白永强;李娜;杨旭;张雁;张雨;

• 1:东北石油大学电子科学学院

• 2:黑龙江省高校校企共建测试计量技术及仪器仪表工程研发中心

• 3:东北石油大学地球科学学院

摘要(Abstract)：

为研究岩心微观孔隙结构在强碱三元复合驱替过程中的变化特征,以大庆油田南5-4-检725井855.0m处岩心为对象,通过原子力显微镜观察岩心形貌特征,定量分析孔喉宽度和深度;分析驱替过程中岩心样品的面孔率、孔喉宽度和深度、分形维数等参数变化反映的微观孔隙结构变化规律.结果表明:原子力显微镜获得的图像可以真实反映储层岩石微观形貌特征,储层微观孔隙结构具有二段式分形特点.微观孔隙结构变化特征在驱替初期,主要表现为岩石粒间颗粒运移;在驱替中后期,主要表现为强碱三元驱替剂与岩石相互作用,生成驱替剂残留或其他产物.该研究结果对分析强碱三元复合驱替后剩余油分布规律、制定后续开发方案具有指导意义.

关键词(KeyWords)：微观孔隙结构;储层;特征;原子力显微镜;分形

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51274068);; 黑龙江省教育厅科学技术研究项目(11551024)

作者(Author):白永强;李娜;杨旭;张雁;张雨;

Email:

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