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| 1 | 2-D纳米黑卡油水界面微观驱油机理分子动力学模拟显示文摘新型纳米材料2-D纳米黑卡已被证实可有效提高低渗-致密油藏采收率,展现出优异的油水界面特性。但是2-D纳米黑卡与油水界面相互作用的微观机理仍不明确。应用Lammps建立2-D纳米黑卡油水界面模型,针对常温常压(298 K,1 atm)条件下2-D纳米黑卡在油水界面的特性进行分子动力学模拟,分析2-D纳米黑卡个数对不同分子在油水界面的密度分布、油水界面厚度、油水界面覆盖率、分子间相互作用能和界面张力变化率等5个关键参数的影响规律。模拟结果表明:当2-D纳米黑卡界面覆盖率近似为1时,界面处油水及纳米片分子密度分布基本达到稳定,2-D纳米黑卡界面密度峰值几乎不再增长,密度峰变宽;油水界面厚度为24.4Å,油水界面相互作用能为-4164 kcal/mol,界面张力比率为0.767,且这3个量达到相对稳定状态。本研究可对2-D纳米黑卡室内实验和矿场应用浓度优选提供理论依据和指导,为纳米片驱油机理的研究奠定理论基础。 | 冯阳 侯吉瑞 杨钰龙 王栋森 王立坤 程婷婷 刘彦伯 | 2022 | 油田化学2022，39，2： | 2 |
| 2 | Applications of nanoparticles in enhanced oil recovery显示文摘Nanoparticles serve variouspurposes in the hydrocarbon industry which are utilized to improve the volumeof oil and gas production.Nanomaterials are used in petroleum applications as nanoparticles,nanosensors,nanocomposites,coated nanoparticles,nanofluids etc.Thus,the application of nanotechnology in the enhanced oil recovery(EOR)method helps to extract the trapped oil present beneath the surface.Some nano ultra-fine particles are cost-effective and eco-friendly.The injected fluid interacts with the rock/oil systemto create a favourable environment for oil recovery.This study focuses on a review of the different types of nanoparticles and nanomaterials used in petroleum applications.This paper aims to study the classification and characterization of nanoparticles.This also includes the physiochemical and mechanical properties of nanomaterials.The study discusses the applications of nanoparticles in chemical,miscible,thermal and microbial floodings.It mainly focuses on various mechanisms involved by adding nanoparticles such as wettability alteration,IFT reduction,rheology improvement,mobility control etc.This research also addresses new green nanomaterials and nanocomposites,which includes injecting specialized green chemicals(surfactants,alcohols,and polymers)that successfully displace oil.The IFT between the displacing fluid and the oil is reduced due to phase-behaviour properties. | Anirbid Sircar Kamakshi Rayavarapu Namrata Bist Kriti Yadav Surbhi Singh | 2022 | Petroleum Research2022，7，1： | 0 |
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