调控壁面润湿性提高渗吸驱油采收率综合实验设计  

Comprehensive experimental design of controlling wall wettability to improve oil recovery by imbibition flooding

作　　者：贾寒[1] 田子豪 宋金勇 黄维安[1] JIA Han;TIAN Zihao;SONG Jinyong;HUANG Weian(Key Laboratory of Unconventional Oil&Gas Development,Ministry of Education,School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)石油工程学院,非常规油气开发教育部重点实验室,山东青岛266580

出　　处：《实验技术与管理》2022年第4期35-38,共4页Experimental Technology and Management

基　　金：国家自然科学基金项目(52174053);山东省自然科学基金项目(ZR2019MEE077);中国石油大学(华东)教学改革项目(KC-202009,SJ-202005)。

摘　　要：随着非常规油气资源开发的不断深入,其战略地位日趋重要。渗吸驱油是典型非常规致密油藏的重要开发方式之一,而目前实验教学中缺少相关综合实验设计。该文设计了接触角测定、计算机分子模拟和渗吸驱油综合实验,对表面活性剂和盐混合体系的润湿反转效果和提高采收率效果进行了评价。实验发现混合体系能显著降低亲油石英片表面的接触角,同时极大地提高了岩心渗吸驱油采收率。与传统实验相比,该实验不仅提高了学生的动手能力,还涉及计算机分子模拟的应用,进一步激发学生创新思维,锻炼学生研究能力,提高学生综合分析问题和解决问题的能力。With the development of unconventional oil and gas resources, its strategic position is becoming more and more important. Imbibition flooding is one of the important development methods of typical unconventional tight reservoirs, but there is a lack of relevant comprehensive experimental design in experimental teaching. In this paper, a comprehensive experiment of contact angle measurement, computer molecular simulation and imbibition flooding is designed to evaluate the wetting reversal effect and enhanced oil recovery effect of surfactant and salt mixture system. It is found that the mixed system can significantly reduce the contact angle on the surface of lithophile quartz sheet and greatly improve the oil recovery of core imbibition flooding. Compared with the traditional experiment, this experiment not only improves students’ practical ability, but also involves the application of computer molecular simulation, which further stimulates students’ innovative thinking, exercises their research ability, and improves their ability to comprehensively analyze and solve problems.

关 键 词：渗吸 表面活性剂 润湿反转 采收率 分子模拟 

分 类 号：TE348[石油与天然气工程—油气田开发工程]