【摘要】 近年来,纳米技术与钻井技术的结合,促进了石油钻探工业的发展.纳米SiO₂由于其环保、价廉、易改性等优点被广泛研究并应用于石油钻探工业.本文概述了纳米SiO₂在钻井液中应用研究进展,重点介绍了纳米SiO₂对钻井液流变性、降滤失性、页岩抑制、井筒稳定性、乳化性能、润滑性能的影响.有机/无机纳米SiO₂杂化材料通过在页岩表面形成一层致密的疏水膜、增加钻井液分子之间的交联程度等作用,有效地提高了钻井液的各项性能指标.更多还原

【Abstract】 In recent years, the combination of nanotechnology and drilling technology has promoted the development of the petroleum drilling industry. Nano-SiO₂ has been widely studied and applied in the petroleum drilling industry due to the advantages of environmental protection, low cost and easy modification. This paper outlined the research progress of nano-SiO₂ applied in drilling fluids. The effect of nano-SiO₂ on rheology, fluid loss, shale inhibition, wellbore stability, emulsifying properties and lubrication performance of the drilling fluid were mainly introduced. The organic-inorganic nano-SiO₂ hybrid material effectively improved the comprehensive performance of the drilling fluid by forming a dense hydrophobic membrane on the surface of the shale core and increasing the degree of cross-linking between the molecules in drilling fluids.更多还原