分流封隔器皮碗的性能分析及参数优化  

Performance Analysis and Parameter Optimization of Splitter Packer Cup

作　　者：易先中[1] 邢洪宪 张华 万继方 王利军 贺育贤 葛先驰 范晓梅 YI Xianzhong;XING Hongxian;ZHANG Hua;WAN Jifang;WANG Lijun;HE Yuxian;GE Xianchi;FAN Xiaomei(School of Mechanical Engineering,Yangtze University,Jingzhou Hubei 434023,China;Engineering Technology Branch of CNOOC Energy Development Co.,Ltd.,Tianjin 300452,China;International Engineering Branch of Bohai Drilling Engineering Co.,Ltd.,Tianjin 300457,China;CNPC Engineering Technology Research Institute Co.,Ltd.Institute of Unconventional Oil and Gas Engineering,Beijing 102206,China;Sichuan Datan Energy Technology Co.,Ltd.,Chengdu Sichuan 637001,China)

机构地区：[1]长江大学机械工程学院,湖北荆州434023 [2]中海油能源发展股份有限公司工程技术分公司,天津300452 [3]渤海钻探工程有限公司国际工程分公司,天津300457 [4]中国石油集团工程技术研究院有限公司非常规油气工程研究所,北京102206 [5]四川达坦能源科技有限公司,四川成都637001

出　　处：《润滑与密封》2023年第8期127-135,共9页Lubrication Engineering

基　　金：国家自然科学基金项目(51974035,U1262108,U1762214);湖北省重点研发计划项目(2020BAB055);长江大学·非常规油气省部共建协同创新中心开放基金项目(UOG2022-26,UOGBX2022-04,UOGBX2022-05)。

摘　　要：分流封隔器是刮管冲砂技术中最重要的工具,直接影响到冲砂洗井的效率。针对分流封隔器皮碗极易出现撕裂和磨损问题,开展皮碗力学特性研究。采用有限元法与试验相结合的方法,研究推筒外径和底径、皮碗水平距离和内外径对分流封隔器密封性能的影响,优化皮碗总成结构参数。结果表明:影响皮碗密封的主要因素依次是皮碗的外径、内径、水平距离、推筒的底径和外径;最优结构参数组合是推筒外径192 mm、底径188 mm、皮碗内径185 mm、外径216 mm、水平距离46 mm。优化后试验表明,皮碗满足外径244.5 mm套管使用要求,以及皮碗静密封承压20 MPa和动密封承压10 MPa的技术要求,整体性能得到提升,验证了有限元仿真分析的准确性。研究结果可为分流封隔器整体性能改进和应用提供参考。The splitter packer is the most important tool in the sand scraping and flushing technology,which directly affects the efficiency of sand flushing and well washing.In view of the problem that the cups of the splitter packer is prone to tearing and wear,the study on the mechanical characteristics of the cups was carried out.Using a combination of finite element method and experiments,the effects of the outer and bottom diameters of the push cylinder,the horizontal distance and inner and outer diameters of the cup on the sealing performance of the splitter packer were studied,and the structural parameters of the cup assembly were optimized.The results show that the main factors affecting the cup seal are the outer diameter,inner diameter,horizontal distance of the cup,bottom diameter and outer diameter of the push cylinder in order.The optimal structural parameters are 192 mm outer diameter of the push cylinder,188 mm bottom diameter,185 mm inner diameter of the cup,216 mm outer diameter and 46 mm horizontal distance.The test results show that the optimized cup meets the using requirements of 244.5 mm casing,and the static seal pressure of 20 MPa and dynamic seal pressure of 10 MPa.The overall performance is improved and the accuracy of finite element simulation analysis is verified.The results of the study can provide reference for the overall performance improvement and application of the splitter packer.

关 键 词：封隔器皮碗 力学特性 性能优化 分流封隔器 刮管冲砂技术 

分 类 号：TE931[石油与天然气工程—石油机械设备] TB42[一般工业技术]