超高密度钻井液技术进展

摘要

超高密度钻井液是当今石油钻井行业的前沿技术之一,涉及到多方面的研究内容.从室内研究、现场应用两方面分析了超高密度(≥2.50g/cm3)钻井液研究中存在的技术问题,对钻井液使用的加重材料、降滤失剂、流动性改善剂等关键材料的研究进展进行了分析和论述,指出了超高密度钻井液配方优选时应注意的几个问题,介绍了超高密度钻井液流变学特征的研究概况,探讨了超高密度钻井液密度的技术途径,分析了特高密度钻井液技术的可行性.提出的各种方案和建议对室内研究和现场操作均有较好的借鉴意义.%Technology of ultra-high density drilljjjing fluid is one of the most advanced technologies nowadays that covers a lot of research aspects. In this paper, through experimental study and application, the technical problems of ultra-high density (3s 2.50 g/cm3) drilling fluid are summarized from weighting materials, filtration control agents, rheology modifier, and other critical materials, and formulation optimization of that is pointed out. More over the researches of rheology characteristic and extra-high density drilling fluid are introduced here.