摘要
国外一直将使用油基钻井液当作钻深井、超深井、大斜度定向井、水平井和水敏性复杂地层的重要手段,同时也是保护油气层的一个重要手段。国内油包水钻井液的应用规模十分有限,这除了与成本因素有关外,更多是受到油包水钻井液乳化剂研制的制约。乳化剂是油包水油基钻井液体系中最为关键的处理剂。因此,乳化剂的研究决定着油基钻井液技术发展,在国外经验和国内初步实践的基础上,应着重研发适合国内使用的抗高温乳化剂、适用于高密度体系的乳化剂等,以促进国内钻井液技术水平的不断进步。
Oil-based drilling fluid universal used in drilling deep well、ultra deep well、high deviated directional well、horizontal well and water sensitivity complex formation,Also an important means to reservoir protection.The scale use of Oil-based drilling fluid in domestic is very limited,in addition to cost factor,the core factor is the restriction of the emulsifier development.Emulsifier is the kernel additives in the Oil-based drilling fluid system.Research on emulsifier determines the development of Oil-based drilling fluid technology.Based on the foreign experience and domestic initial practice,to promote the continuous progress of domestic Oil-based drilling fluid technology through the development of anti-high temperature emulsifier,apply to high density system emulsifier.
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