张茜;孙卫;任大忠;刘登科;南珺祥;

• 1:西北大学大陆动力学国家重点实验室
• 2:西北大学地质学系
• 3:低渗透油气田勘探开发国家工程实验室

摘要(Abstract)：

在油-水-岩石多相体系中,通过改变岩石表面性质来提高原油采收率已成为目前能源行业和化学工业的研究热点。油藏砂岩表面带负电,通过加入不同类型表面活性剂影响砂岩表面带电行为,可以提高原油采收率。分析了3种典型表面活性剂TX-100(辛基苯基聚氧乙烯醚)、SDS(十二烷基硫酸钠)、CTAB(十六烷基三甲基溴化铵)对岩石表面性质的影响。通过计算表面活性剂在砂岩表面的吸附量和溶液表面张力的变化,分析了表面活性剂对砂岩表面润湿性、表面带电行为的影响。研究结果为提高特低渗透储层原油采收率提供了科学指导。

关键词(KeyWords)： 表面活性剂;特低渗透砂岩;表面荷电性;原油采收率;鄂尔多斯盆地

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项大型油气田及煤层气开发(2011ZX05044);; 中国博士后科学基金(2015M582699);; 陕西省科技统筹创新工程(2011KTZB01-04-01)

作者(Author): 张茜;孙卫;任大忠;刘登科;南珺祥;

Email:

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