CAJ | 학술논문

膨胀尾管悬挂器在注水泥和顶替的过程中能够带动管串旋转，可显著提高环空顶替效率和固井质量。从膨胀驱动机构、本体机构、丢手机构、旋转机构、指示机构和应急机构等6个方面对膨胀尾管悬挂器关键技术进行了分析，并介绍了其现场应用情况。分析结果表明，膨胀尾管悬挂器集成了悬挂和封隔功能，并能实现大排量循环，遇阻后通过旋转和上提下放，使管串顺利入井，并提高固井质量；通过完善现场施工工艺，优化胶塞憋压操作及其机构，确保丢手机构及应急机构的正常工作，可有效提高膨胀悬挂器作业的可靠性。建议我国加大膨胀尾管悬挂器的研发力度，同时提高工具的可靠性。
팽창미관현괘기재주수니화정체적과정중능구대동관천선전，가현저제고배공정체효솔화고정질량。종팽창구동궤구、본체궤구、주수궤구、선전궤구、지시궤구화응급궤구등6개방면대팽창미관현괘기관건기술진행료분석，병개소료기현장응용정황。분석결과표명，팽창미관현괘기집성료현괘화봉격공능，병능실현대배량순배，우조후통과선전화상제하방，사관천순리입정，병제고고정질량；통과완선현장시공공예，우화효새별압조작급기궤구，학보주수궤구급응급궤구적정상공작，가유효제고팽창현괘기작업적가고성。건의아국가대팽창미관현괘기적연발력도，동시제고공구적가고성。
Expanded liner hanger could rotate the liner string during cementing and cement displacement, which could significantly improve displacement efficiency and cementing quality?Key techniques of expandable liner hanger are analyzed in terms of the expansion driving mechanism, body mechanism, release mechanism, rotating mechanism, indicating mechanism and emergency release mechanism?Field applications are presented?The study shows that the expandable liner hanger, integrated with the function of hanging and isolating, can allow for large displacement circulating, achieve better liner run?in?hole performance by rotating or tripping liner string, and im?prove the cementing quality?The function of releasing mechanism and emergency mechanism is ensured by impro?ving on?site operation technology, optimizing rubber plug pressure?building process and mechanism, thus resulting in improved reliability of expandable liner hanger?Enhancing research on expandable liner hanger is proposed to im?prove the reliability of the tool.