钻探工程2024，Vol.51Issue(4)：74-81,8.DOI:10.12143/j.ztgc.2024.04.010
耐240℃超高温高密度钻井液探索性实验研究
Exploratory research on high-density drilling fluids with 240℃ultra-high temperature resistance
摘要
Abstract
With the implementation of deep oil and gas exploration,high temperature hot dry rock exploration and deep earth exploration strategy,the drilling fluids have been in high temperature and high-pressure environment for a long time,and the stability of water-based drilling fluids under ultra-high temperature and high pressure is a key technology for ultra-high temperature well drilling.In this paper,the technical problems faced by drilling fluids in ultra-high temperature scientific drilling engineering are analyzed,and the design approach for high density water-based drilling fluids formula resistant to 240℃ultra-high temperature are proposed.The key additives for 240℃ultra-high temperature and high density water-based drilling fluids were selected by single factor method.Using the synergistic effect of different high temperature additives,a set of ultra-high temperature and high density water-based drilling fluid formula with temperature resistance of 240℃and density of 2.0g/cm3 was preliminarily developed.The results show that after aging at 240℃for 16h,the optimal formulation of drilling fluids have good rheology and filtration reduction performance.Its apparent viscosity change rate is less than 30%,and the filtration loss at 180℃is less than 24mL.关键词
耐240℃超高温高密度钻井液/有机/无机复合盐/高温流变稳定性/深部科学钻探工程Key words
high-density drilling fluids with 240℃ ultra-high temperature resistance/organic/inorganic composite salt/high temperature rheological stability/deep scientific drilling project分类
天文与地球科学引用本文复制引用
熊正强,邹志飞..耐240℃超高温高密度钻井液探索性实验研究[J].钻探工程,2024,51(4):74-81,8.基金项目
中国地质调查局地质调查项目(编号:DD20221722) （编号:DD20221722）
国家重大科学仪器设备开发专项"超高温高压钻井液流变仪的研发及产业化"(编号:2012YQ050242) （编号:2012YQ050242）
