油田驱油用CO_(2)泡沫剂体系研究进展  

State of the art in research on CO_(2) foam agents for oilfield applications

作　　者：任韶然[1] 杜翔睿 孙志雄 许鹏[2] 张攀锋 仝永帅 裴树峰 张亮[1] REN Shaoran;DU Xiangrui;SUN Zhixiong;XU Peng;ZHANG Panfeng;TONG Yongshuai;PEI Shufeng;ZHANG Liang(School of Petroleum Engineering in China University of Petroleum(East China),Qingdao 266580,China;Xinjiang Oilfield Company,PetroChina,Karamay 834000,China;China Offshore Oil Engineering Company Limited,Tianjin 300451,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]中国石油新疆油田分公司,新疆克拉玛依834000 [3]海洋石油工程股份有限公司,天津300451

出　　处：《中国石油大学学报（自然科学版）》2022年第4期102-108,共7页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(51174225)。

摘　　要：利用CO_(2)泡沫体系控制气窜和降低气体流度是CO_(2)驱油工艺成功的关键技术。但由于CO_(2)的活性较高,常规表面活性剂形成的CO_(2)泡沫在油藏条件下没有氮气和天然气泡沫那样稳定,因此需要研发具有良好抗温、抗盐和稳定性能的CO_(2)表面活性剂体系。对CO_(2)泡沫剂体系的研发和应用进展进行总结描述,分析不同CO_(2)泡沫用表面活性剂体系的有效性及作用机制,包括基于常规表面活性剂的CO_(2)泡沫体系、CO_(2)气溶性表面活性剂体系、CO_(2)敏感性表面活性剂体系和不同表面活性剂/泡沫稳定剂复配体系,对高效CO_(2)表面活性剂的进一步研发和现场应用提供指导。CO_(2) foams can be applied to control gas channeling and reduce gas mobility,which is essential for successful CO_(2) flooding processes.However,aqueous CO_(2) solution is acidic,and CO_(2) has high solubility both in water and oil at high pressure,which make CO_(2) foam generated by conventional surfactants not as stable as nitrogen and natural gas foams under oil reservoir conditions.Therefore,it is necessary to develop CO_(2) foaming agents with good temperature resistance,salt resistance and high stability.In this paper,the development and application of CO_(2) foam agents were summarized and described.Based on the interactions among supercritical CO_(2)-water-surfactants and their effects on the stability of CO_(2) foams,the effectiveness and foaming mechanisms of different CO_(2) foam agents were analyzed,including CO_(2) foam based on conventional surfactants,CO_(2) gas soluble surfactants and CO_(2) sensitive foam agents.The synergistic combinations of different surfactants and foam stabilizers were also described,which can provide useful guidance for further development and field applications of highly effective CO_(2) foams.

关 键 词：CO_(2)泡沫 表面活性剂 气溶性表面活性剂 CO_(2)敏感性表面活性剂 复配体系 

分 类 号：TE347[石油与天然气工程—油气田开发工程]