纳米颗粒对水基钻井液流变性能的影响。
Effect of Nanoparticles on Rheological Properties of Water-Based Drilling Fluid.
作者信息
Lin Yuan, Tian Qizhong, Lin Peiwen, Tan Xinghui, Qin Huaitao, Chen Jiawang
机构信息
Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China.
Hainan Institute, Zhejiang University, Sanya 572025, China.
出版信息
Nanomaterials (Basel). 2023 Jul 18;13(14):2092. doi: 10.3390/nano13142092.
Nano-water-based drilling fluids (NWBDFs) are prepared using nano-copper oxide (CuO) and multiwalled carbon nanotubes (MWCNTs) as modification materials. The effects of the temperature and concentration of the nanoparticles (NPs) on the rheological properties are studied using a rotational rheometer and viscometer. Also, the influence of two NPs on the filtration properties is studied using a low-pressure and low-temperature filtration apparatus, as well as a scanning electron microscope (SEM). It is found that MWCNTs with a concentration of 0.05 w/v% have the most obvious influence on the NWBDFs, which improve the stability of the gel structure against temperature and also decrease the filtration rate. Finally, a theoretical model predicating the yield point (YP) and the plastic viscosity (PV) as a function of the temperature considering the influence of the NPs is developed based on DLVO theory.
纳米水基钻井液（NWBDFs）是使用纳米氧化铜（CuO）和多壁碳纳米管（MWCNTs）作为改性材料制备的。使用旋转流变仪和粘度计研究了纳米颗粒（NPs）的温度和浓度对流变性能的影响。此外，使用低压低温过滤装置以及扫描电子显微镜（SEM）研究了两种NPs对过滤性能的影响。结果发现，浓度为0.05 w/v%的MWCNTs对NWBDFs的影响最为明显，它提高了凝胶结构对温度的稳定性，同时也降低了过滤速率。最后，基于DLVO理论建立了一个预测屈服点（YP）和塑性粘度（PV）随温度变化的理论模型，该模型考虑了NPs的影响。
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