陈小龙^1,2,李宜强^1,2,陈诚^1,2,李辉³

• 1:油气资源与探测国家重点实验室(中国石油大学(北京))，北京 102249
• 2:中国石油大学(北京)石油工程学院，北京 102249
• 3:中国石油大港油田采油工艺研究院，天津 300280

摘要(Abstract)：

为了研究聚表剂乳状液在多孔介质中生成及稳定能力，进行了油聚同注与单一注聚实验。以多孔介质为乳状液的生成载体研究了聚表剂浓度、油水比和运移距离对聚表剂乳状液生成及稳定的影响规律。结果表明，缔合结构形成的腔体对残余油的捕集作用是聚表剂乳状液产生与稳定的重要作用机制。聚表剂在多孔介质中运移距离越远，所生成的乳状液粒径越大，稳定性越弱；与运移距离相反，油水比与聚表剂浓度越大，越容易生成乳状液，且所生成乳状液的粒径越小，稳定性越好。综合考虑各因素对乳化作用的影响，将压力梯度与毛细管数相结合作为聚表剂乳状液的表征参数，该参数对于表征聚表剂在多孔介质中的乳化发生程度具有较好的适用性。

关键词(KeyWords)： 聚表剂;多孔介质;乳状液;毛细管数

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项（ZX20160158）。

作者(Author): 陈小龙^1,2,李宜强^1,2,陈诚^1,2,李辉³

DOI: 10.3969/j.issn.1003-9015.2020.06.005

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