纳米技术在钻井液中的应用进展

纳米材料添加剂是当前钻井液领域的研究热点之一。在钻井液中添加纳米材料可以实现控制流变性、提高抗温性能、降低滤失量、提高润滑性等效果。通过分析纳米SiO2、纳米CaCO3、C 纳米材料、纳米乳液等纳米材料的物质结构、物理性质和化学性质，简述了它们在钻井液中的作用机理、使用效果、现场实例及应用现状。提出了根据材料独特理化性质针对性使用、构建数学模型预测纳米添加剂效果以及通过复配降低纳米添加剂成本等建议。

Application of nano technology to drilling fluid

Nano-additive is a hot research object in the field of drilling fluids now. When nano-materials are added into drilling fluids,they can control the rheological property, decrease filtration rate, and improve temperature resistance and lubricity of drilling fluids.This paper analyzed nano-materials (e.g. nano SiO2, nano CaCO3, C nano-material and nano-emulsion) in terms of material structure,physical property and chemical property. Then it introduced the working principles and field applications of nano-materials in drilling fluids. Finally, it proposed to build up a mathematical model based on the unique physical and chemical properties of nano-materials to predict the application results of nano-additives and to reduce the cost of nano-additives by means of combination.