压力容器2026，Vol.43Issue(5)：56-77,22.DOI:10.3969/j.issn.1001-4837.2026.05.007
石油钻井井控设备法兰金属垫环连接系统密封完整性研究综述
A review of seal integrity in flange metal ring-gasket connection systems for oil drilling well control equipment
摘要
Abstract
As oil and gas exploration and development activities extend to ultra-deep formations,well control risks rise correspondingly.Well control flanges work under long-term ultra-high pressure service conditions and are frequently subjected to pressure fluctuations,which easily trigger sealing leakage and jet leakage accidents.Therefore,ensuring the sealing integrity of flange connection systems is of great engineering significance.In this study,the failure causes of sealing integrity for well control flange connections are statistically analyzed based on literature review,field technical exchanges and on-site investigations.This paper systematically summarizes the relevant standards and basic theories of flange sealing connections,clarifies the application status and existing limitations of BX metal ring gaskets under high pressure and ultra-high pressure working conditions,and comprehensively reviews the domestic and international research progress on sealing failure mechanisms of bolted flange joints with metal ring gaskets from the perspectives of structural integrity and functional integrity of flange connection systems.Meanwhile,this paper discusses the innovative structural design of flange connections and the research development of novel gasket materials adapted to ultra-high pressure service conditions,and identifies the key unsolved bottlenecks in current sealing integrity research.The mainstream detection technologies for metal flange sealing connections are sorted out;besides,a comparative analysis is conducted on advanced international well integrity management systems.This paper further discusses the major difficulties in the full-cycle integrity management of metal flange sealing structures,and puts forward targeted optimization suggestions for sealing integrity management.The research aims to promote the intelligent development of drilling well control technology,and provide technical support for national energy security guarantee.关键词
钻井/井控设备/法兰/金属垫环/密封完整性Key words
drilling/well control equipment/flanges/metal ring-gasket/seal integrity分类
机械制造引用本文复制引用
夏天果,王刚,查磊,徐国何,樊建春,黄东阳..石油钻井井控设备法兰金属垫环连接系统密封完整性研究综述[J].压力容器,2026,43(5):56-77,22.基金项目
中国石油天然气股份有限公司塔里木油田分公司项目"万米深井井控设备、钻具安全可靠性评价与风险控制技术"(YF202301) （YF202301）
国家重点研发计划"陆上超深油气井井喷防控关键技术装备及示范应用"(2023YFC3009202) （2023YFC3009202）
