驱油FPS-B剂的表界面化学性能和微观驱油机理

doi:10.7623/syxb201206014

石油学报 ›› 2012, Vol. 33 ›› Issue (6): 1023-1027.DOI: 10.7623/syxb201206014

驱油FPS-B剂的表界面化学性能和微观驱油机理

江雪源 1 董加宇 1 李宜强 2

1.大庆油田有限责任公司第三采油厂黑龙江大庆 163113; 2.中国石油大学提高采收率研究中心北京 102249

收稿日期:2012-06-08 修回日期:2012-09-01 出版日期:2012-11-25 发布日期:2012-12-07
通讯作者: 江雪源
作者简介:江雪源,女,1976年7月生,2007年获大庆石油学院硕士学位,现为大庆油田第三采油厂工程师，主要从事三次采油提高采收率的研究与现场应用工作。
基金资助:
国家自然科学基金项目(No.51074172)资助。

Surface and interface chemical properties and microscopic oil displacement mechanism of the FPS-B agent in flooding

JIANG Xueyuan 1 DONG Jiayu 1 LI Yiqiang 2

Received:2012-06-08 Revised:2012-09-01 Online:2012-11-25 Published:2012-12-07

摘要/Abstract

摘要：

利用环境扫描电子显微镜观察了FPS-B剂胶束聚集体和乳状液的微观形态。采用静态实验和核磁共振法研究FPS-B剂的乳化增溶性和润湿性，并进行了模型驱油实验。结果表明，FPS-B剂具有较强的乳化增溶性,并且在不同含水率条件下形成不同类型的乳状液,不但可以保持岩石的水湿状态而且可以将亲油岩石不同程度地转变成亲水状态。在此基础上，从分子结构和性质方面分析了产生这种现象的原因及机理。微观驱油实验结果表明，在水湿和油湿岩心模型中FPS-B剂驱的采收率提高值接近三元复合驱提高值，高于二元驱提高值，扩大了洗油效率，提高了原油采收率。

关键词: FPS-B剂, 乳化增溶性, 润湿性, 微观仿真模型, 洗油效率

Abstract:

Microcosmic characteristics of the micellar aggregate and emulsion of the type-B functional polymer surfactant (FPS-B) agent were examined by scanning electronic microscopy. The emulsion solubilization and wettability of the FPS-B agent were studied in static and NMR experiments and an oil displacement experiment of the microscopic simulation model was performed simultaneously. The results showed that the FPS-B agent is of a strong emulsion solubilization and can form different types of emulsion under different moisture conditions, which can not only keep the water wet behavior of rocks but also to some extent change an oil-prone state into a water-prone one. The reason of this chemical phenomenon was analyzed in terms of molecular structure and nature. Microscopic oil displacement experiments confirmed that the EOR of the FPS-B agent flooding is similar to that of the ASP flooding but higher than that of the S/P flooding in oil-wet and water-wet core models, therefore, this microscopic oil displacement model can enhance both the sweep efficiency and the oil recovery.

Key words: FPS-B agent, emulsion solubilization, wettability, microscopic simulation model, sweep efficiency

江雪源董加宇李宜强 . 驱油FPS-B剂的表界面化学性能和微观驱油机理[J]. 石油学报, 2012, 33(6): 1023-1027.

JIANG Xueyuan DONG Jiayu LI Yiqiang . Surface and interface chemical properties and microscopic oil displacement mechanism of the FPS-B agent in flooding[J]. Editorial office of ACTA PETROLEI SINICA, 2012, 33(6): 1023-1027.

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驱油FPS-B剂的表界面化学性能和微观驱油机理

Surface and interface chemical properties and microscopic oil displacement mechanism of the FPS-B agent in flooding

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