雷齐松，张映辉，贺彦亮，王建华，胡月霞，郑　欣

(渤海钻探钻井技术服务公司，天津300280)

套管扶正机械手研制

雷齐松，张映辉，贺彦亮，王建华，胡月霞，郑欣

(渤海钻探钻井技术服务公司，天津300280)

摘要：为提高下套管作业效率，减少套管上错扣现象，减轻施工人员的劳动强度和杜绝井下复杂情况发生，设计完成套管扶正机械手的技术方案并进行了论证。该套管扶正机械手主要由执行系统和控制系统两部分组成。控制系统是利用防爆电磁换向阀控制各油缸油路方向，各油缸分别控制底盘旋转带动机械手臂摆动；控制机械手臂抬起、伸缩和放置水平位置；控制机械抓手抱紧和松开套管，对套管扶正从而实现套管顺利上扣。根据套管扶正机械手的工作特点、实际工况参数，对其进行了应力分析，结果表明提升油缸活塞杆前端销轴连接处和装置底座承受着较大的应力载荷，实际应用时必须保证其有足够的强度。详细介绍了该套装置的操作要点和注意事项，对现场应用具有指导意义。

关键词：套管；控制油缸；底盘；机械抓手

Development of Casing Centralizer Manipulator

Lei Qisong, Zhang Yinghui, He Yanliang, Wang Jianhua, Hu Yuexia, Zheng Xin

(BohaiDrillingTechnologyServiceCompany,Tianjin300280，China)

Abstract:We completed technical schemes for casing centralizer manipulator to improve the efficiency of casing running operation, reduce wrong buckling of casing running operation, reduce the labor intensity of workers and prevent the occurrence of down-hole complicated conditions. The manipulator is mainly composed of two parts: the implementing system and the controlling system. With the explosion-proof magnetic exchange valve, the controlling system is to control the oil direction of cylinders that control chassis rotation to drive manipulator, to control lift, stretching and position horizontally, to control manipulator to hug and loose the casing and centralize casing to fulfill buckling of casing. We conducted stress analysis on the manipulator according to its work characteristics, actual work parameters and operating conditions. Results showed that lifting up the oil cylinder piston rod front-end pin shaft joint and the base sustained greater stress load, so we had to ensure that they had sufficient strength. We introduced the operational keys and cautions for use of the facility, which could be of guiding significance to field application.

Key words:casing;control of oil cylinder; chassis; manipulator

目前在下套管施工作业及套管钻井和大尺寸套管下入的施工中，套管对扣很大程度上依赖偶然因素。例如套管出现倾斜时需要司钻摆动吊卡给套管一个外力，同时要求下套管施工人员能将套管对正扣，否则套管扣很难对正，而且在使用上卡盘时，如果套管的位置未与平台垂直则很难进入卡盘[1]。若遇大风天气，则下套管难以进行。……