金辉,蒋官澄,侯力嘉,曹金鑫,李宜强,刘哲宇
Jin Hui,Jiang Guancheng,Hou Lijia,Cao Jinxin,Li Yiqiang,Liu Zheyu

• 1:中国石油大学(北京)石油工程学院
• 2:中国石油大庆油田有限责任公司第七采油厂
• 3:中国石油辽河油田公司勘探开发研究院

摘要(Abstract)：

致密储层孔隙结构复杂，储层物性差，难以建立有效的驱替关系。化学剂在毛细管压力作用下进入孔喉，通过自发渗吸作用置换并采出原油，是致密储层提高采收率的重要机理。基于质量法和核磁共振技术，分析了阴离子、阴非离子和阳离子等常见表面活性剂的界面性质及其对渗吸效果的影响。结果表明：以降低界面张力为主的石油磺酸盐（PS）渗吸速率最快，但在渗吸后期会存在动力不足的问题；而以改变润湿性为主的十二醇聚氧乙烯醚硫酸钠（AES）则能在较长的时间内保持着稳定的渗吸速率，最终渗吸效率最高；结合渗吸效率曲线，揭示了渗吸过程存在毛细管启动、阻滞平衡和饱和平衡3个阶段。研究成果从渗吸主控驱动力及渗吸剂性质的角度揭示了不同类型表面活性剂渗吸效果的差异成因，并可为低渗致密油藏的渗吸开发提供介质选择的基础。
Complex pore structures and poor reservoir properties of tight reservoirs cause difficulty to establish effective displacement relationship. Chemical agents enter pore throats at capillary pressure and displace oil through spontaneous imbibition. This process is a key mechanism for enhancing oil recovery of tight reservoirs. Mass method and nuclear magnetic resonance(NMR) technique are used to analyze interfacial properties of common surfactants including anionic, anionic-nonionic and cationic types, and their effects on imbibition efficiency.The results show that petroleum sulfonate(PS), which mainly reduces the interacial tension, has maximum imbibition rate but lacks sufficient driving force in late stage of imbibition. In contrast, sodium fatty alcohol ether sulfate(AES), which mainly changes wettability, maintains long-term stable imbibition rate and ultimately achieves maximum imbibition efficiency. Imbibition efficiency curve shows 3 stages including capillary start-up, blocking equilibrium and saturation equilibrium.By examining primary driving forces of imbibition and surfactants characteristics, the research reveals differences in imbibition effects of different surfactants, providing theoretical basis for selecting agents for development of low-permeability tight oil reservoirs.

关键词(KeyWords)： 致密储层;渗吸;表面活性剂;界面性质
tight reservoir;imbibition;surfactant;interfacial properties

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“多模态碎屑岩人造岩心孔隙结构控制理论与应用研究”（52074318）

作者(Author): 金辉,蒋官澄,侯力嘉,曹金鑫,李宜强,刘哲宇
Jin Hui,Jiang Guancheng,Hou Lijia,Cao Jinxin,Li Yiqiang,Liu Zheyu

DOI: 10.19597/J.ISSN.1000-3754.202502042

参考文献(References)：

• [1]贾承造，庞雄奇，宋岩.全油气系统理论基本原理[J].石油勘探与开发，2024,51(4):679-691.Jia Chengzao,Pang Xiongqi,Song Yan. Basic principles of the whole petroleum system[J]. Petroleum Exploration and Development,2024,51(4):679-691.
• [2]王小军，白雪峰，李军辉，等.松辽盆地北部下白垩统扶余油层源下致密油富集模式及主控因素[J].石油勘探与开发，2024,51(2):248-259.Wang Xiaojun,Bai Xuefeng,Li Junhui,et al. Enrichment model and major controlling factors of below-source tight oil in Lower Cretaceous Fuyu reservoirs in northern Songliao Basin,NE China[J]. Petroleum Exploration and Development,2024,51(2):248-259.
• [3]贾承造.中国石油工业上游前景与未来理论技术五大挑战[J].石油学报，2024,45(1):1-14.Jia Chengzao. Prospects and five future theoretical and technical challenges of the upstream petroleum industry in China[J].Acta Petrolei Sinica,2024,45(1):1-14.
• [4]Syed F I,Dahaghi A K,Muther T. Laboratory to field scale assessment for EOR applicability in tight oil reservoirs[J]. Petroleum Science,2022,19(5):2131-2149.
• [5]Syed F I,Muther T,Van V P,et al. Numerical trend analysis for factors affecting EOR performance and CO2 storage in tight oil reservoirs[J]. Fuel,2022,316:123370.
• [6]林铁锋，康德江，姜丽娜.松辽盆地北部扶余油层致密油地质特征及勘探潜力[J].大庆石油地质与开发，2019,38(5):94-100.Lin Tiefeng,Kang Dejiang,Jiang Li’na. Geological characteristics and exploration potential of the tight oil in Fuyu oil reservoirs of North Songliao Basin[J]. Petroleum Geology&Oilfield Development in Daqing,2019,38(5):94-100.
• [7]付丽，梁江平，白雪峰，等.松辽盆地北部扶余油层致密油资源评价[J].大庆石油地质与开发，2016,35(4):168-174.Fu Li,Liang Jiangping,Bai Xuefeng,et al. Resources evaluations of the tight oil in Fuyu reservoirs of North Songliao Basin[J]. Petroleum Geology&Oilfield Development in Daqing,2016,35(4):168-174.
• [8]李晓骁，任晓娟，罗向荣.低渗透致密砂岩储层孔隙结构对渗吸特征的影响[J].油气地质与采收率，2018,25(4):115-120,126.Li Xiaoxiao,Ren Xiaojuan,Luo Xiangrong. Influence of pore structures on the characteristic of spontaneous imbibition in lowpermeability tight sandstone reservoir[J]. Petroleum Geology and Recovery Efficiency,2018,25(4):115-120,126.
• [9]李鸿儒，卢祥国，王晓燕，等.纳米驱油剂提高原油采收率效果及作用机理分析[J].油田化学，2023,40(2):305-311.Li Hongru,Lu Xiangguo,Wang Xiaoyan,et al. Effect and mechanism of nano oil displacement agent on enhancing oil recovery[J]. Oilfield Chemistry,2023,40(2):305-311.
• [10]郭玲玲，胡绍彬，钟会影.低渗透岩心驱油图像识别自动计量方法[J].计量学报，2025,46(6):868-875.Guo Lingling,Hu Shaobin,Zhong Huiying. Low-permeability core oil drive image recognition automatic metering method[J]. Acta Metrologica Sinica,2025,46(6):868-875.
• [11]姚立超，杨頔.罗27长4+5油藏低产井治理技术应用[J].辽宁化工，2020,49(1):113-115.Yao Lichao,Yang Di. Application of control technology in low production wells of Luo27 Chang4+5 reservoir[J]. Liaoning Chemical Industry,2020,49(1):113-115.
• [12]徐红艳.复杂断块油田新井效果影响因素分析[J].内蒙古石油化工，2023,49(7):96-99.Xu Hongyan. Analysis of factors affecting the effectiveness of new oil wells for complex fault block oilfields[J]. Inner Mongolia Petrochemical Industry,2023,49(7):96-99.
• [13]王会强，李明秋，曹正林，等.致密砂岩气藏多段压裂水平井试井曲线特征新认识[J].特种油气藏，2025,32(2):73-81.Wang Huiqiang,Li Mingqiu,Cao Zhenglin,et al. Characterization and recognition of well test curves of multi-stage fractured horizontal wells in tight sandstone gas reservoirs[J]. Special Oil&Gas Reservoirs,2025,32(2):73-81.
• [14]马立军，梁晓伟，贾剑波，等.陆相夹层型页岩油超长水平井开发技术[J].石油钻采工艺，2024,46(2):220-227.Ma Lijun,Liang Xiaowei,Jia Jianbo,et al. Ultra-long horizontal well development technology for continental interbedded shale oil[J]. Oil Drilling&Production Technology,2024,46(2):220-227.
• [15]王美楠，张俊廷，龙明，等.低渗透裂缝性油藏变形双重介质试井解释模型[J].中国石油和化工标准与质量，2018,38(17):127-129.Wang Meinan,Zhang Junting,Long Ming,et al. Dual medium well test interpretation model of deformation in low permeability fractured reservoir[J]. China Petroleum and Chemical Standard and Quality,2018,38(17):127-129.
• [16]马晓丽，商琳，孙彦春，等.潜山双重介质油藏剩余油赋存类型及治理对策[J].特种油气藏，2017,24(6):116-120.Ma Xiaoli,Shang Lin,Sun Yanchun,et al. The remaining oil distribution patterns and countermeasures in buried-hill dual-media oil reservoir[J]. Special Oil&Gas Reservoirs,2017,24(6):116-120.
• [17]肖立晓，侯吉瑞，闻宇晨，等.耐高温微乳液体系在特低渗-致密储集层中的渗吸机理[J].石油勘探与开发，2022,49(6):1206-1216.Xiao Lixiao,Hou Jirui,Wen Yuchen,et al. Imbibition mechanisms of high temperature resistant microemulsion system in ultralow permeability and tight reservoirs[J]. Petroleum Exploration and Development,2022,49(6):1206-1216.
• [18]王栋，展转盈，马彬.致密油储层注水吞吐动态渗吸特征及影响因素[J].西安石油大学学报（自然科学版），2021,36(2):50-56.Wang Dong,Zhan Zhuanying,Ma Bin. Dynamic imbibition char-acteristics and influencing factors of water injection huffpuff in tight oil reservoir[J]. Journal of Xi’an Shiyou University(Natural Science Edition),2021,36(2):50-56.
• [19]王秀宇，何爱国，巨明霜，等.基于微流控方法提高致密油渗吸采出程度[J].科学技术与工程，2021,21(15):6272-6277.Wang Xiuyu,He Aiguo,Ju Mingshuang,et al. Improving imbibition recovery efficiency in tight oil reservoir based on microfluidic method[J]. Science Technology and Engineering,2021,21(15):6272-6277.
• [20]Yan Xiang,Dai Caili,Wang Ruoyu,et al. Experimental study on countercurrent imbibition in tight oil reservoirs using nuclear magnetic resonance and AFM:influence of liquid-liquid/solid interface characteristics[J]. Fuel,2024,358:130026.
• [21]蒲春生，康少飞，蒲景阳，等.中国致密油藏水平井注水吞吐技术进展与发展趋势[J].石油学报，2023,44(1):188-206.Pu Chunsheng,Kang Shaofei,Pu Jingyang,et al. Progress and development trend of water huff-n-puff technology for horizontal wells in tight oil reservoirs in China[J]. Acta Petrolei Sinica,2023,44(1):188-206.
• [22]陈辉.特低渗透砂岩油藏自发渗吸-水驱原油动用规律研究[J].油气地质与采收率，2025,32(2):94-103.Chen Hui. Investigation on law of oil production by spontaneous imbibition and water flooding in ultra-low permeability sandstone reservoirs[J]. Petroleum Geology and Recovery Efficiency,2025,32(2):94-103.
• [23]Tian Weibing,Wu Keliu,Feng Dong,et al. Dynamic contact angle effect on water-oil imbibition in tight oil reservoirs[J]. Energy,2023,284:129209.
• [24]Wang Jing,Liu Huiqing,Qian Genbao,et al. Investigations on spontaneous imbibition and the influencing factors in tight oil reservoirs[J]. Fuel,2019,236:755-768.
• [25]田键，康毅力，游利军，等.致密砂岩孔隙尺度下气-水界面动态演化可视化实验研究[J].力学学报，2024,56(3):862-873.Tian Jian,Kang Yili,You Lijun,et al. Visualization study on the evolution of gas-water interface at pore-scale in tight sandstone rocks[J]. Chinese Journal of Theoretical and Applied Mechanics,2024,56(3):862-873.
• [26]Tu Jiawei,Sheng J J. Experimental and numerical study of surfactant solution spontaneous imbibition in shale oil reservoirs[J].Journal of the Taiwan Institute of Chemical Engineers,2020,106:169-182.
• [27]彭中樱，郭继香，张小军，等.页岩油渗吸机理及影响因素研究进展[J].应用化工，2024,53(3):661-666.Peng Zhongying,Guo Jixiang,Zhang Xiaojun,et al. Research progress on imbibition mechanism and influencing factors of shale oil[J]. Applied Chemical Industry,2024,53(3):661-666.
• [28]齐松超，于海洋，杨海烽，等.致密砂岩逆向渗吸作用距离实验研究[J].力学学报，2021,53(9):2603-2611.Qi Songchao,Yu Haiyang,Yang Haifeng,et al. Experimental research on quantification of countercurrent imbibition distance for tight sandstone[J]. Chinese Journal of Theoretical and Applied Mechanics,2021,53(9):2603-2611.
• [29]魏兵，李沁芷，刘成钢.自发渗吸时间标度归一化处理方法[J].西南石油大学学报（自然科学版），2022,44(5):61-73.Wei Bing,Li Qinzhi,Liu Chenggang. Methods of time scalingup for spontaneous imbibition[J]. Journal of Southwest Petroleum University(Science&Technology Edition),2022,44(5):61-73.
• [30]Liu Junrong,Sheng J J,Wang Xiukun,et al. Experimental study of wettability alteration and spontaneous imbibition in Chinese shale oil reservoirs using anionic and nonionic surfactants[J]. Journal of Petroleum Science and Engineering,2019,175:624-633.
• [31]Liu Junrong,Sheng J J. Experimental investigation of surfactant enhanced spontaneous imbibition in Chinese shale oil reservoirs using NMR tests[J]. Journal of Industrial and Engineering Chemistry,2019,72:414-422.
• [32]梁星原，韩国庆，周福建，等.致密油藏纳米乳液渗吸规律及应用[J].特种油气藏，2025,32(2):95-102.Liang Xingyuan,Han Guoqing,Zhou Fujian,et al. Pattern of nanoemulsion imbibition and its applications in tight oil reservoirs[J].Special Oil&Gas Reservoirs,2025,32(2):95-102.
• [33]袁帅，周福建，李源，等.致密砂岩油藏纳米乳液渗吸增产作用机理[J].油气地质与采收率，2024,31(1):126-136.Yuan Shuai,Zhou Fujian,Li Yuan,et al. Mechanism of imbibition and production enhancement of nanoemulsion in tight sandstone oil reservoirs[J]. Petroleum Geology and Recovery Efficiency,2024,31(1):126-136.
• [34]吴忠维，覃磊，崔传智，等.页岩油藏逆向渗吸的最大渗吸动用距离计算方法[J].特种油气藏，2024,31(4):103-108.Wu Zhongwei,Qin Lei,Cui Chuanzhi,et al. Calculation method of maximum imbibition distance of countercurrent imbibition in shale reservoirs[J]. Special Oil&Gas Reservoirs,2024,31(4):103-108.
• [35]Schechter D S,Zhou D,Orrjr FM. Capillary imbibition and gravity segregation in low IFT systems[C]. Dallas:SPE Annual Technical Conference and Exhibition,1991.
• [36]王永红，赵明伟，耿捷，等.渗吸置换提高原油采收率研究进展[J].石油与天然气化工，2024,53(3):64-72.Wang Yonghong,Zhao Mingwei,Geng Jie,et al. Research progress on enhancing oil recovery by imbibition[J].Chemical Engineering of Oil&Gas,2024,53(3):64-72.
• [37]赵雅洁，侯吉瑞，屈鸣，等.致密油藏纳米微乳液性能评价与驱油机理分析[J].油田化学，2022,39(2):338-342,354.Zhao Yajie,Hou Jirui,Qu Ming,et al. Performance evaluation and oil displacement mechanism analysis of nano-microemulsion using in tight oil reservoir[J]. Oilfield Chemistry,2022,39(2):338-342,354.