Improvement of rheological, filtration and thermal conductivity of bentonite drilling fluid using copper oxide/polyacrylamide nanocomposite
Improvement of rheological, filtration and thermal conductivity of bentonite drilling fluid using copper oxide/polyacrylamide nanocomposite
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DOI：
10.1016/j.powtec.2019.05.038
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发表时间：
2019-07-15
影响因子：
5.2
通讯作者：
Kalantariasl, Azim
中科院分区：
文献类型：
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作者：
Saboori, Rahmatallah;Sabbaghi, Samad;Kalantariasl, Azim
钻井液在油气威尔斯井的钻井作业中起着非常重要的作用。近年来，纳米颗粒在钻井液中的应用研究受到了人们的关注。在这项研究中，我们报告了氧化铜/聚丙烯酰胺纳米复合材料作为水基钻井液处理剂的应用实验结果。采用溶液聚合法合成了纳米复合材料，并用傅里叶变换红外光谱、场发射扫描电子显微镜和动态光散射对其进行了表征。将合成的纳米复合材料加入到不同浓度的水基钻井液中，采用标准方法分别对去离子水和盐水的流变性、滤失性和导热性进行了监测。提出了一种合成纳米复合材料并将其应用于钻井液的综合方法。结果表明，钻井液粘度有很大改善。滤失量和滤饼厚度显著降低。使用纳米复合添加剂获得更光滑和更少孔隙的滤饼。热导率大幅增加。纳米复合添加剂在去离子水基钻井液中对滤失性和流变性的改善效果更好，而在盐水中的导热系数比去离子基钻井液有更大的提高。(C)2019爱思唯尔B. V.保留所有权利。
Drilling fluid plays many important roles in drilling operations of oil and gas wells. Research on application of nanoparticles in drilling fluid to combat several challenges has gained attention in recent years. In this study, we report experimental results of applications of copper oxide/polyacrylamide nanocomposite as water-based drilling fluid additive. Nanocomposite was synthesized with solution polymerization process and characterized with fourier-transform infrared spectroscopy, field emission scanning electron microscopy, and dynamic light scattering. The synthesized nanocomposite was added into water-based drilling fluid with different concentration and improvement of rheological, filtration and thermal conductivity were monitored through standard methods for both deionized water and salty water. A comprehensive procedure is proposed for synthesis and application of nanocomposite in drilling fluid. The results showed highly improvement in drilling fluid viscosity. Fluid filtration (fluid loss) volume and filter cake thickness were reduced significantly. Smoother and less porous filter cake obtained with nanocomposite additive. Thermal conductivity was increased substantially. Nanocomposite additive was more effective in deionized water-based drilling fluid for filtration and rheological properties while in salty water thermal conductivity was improved more than that for deionized base drilling fluid. (C) 2019 Elsevier B.V. All rights reserved.