摘要
钻井液是深层超深层钻完井工程的核心技术,是决定钻井成败的关键技术之一。本文分析了深井超深井钻井液面临的井壁失稳、高温高盐条件下体系失效、摩阻高和环保等难题,综述了国内外水基钻井液和油基钻井液最新技术进展,指出国内钻井液研究水平在抗温、抗盐方面与国外先进技术还存在差距,亟需在处理剂失效机理、抗超高温钻井液处理剂及针对特殊地层配套技术等方面进行攻关。
Drilling fluid is the core technology of deep and ultra-deep drilling and completion,and is one of the key technologies deter-mining the success of a drilling operation.In this paper,the difficulties facing drilling fluids of deep and ultra-deep wells were ana-lyzed,including wellbore instability,failure of drilling fluids at high-temperature and high-salinity conditions,high friction and envi-ronmental protection.Moreover,the latest technical progress of water-and oil-based drilling fluids in both China and other countries was reviewed.It was concluded that there are still large technical gaps in temperature and salinity resistance of drilling fluids between domestic drilling fluid systems and foreign advanced technologies,and therefore,it is urgent to strengthen research and development efforts in terms of failure mechanisms of drilling fluid agents,anti-ultra-high-temperature drilling fluid agents and supporting technol-ogies for special formations.
作者
刘锋报
孙金声
王建华
LIU Fengbao;SUN Jinsheng;WANG Jianhua(School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266555,Shandong,China;CNPC Re-search Institute of Engineering Technology Co.,Ltd.,Changping 102206,Beijing,China)
出处
《新疆石油天然气》
CAS
2023年第2期34-39,共6页
Xinjiang Oil & Gas
基金
国家自然科学基金基础科学中心项目“超深特深层油气钻采流动调控”(52288101)
山东省重点研发计划(院士团队支持项目)“绿色高效井筒工作液关键材料研发及产业化”(2020ZLYS07)。
关键词
深井超深井
钻井液技术
高温高压
deep and ultra-deep well
drilling fluid technology
high temperature and high pressure
