摘要
以氨基化氧化石墨烯(sj-s)、乙二醛、对氨基苯磺酸钠为原料,通过共价键功能改性合成了一种耐高温抗盐氨基化氧化石墨烯纳米渗吸剂(sj-1),采用FTIR,Raman,TEM,粒径与Zeta电位分析等方法对sj-1进行表征,考察了sj-1的耐温性、抗盐性能、油水界面张力、稳定性及渗吸剂提高采收率的能力。实验结果表明,sj-s上成功接枝了对氨基苯磺酸钠,sj-1在水中具有良好的自分散性,在130℃和16×10^(4)mg/L矿化度环境中具有良好的稳定性,在岩心渗透率为3.814×10^(-4)μm^(2)时,渗吸采收率最高可达37.9%,自发渗吸采收率效果优于sj-s。
A kind of high-temperature and salt-resistant amino-functionalized graphene oxide nanoadsorbent(sj-1)was synthesized through covalent functional modification with amino-functionalized graphene oxide(sj-s),glutaraldehyde,and sodium 4-aminobenzenesulfonate as raw materials.The adsorbent was characterized by methods such as FTIR,Raman,TEM,and particle size and Zeta potential analysis.The temperature resistance,salt resistance,oil-water interfacial tension,stability,and the capacity of sj-1 to enhance oil recovery were investigated.The experimental results indicate that the 4-aminobenzenesulfonate groups were successfully grafted onto sj-s.sj-1 has good self-dispersibility in water and good stability at a temperature of 130℃ and a salinity of 16×10^(4)mg/L.When the core permeability is 3.814×10^(-4)μm^(2),the oil absorption recovery effect could reach 37.9%.The spontaneous oil absorption recovery effect of sj-1 is superior to that of sj-s.
作者
石芳
金韦彬
吴景春
柏明星
张春龙
王浩然
Shi Fang;Jin Weibin;Wu Jingchun;Bai Mingxing;Zhang Chunlong;Wang Haoran(School of Petroleum Engineering,Key Laboratory for EOR Technology(Ministry of Education),Northeast Petroleum University,Daqing 163318,China;Daqing Yongzhu Petroleum Technology Development Co.,Ltd.,Daqing 166500,China;College of Earth Sciences,Northeast Petroleum University,Daqing 163318,China)
出处
《石油化工》
北大核心
2025年第4期502-508,共7页
Petrochemical Technology
基金
国家自然科学基金青年基金项目(52304026)
国家自然科学基金项目(52474035)
黑龙江省自然科学基金资助项目(LH2022D011)。
关键词
页岩油藏
耐高温
抗盐
稳定性
氧化石墨烯
纳米材料
shale reservoir
high-temperature resistant
salt-resistant
stability
graphene oxide
nanomaterial
