无接箍隔水导管接头结构设计及力学特性分析  

The Structure Design and Mechanics Analysis of Flush Marine Riser Joint

作　　者：李铁 顾岳[2] 杨进[2] 殷启帅 李振坤 庞达 王俊翔 杨育铭 LI Tie;GU Yue;YANG Jin;YIN Qishuai;LI Zhenkun;PANG Da;WANG Junxiang;YANG Yuming(Pengbo Operating Company,CNOOC China Limited,Tianjin 300452,China;China University of Petroleum（Beijing）,Beijing 102249,China)

机构地区：[1]中海石油(中国)有限公司蓬勃作业公司,天津300452 [2]中国石油大学(北京),北京102249

出　　处：《石油矿场机械》2018年第6期26-31,共6页Oil Field Equipment

基　　金：中国海洋石油总公司科技项目"无接箍隔水导管接头研究与应用"(CNOOC-KJ 125ZDXM 12LTD*03NFGD 2015)

摘　　要：无接箍隔水导管接头以其优良的工作性能被广泛应用。由于无接箍隔水导管接头螺纹啮合面的非线性,常用的二维接头模型不能满足其复杂的力学分析要求。根据在东海某扣型无接箍隔水导管接头的CAD设计模型,建立了考虑螺纹升角的不同径向尺寸、不同螺纹头数的三维有限元计算模型,分析了无接箍隔水导管接头的结构特点和应用前景。通过上扣转矩、弯矩、轴向拉力等载荷的施加与计算,得到与二维有限元模型不同的计算结果。无接箍隔水导管接头的应力分布不均匀,并且螺纹头数越多,应力极值越小;探讨了在不同载荷组合下,应力极值出现的位置。可为无接箍隔水导管接头的选择提供参考。The flush marine riser joint is applied to offshore drilling engineering widely based on its excellent performance. The two dimensional joint model hardly meets its complicated mechanical analysis requirements due to the nonlinearity of the thread engagement. The structure design lea tures and application prospects of flush marine riser joint were analyzed. The three dimensional finite element model with different size and screw number was established based on the CAD de sign drawing of a certain type of flush marine riser joint, which is widely being used in the East China Sea. Through the application and calculation of the torque, moment, axial tension, corn bined with the statistics and analysis of the results, the conclusion provides a reference for the se lecting of the flush marine riser joint in the deep water operation, improves the working efficien cy, the safety and security of offshore platform operation.

关 键 词：隔水导管 接头 结构设计 力学分析 

分 类 号：TE952[石油与天然气工程—石油机械设备]