高盐油藏纳米材料协同聚合物/表面活性剂复合体系增效机制与驱油效果

doi:10.7657/XJPG20260106

新疆石油地质 ›› 2026, Vol. 47 ›› Issue (1): 57-63.doi: 10.7657/XJPG20260106

高盐油藏纳米材料协同聚合物/表面活性剂复合体系增效机制与驱油效果

刘哲宇¹(), 冯耀国², 王奎斌³, 王文絮¹, 高文彬⁴, 李宜强¹()

1.中国石油大学（北京） a.石油工程学院；b.油气资源与工程全国重点实验室，北京 102249
2.中国石油大庆油田分公司第二采油厂，黑龙江大庆 163414
3.中国石油辽河油田分公司勘探开发研究院，辽宁盘锦 124010
4.中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 100007

收稿日期:2024-12-17 出版日期:2026-02-01 发布日期:2026-01-23
通讯作者: 李宜强 E-mail:zheyu.liu@cup.edu.cn;yiqiangli@cup.edu.cn
作者简介:刘哲宇（1990-），男，辽宁盘锦人，副教授，博士，复杂油藏提高采收率，（Tel）18888872627（Email）zheyu.liu@cup.edu.cn
基金资助:
国家自然科学基金(52004305)

Synergistic Mechanism and Displacement Efficiency of Nanomaterial-Assisted Polymer/Surfactant Flooding in High-Salinity Oil Reservoirs

LIU Zheyu¹(), FENG Yaoguo², WANG Kuibin³, WANG Wenxu¹, GAO Wenbin⁴, LI Yiqiang¹()

1. China University of Petroleum (Beijing), a. School of Petroleum Engineering; b. State Key Laboratory of Petroleum Resources and Engi-neering, Beijing 102249, China
2. No.2 Oil Production Plant, Daqing Oilfield Company Limited, PetroChina, Daqing, Heilongjiang 163414, China
3. Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124010, China
4. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 100007, China

Received:2024-12-17 Online:2026-02-01 Published:2026-01-23
Contact: LI Yiqiang E-mail:zheyu.liu@cup.edu.cn;yiqiangli@cup.edu.cn

摘要/Abstract

摘要：

化学驱是高盐油藏提高采收率的主要应用技术之一，但高矿化度对化学体系黏度的影响制约了流度控制作用的发挥，减弱了提高采出程度效果。利用纳米材料协同聚合物/表面活性剂提高高盐油藏采出程度，对比零维纳米颗粒F80和二维纳米薄片GO在高矿化度下对聚合物/表面活性剂二元复合体系黏度和界面张力的影响，通过微观剩余油变化分析纳米材料加入聚合物/表面活性剂前后化学体系驱油机理的差异，并通过岩心驱替实验分析其作用效果。研究表明，与二维纳米薄片GO相比，零维纳米颗粒F80可与地层水中的阳离子产生更强的离子偶极作用，化学体系黏度上升1.4倍，维持了更低的油水界面张力；在微观可视化驱替实验和岩心驱替实验中，聚合物/表面活性剂/F80三元复合体系因其高黏度可显著增大渗流阻力，减少分散剩余油；聚合物/表面活性剂/F80三元复合体系在水驱后提高采出程度20.1%，高于相同质量分数聚合物/表面活性剂二元复合体系5.4%。

关键词: 高盐油藏, 化学驱, 聚合物, 表面活性剂, 纳米材料, 微观剩余油, 模拟驱油, 提高采收率

Abstract:

Chemical flooding is a potential technique for enhancing oil recovery in high-salinity reservoirs. However, the high salinity impacts the viscosity of chemical system, thereby impeding the system’s effectiveness in mobility control and oil recovery improvement. This paper proposes the synergy of nanomaterials with polymer/surfactant for enhancing oil recovery in high-salinity reservoirs. The zero-dimensional nano-particle F80 and two-dimensional nano-sheet GO were compared for their effects on the viscosity and interfacial tension (IFT) of the polymer/surfactant composite system under high salinity conditions. The oil displacement mechanism of the polymer/surfactant composite system before and after the addition of nanomaterials was analyzed depending on the changes in microscopic residual oil and through core displacement experiments. It is found that F80 exhibits stronger ion-dipole interactions with cations in the formation water than GO, and it increases the viscosity of the chemical system by 1.4 times and maintains a lower oil-water IFT. In both microscopic visualization displacement and core displacement experiments, the polymer/surfactant/F80 composite system, with a high viscosity, significantly increases the flow resistance and reduces the dispersed residual oil, and enhances the oil recovery after water flooding by 20.1%, which is 5.4% higher than that of the polymer/surfactant composite system with the same mass fraction.

Key words: high-salinity reservoir, chemical flooding, polymer, surfactant, nanomaterial, microscopic residual oil, displacement experiment, EOR

中图分类号:

TE357

刘哲宇, 冯耀国, 王奎斌, 王文絮, 高文彬, 李宜强. 高盐油藏纳米材料协同聚合物/表面活性剂复合体系增效机制与驱油效果[J]. 新疆石油地质, 2026, 47(1): 57-63.

LIU Zheyu, FENG Yaoguo, WANG Kuibin, WANG Wenxu, GAO Wenbin, LI Yiqiang. Synergistic Mechanism and Displacement Efficiency of Nanomaterial-Assisted Polymer/Surfactant Flooding in High-Salinity Oil Reservoirs[J]. Xinjiang Petroleum Geology, 2026, 47(1): 57-63.

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高盐油藏纳米材料协同聚合物/表面活性剂复合体系增效机制与驱油效果

Synergistic Mechanism and Displacement Efficiency of Nanomaterial-Assisted Polymer/Surfactant Flooding in High-Salinity Oil Reservoirs

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