension and improving the viscosity of displacement phase. The performance of surfactant is decided by its oil displacement characteristics. The single agent interface activity, composite system interface activity and composite system viscosity enhancement of six surfactants were evaluated. Physical simulation experiments were carried out using the three-layer heterogeneous model to evaluate and compare the oil displacement capacity of different surfactants. The surfactant that reached ultra-low interfacial tension and broke quickly within 30 min had the highest oil displacement efficiency. The experimental results showed that the order of magnitude of interfacial tension of the composite system, the reduction rate of interfacial tension and the disconnection time of oil phase had a great impact on EOR. |
| Key words：surfactant; interfacial tension; oil displacement efficiency |
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基金項目：中石油天然氣股份有限公司重大科技專(zhuān)項（2017E-1603）。
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作者簡(jiǎn)介：郭麗娜（1980—），女，遼寧錦州人，高級工程師，碩士研究生，研究方向：化學(xué)驅提高采收率（E-mail：guoln@petrochina.com.cn）。
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收稿日期：2022-04-27
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