The Functional Mechanism of Drilling Tool Shoulder under Complex Load Conditions
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摘要: 为了解台肩对钻具接头螺纹牙承载的影响，基于φ139.7 mm贯眼扣钻具接头分别建立了无台肩、仅主台肩、仅副台肩和双台肩等4种结构钻具接头的有限元计算模型，分析比较了其在复杂载荷作用下的力学特性和抗扭性能。分析结果表明：主、副台肩对保证钻具接头连接稳定性有着至关重要的作用；预紧扭矩作用下主台肩的存在使钻具接头公扣产生拉伸的预紧效果，副台肩的存在使钻具接头公扣产生压缩的预紧效果，从而直接影响了钻具接头的承载特征和极限抗扭能力；在相同轴向拉力的条件下，仅副台肩钻具接头的极限抗扭能力比仅主台肩钻具接头高约12%，双台肩钻具接头的极限抗扭能力比仅主台肩钻具接头高约69%。研究结果为新型高性能钻具接头的研发及结构设计提供了理论依据。Abstract: To clarify the effects of the shoulder on the load bearing of connection threads, FEM models are built based on φ139.7 mm FH connection under four conditions, i.e. no shoulder, only primary shoulder, only secondary shoulder and double shoulders, respectively, and analyzed the mechanical properties under complex loads. Research results showed that the primary and secondary shoulders could play vital roles for ensuring the stability while making up connections; the primary shoulder can make the pin connection generating tensile effects under pre-tightening torsion, whereas the secondary shoulder can make the pin connection produce compressive pre-tightening effects, which, eventually, will affect the load bearing characteristics and ultimate torsion resistance. Under the same axial tension, the ultimate torsion resistance with only secondary shoulder is 12% higher than that when it has only primary shoulder, whereas the double-shoulder connection is 69% higher than when it has only a primary shoulder connection. Research results could provide references for development and the structure design of a new high-performance drilling tool connections.
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[1] 白鹤,何石磊,党涛,等.我国油套管特殊螺纹接头研究现状分析[J].焊管,2011,34(11):30-34.BAI He,HE Shilei,DANG Tao,et al.The analysis of research status on China domestic tubing and casing premium connection[J].Welded Pipe and Tube,2011,34(11):30-34. [2] 陈锋.复杂载荷条件下钻具接头三维应力特征分析[D].上海:上海大学,2014:42-56.CHEN Feng.Three-dimensional stress analysis of tool joints under complex load[D].Shanghai:Shanghai University,2014:42-56. [3] SANTUS C,BERTINI L,BEGHINI M,et al.Torsional strength comparison between two assembling techniques for aluminium drill pipe to steel tool joint connection[J].International Journal of Pressure Vessels and Piping,2009,86(2/3):177-186.
[4] XU Honglin,SHI Taihe,ZHANG Zhi,et al.Loading and contact stress analysis on the thread teeth in tubing and casing premium threaded connection[J].Mathematical Problems in Engineering,2014,Article ID 287076.
[5] 许志倩,闫相祯,杨秀娟.非API标准Big Omega特殊螺纹接头连接性能数值分析[J].石油矿场机械,2009,38(6):34-39.XU Zhiqian,YAN Xiangzhen,YANG Xiujuan.Numerical analysis on connection performance of non-API Big Omega premium-threaded connection[J].Oil Field Equipment,2009,38(6):34-39. [6] 祝效华,董亮亮,童华,等.拉弯复合载荷作用下的API短圆套管螺纹力学行为[J].石油学报,2013,34(1):157-163.ZHU Xiaohua,DONG Liangliang,TONG Hua,et al.Mechanical behaviors of short-round thread of the API casing under combined load of stretching and bending moment[J].Acta Petrolei Sinica,2013,34(1):157-163. [7] KANTARIYA S N.FEM analysis application to the strength prediction challenges and design optimization of the casing string threaded connections[D].Aberdeen:The Robert Gordon University,School of Engineering MSc Oil and Gas Engineering,2007.
[8] TAFRESHI A,DOVER W D.Stress analysis of drillstring threaded connections using the finite element method[J].International Journal of Fatigue,1995,15(5):429-438.
[9] 祝效华,高原,贾彦杰.弯矩载荷作用下偏梯形套管连接螺纹参量敏感性分析[J].工程力学,2012,29(10):301-307.ZHU Xiaohua,GAO Yuan,JIA Yanjie,The parameter sensitivity analysis of buttress casing connecting thread under action of bending loading[J].Engineering Mechanics,2012,29(10):301-307. [10] RHEE H C.Three-dimensional finite element analysis of threaded joint:the 9th International Conference on Offshore Mechanics and Arctic Engineering,Houston,February 18-23,1990[C].
[11] 刘巨保,丁宇奇,韩礼红.基于三维有限元模型的钻具连接螺纹上扣扭矩影响分析[J].石油矿场机械,2009,38(3):28-32.LIU Jubao,DING Yuqi,HAN Lihong.Impact analysis of make-up torque of drill connecting thread based on 3-D finite element model[J].Oil Field Equipment,2009,38(3):28-32. [12] 陈锋,狄勤丰,欧阳彦辉,等.双台肩钻杆接头副台肩间隙的优选[J].工程力学,2013,30(增刊1):353-357.CHEN Feng,DI Qinfeng,OUYANG Yanhui et al.The influence of clearance of secondary shoulder on performance of double shoulder drill pipe joint[J].Engineering Mechanics,2013,30(supplement 1):353-357. [13] SHAHANI A R,SHARIFI S.Contact stress analysis and calculation of stress concentration factors at the tool joint of a drill pipe[J].MaterialsDesign,2009,30(9):3615-3621.
[14] 陈锋,狄勤丰,王文昌,等.基于密封性能要求的超深井钻柱极限提升力的确定[J].石油学报,2013,34(6):1176-1180.CHEN Feng,DI Qinfeng,WANG Wenchang,et al.Determination of ultimate lifting capacity of drill string for ultra-deep wells based on sealing performance of tool joint[J].Acta Petrolei Sinica,2013,34(6):1176-1180. -
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