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首页> 外文期刊>Journal of natural gas science and engineering >Fe2O3 nanoparticles improve the physical properties of heavy-weight wellbore cements: A laboratory study
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Fe2O3 nanoparticles improve the physical properties of heavy-weight wellbore cements: A laboratory study

机译：实验室研究表明，Fe2O3纳米颗粒可改善重质井眼水泥的物理性能

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The application of nanomaterials to solve problems in wellbore cementing has been investigated in recent years by several research groups in the petroleum industry. This study includes the laboratory examination of the effect of Fe2O3 nanoparticles as a weighting agent on the physical properties of a heavy-weight wellbore cement. In the research process a candidate well is selected and the properties of the used cement slurry in a problematic section of the well are tested in the laboratory. Then Fe2O3 nanoparticles are added as a weighting agent to partially replace the Hidense and the improvements in the cement slurry and stone properties are studied. This article discusses the problems associated with the conventional heavy-weight wellbore cement used in the candidate well and gives the detail of the improvements in cement properties obtained by adding Fe2O3 nanoparticles to cement slurry formulation as a weighting agent. These properties include cement slurry rheological properties, free water, fluid loss, thickening time, cement stone elastic properties and compressive strength. The nano additive increases the yield point and plastic viscosity and decreases the free water and fluid loss of a cement slurry. In addition, cement stone compressive strength increases, however, there is an optimum concentration of nano additive at which the maximum compressive strength is reached. Moreover, elastic properties of the cement stone are improved and higher values for the Young's modulus and Poisson's ratio are achieved. The results of this study can be used to optimize the cement slurry design in any given set of conditions. The modified cement using this approach, is applicable in high pressure fluid bearing zones. (C) 2015 Elsevier B.V. All rights reserved.
机译：近年来，石油行业的一些研究小组已经研究了纳米材料在解决井眼固井问题中的应用。这项研究包括实验室检查Fe2O3纳米颗粒作为增重剂对重质井眼水泥的物理性能的影响。在研究过程中，选择了候选井，并在实验室中测试了井中有问题的部分中用过的水泥浆的性能。然后加入Fe2O3纳米颗粒作为增重剂以部分替代Hidense，并研究了水泥浆和石材性能的改善。本文讨论了与候选井中使用的传统重井眼水泥有关的问题，并详细介绍了通过将Fe2O3纳米颗粒添加到水泥浆配方中作为增重剂而获得的水泥性能的改善。这些性质包括水泥浆的流变性质，游离水，流体损失，增稠时间，水泥石的弹性性质和抗压强度。纳米添加剂增加了屈服点和塑性粘度，并减少了水泥浆的自由水和流体损失。另外，水泥石的抗压强度增加，但是，存在达到最大抗压强度的纳米添加剂的最佳浓度。此外，改善了水泥石的弹性，并获得了较高的杨氏模量和泊松比值。这项研究的结果可用于在任何给定条件下优化水泥浆设计。使用这种方法的改性水泥适用于高压流体轴承区域。 （C）2015 Elsevier B.V.保留所有权利。

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