三元复合体系启动水驱后剩余油微观机理
为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体薄片的真实孔喉制作微观仿真模型,并进行微观模型驱油实验.结果表明:水驱后剩余油主要以簇团状、膜状和孤岛状分布为主,少部分以喉道状和盲端/角隅状分布;三元复合体系的超低界面张力和高粘弹特性,能够乳化油滴,将油珠拉成油丝,并能剥离油膜,驱替出盲端油,进而大幅度降低水驱后簇团状、膜状剩余油,增加孤岛状油滴的数量,从而提高驱油效率.驱油效果定量分析结果表明:水驱驱油效率为50%,复合驱驱油效率最高可达38.68%;2 种微观模型的最终驱油效率最高可达8...
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Published in | 油气地质与采收率 Vol. 22; no. 5; pp. 84 - 88 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
中国石油三次采油重点实验室低渗油田提高采收率应用基础理论研究室,北京102249
2015
中国石油大学(北京)提高采收率研究院,北京102249 石油工程教育部重点实验室,北京102249 |
Subjects | |
Online Access | Get full text |
ISSN | 1009-9603 |
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Abstract | 为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体薄片的真实孔喉制作微观仿真模型,并进行微观模型驱油实验.结果表明:水驱后剩余油主要以簇团状、膜状和孤岛状分布为主,少部分以喉道状和盲端/角隅状分布;三元复合体系的超低界面张力和高粘弹特性,能够乳化油滴,将油珠拉成油丝,并能剥离油膜,驱替出盲端油,进而大幅度降低水驱后簇团状、膜状剩余油,增加孤岛状油滴的数量,从而提高驱油效率.驱油效果定量分析结果表明:水驱驱油效率为50%,复合驱驱油效率最高可达38.68%;2 种微观模型的最终驱油效率最高可达88.68%,4种三元复合体系的最终驱油效率均在77%以上. |
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AbstractList | TE357.43; 为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体薄片的真实孔喉制作微观仿真模型,并进行微观模型驱油实验.结果表明:水驱后剩余油主要以簇团状、膜状和孤岛状分布为主,少部分以喉道状和盲端/角隅状分布;三元复合体系的超低界面张力和高粘弹特性,能够乳化油滴,将油珠拉成油丝,并能剥离油膜,驱替出盲端油,进而大幅度降低水驱后簇团状、膜状剩余油,增加孤岛状油滴的数量,从而提高驱油效率.驱油效果定量分析结果表明:水驱驱油效率为50%,复合驱驱油效率最高可达38.68%;2种微观模型的最终驱油效率最高可达88.68%,4种三元复合体系的最终驱油效率均在77%以上. 为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体薄片的真实孔喉制作微观仿真模型,并进行微观模型驱油实验.结果表明:水驱后剩余油主要以簇团状、膜状和孤岛状分布为主,少部分以喉道状和盲端/角隅状分布;三元复合体系的超低界面张力和高粘弹特性,能够乳化油滴,将油珠拉成油丝,并能剥离油膜,驱替出盲端油,进而大幅度降低水驱后簇团状、膜状剩余油,增加孤岛状油滴的数量,从而提高驱油效率.驱油效果定量分析结果表明:水驱驱油效率为50%,复合驱驱油效率最高可达38.68%;2 种微观模型的最终驱油效率最高可达88.68%,4种三元复合体系的最终驱油效率均在77%以上. |
Author | 吴晨宇 侯吉瑞 赵凤兰 张凤敏 郝宏达 刘刚 |
AuthorAffiliation | 中国石油大学(北京)提高采收率研究院,北京102249 中国石油三次采油重点实验室低渗油田提高采收率应用基础理论研究室,北京102249 石油工程教育部重点实验室,北京102249 |
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Author_FL | Liu Gang Zhang Fengmin Zhao Fenglan Hao Hongda Wu Chenyu Hou Jirui |
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DocumentTitle_FL | Study on the microscopic mechanism of driving remaining oil by ASP compound system after water flooding |
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Publisher | 中国石油三次采油重点实验室低渗油田提高采收率应用基础理论研究室,北京102249 中国石油大学(北京)提高采收率研究院,北京102249 石油工程教育部重点实验室,北京102249 |
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Snippet | 为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体薄片的真实... TE357.43; 为了提高水驱后原油采收率,三元复合驱技术被广泛应用到大庆油区萨尔图油田二类油层中.为明确三元复合体系启动水驱后剩余油机理,根据研究区二类油层天然岩心铸体... |
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Title | 三元复合体系启动水驱后剩余油微观机理 |
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