Inhibiting Asphaltene Deposition Using Polymer-Functionalized Nanoparticles in Microfluidic Porous Media
Inhibiting Asphaltene Deposition Using Polymer-Functionalized Nanoparticles in Microfluidic Porous Media
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DOI：
10.1021/acs.energyfuels.3c03060
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发表时间：
2023-12-01
期刊：
影响因子：
5.3
通讯作者：
Biswal，Sibani Lisa
中科院分区：
文献类型：
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作者：
Nguyen，Thao Vy;Zhang，Zhuqing;Biswal，Sibani Lisa
沥青质是原油中最重和最易极化的馏分。在石油生产过程中，温度、压力和石油组成的变化会使沥青质不稳定。这种不稳定导致沥青质聚集和沉积，这可能在井筒和近井筒区域以及生产设施中引起主要堵塞问题。在这项研究中，我们开发并研究了丙烯酸和2-丙烯酰胺基-2-甲基丙磺酸（AA-AMPS）功能化的磁性纳米粒子作为表面涂层在抑制沥青质沉积的应用。多孔介质微流体平台的使用允许有效评估纳米颗粒涂层在减轻各种原油中沥青质沉积方面的有效性。我们证明了纳米颗粒涂层在抑制沥青质沉积方面是有效的，在渗透率变化方面显示出高达75%的改善。研究还探讨了不同原油中沥青质聚集和沉积的动力学。我们确定的因素，如沥青质聚集体的大小以及聚集体的物理和化学特性，可以确定不同的缓解方法的有效性。
Asphaltenes are the heaviest and most polarizable fractions of crude oil. During the oil production process, changes in the temperature, pressure, and oil composition can destabilize asphaltenes. This destabilization leads to asphaltene aggregation and deposition, which can cause major clogging problems in both the wellbore and near-wellbore regions as well as the production facilities. In this study, we developed and investigated the application of acrylic acid and 2-acrylanmido-2-methylpropanesulfonic acid (AA–AMPS)-functionalized magnetic nanoparticles as a surface coating in inhibiting asphaltene deposition. The use of the porous media microfluidic platform allows for efficient evaluation of the effectiveness of the nanoparticle coating in mitigating asphaltene deposition in various crude oils. We demonstrated that the nanoparticle coating is effective in inhibiting asphaltene deposition, showing up to a 75% improvement in permeability change. The study also explores the dynamics of asphaltene aggregation and deposition in different crude oils. We identified factors such as asphaltene aggregate size as well as the physical and chemical characteristics of the aggregates that can determine the effectiveness of different mitigation methods.