套管在对称载荷下其螺纹牙应力分布计算公式

doi:10.16182/j.issn1004731x.joss.201810050

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (10): 4014-4020.doi: 10.16182/j.issn1004731x.joss.201810050

套管在对称载荷下其螺纹牙应力分布计算公式

童华¹, 唐晓鸿¹, 祝效华¹, 何欢², 陶浩然³

1.西南石油大学机电工程学院,成都 610500;
2. 中石化西南油气分公司川东北采气场,南充 637400;
3. 中国石油西南油气田物资分公司,成都 610500

收稿日期:2016-03-18 修回日期:2016-05-19 出版日期:2018-10-10 发布日期:2019-01-04
作者简介:童华(1979-), 女, 四川, 博士, 副研究员,研究方向为管柱力学、井下工具设计及安全评价等。
基金资助:
国家自然科学基金(51674214, 51004082),四川省青年科技创新团队项目(2017TD0014)

Stress Distribution Formula of Threads Casing Joint Under Symmetrical Load

Tong Hua¹, Tang Xiaohong¹, Zhu Xiaohua¹, He Huan², Tao Haoran³

1. Mechanical and Electrical Engineering of Southwest Petroleum University, Chengdu 610500, China;
2. Sinopec Southwest Branch,Nanchong 637400, China; Material Supply Branch of PetroChina Southwest Oil & Gasfield Company, Chengdu 610051, China;

Received:2016-03-18 Revised:2016-05-19 Online:2018-10-10 Published:2019-01-04

摘要/Abstract

摘要： 不通过有限元方法进行数值计算,要现场测出井下套管接头螺纹牙的载荷分布情况是很难实现的。这里假定一个变形协调因子U_x,借助一个初始计算值f₀来表示螺纹牙应力：f(x)=f₀U_x;并采用有限元软件计算出不同对称载荷下的螺纹牙载荷分布规律;通过曲线拟合得到U_x表达式,求得螺纹牙的应力计算公式。为现场提供了一种直观、快捷、准确的计算方法,也为套管接头的研发、制造提供理论参考依据。研究结果表明：套管螺纹牙U_x在单一对称载荷作用下不随载荷大小改变而改变;在复合对称载荷作用下,U_x有少量波动。

关键词: 套管接头, 对称载荷, 螺纹牙应力, 变形协调因子, 有限元, 计算公式

Abstract: While itis difficult tomeasure thestress distribution of casing threads underground without calculation by finite element method. Here assumes a deformation compatibility factor U_x, use an initial calculation to represent the thread stress, f(x)=f₀U_x, and applythe ABAQUS finite element software to calculate the stress distribution of the threads under different symmetrical loads. Obtain the expressions of U_x by curve fitting, and get the threads stress calculation formula to provide an intuitive, fast and accurate method of calculation for the site. Providea theoretical reference for development and manufacture of casing joint. The research indicates: the deformation compatibility factor of casing threads don’t change with the size of the load under a singlesymmetrical load, but it has a small amount of volatility under the complex symmetrical load.

Key words: casing joint, symmetrical load, threads stress, deformation compatibility factor, finite element, calculation formula

中图分类号:

TP391.9

童华, 唐晓鸿, 祝效华, 何欢, 陶浩然. 套管在对称载荷下其螺纹牙应力分布计算公式[J]. 系统仿真学报, 2018, 30(10): 4014-4020.

Tong Hua, Tang Xiaohong, Zhu Xiaohua, He Huan, Tao Haoran. Stress Distribution Formula of Threads Casing Joint Under Symmetrical Load[J]. Journal of System Simulation, 2018, 30(10): 4014-4020.

参考文献

[1] 王新虎, 冯耀荣, 李鹤林. 钻具螺纹接头螺纹牙载荷计算方法的探讨[J]. 石油机械, 1998, 26(8): 49-52.
Wang Xinhu, Feng Yaorong, Li Helin.Study on the load calculation method of threaded joint of drill tools[J]. Petroleum Machinery, 1998, 26(8): 49-52.
[2] 韩传军, 邱亚玲, 刘清友, 等. 管柱螺纹连接计算中的圣维南效应分析[J]. 石油机械, 2009, 37(6): 5-7, 38.
Han Chuanjun, Qiu Yaling, Liu Qingyou, et al.String thread connection analysis in the calculation of Saint Venant effect[J]. Petroleum Machinery, 2009, 37(6): 5-7, 38.
[3] 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 Shi Lei, Dang Tao, et al.Analysis of the current research status of special threaded joints of oil and casing in China[J]. Welded Pipe, 2011, 34(11): 30-34.
[4] 卫栋, 易晓明, 丰振军. 非API螺纹特点及检测相关性探讨[J]. 石油矿场机械, 2012, 41(3): 13-18.
Wei Dong, Yi Xiaoming, Feng Zhenjun.Discussion on the characteristics of Non- API thread and relationship between the correlation detection[J]. Oil Field Equipment, 2012, 41(3): 13-18.
[5] Craig B D, Thodla R, Piza Paes M T, et al. Failure Investigation of a High Strength Low Alloy Steel Threaded Connection in a High CO2 Oil and Gas Field[C]// OTC Brasil, Offshore Technology Conference, 2015.
[6] Ong G, Ramli M N, Ahmad H, et al.Evaluation of Fatigue Performance on Semi Premium Connection for Casing Drilling Application to Prevent Connection Fatigue Failure[C]// Offshore Technology Conference Asia, Offshore Technology Conference, 2016.
[7] 陈颖杰, 邓传光, 徐婧源, 等. Ф244. 5 mm套管长圆螺纹接头有限元分析[J]. 石油天然气学报, 2014, 36(12): 257-261.
Chen Yingjie, Deng Chuanguang, Xu Jingyuan, et al.Finite element analysis of round thread casing joint with 244. 5mm[J]. Journal of Petroleum and Natural Gas, 2014, 36(12): 257-261.
[8] 艾自胜, 张长青, 单连成, 等. Excel在曲线拟合中的应用[J]. 苏州大学学报, 2008, 28(5): 759-762.
Ai Zisheng, Zhang Changqing, San Liancheng etc. Application of Excel in curve fitting[J]. Journal of Soochow University, 2008, 28(5): 759-762.
[9] 张世强. 曲线回归的拟合优度指标的探讨[J]. 中国卫生统计, 2002, 19(1): 9-11.
Zhang Shiqiang.Study on the goodness of fit index of curve regression[J]. Chinese Health Statistics, 2002, 19(1): 9-11.
[10] 闫铁, 范森, 石德勤. 钻铤螺纹联接处载荷分布规律研究[J]. 石油学报, 1996, 17(3): 116-122.
(Yan Tie, Fan Sen, Shi Deqin.Study on load distribution law of drill collar thread connection[J]. Journal of Petroleum, 1996, 17(3): 116-122.)
[11] 林秀梅. 浅析拉格朗日插值法的原理及其应用[J]. 吉林财贸学院学报, 1990, 1(3): 49-53.
Lin Xiumei.Analysis of Lagrange interpolation principle and its application[J]. Journal of Jilin Institute of Finance and Trade, 1990, 1(3): 49-53.

[1]	郭宇飞, 赵康, 海永清. 面向有限元分析的三角网格布尔运算方法[J]. 系统仿真学报, 2022, 34(5): 1003-1014.
[2]	张立峰, 王会忍. 基于卷积神经网络及有限元仿真的电容层析成像图像重建[J]. 系统仿真学报, 2022, 34(4): 712-718.
[3]	徐劲力, 周铮. 基于HoloLens的有限元分析变形结果可视化研究[J]. 系统仿真学报, 2021, 33(1): 109-117.
[4]	孙非, 闫文敏, 张俊斌, 王永娟, 徐诚. 手枪弹入靶参数对软防护人体钝击影响分析[J]. 系统仿真学报, 2021, 33(1): 215-221.
[5]	汪送, 战仁军, 段雄义. 橡皮弹胸部钝击损伤的有限元法评估[J]. 系统仿真学报, 2020, 32(9): 1762-1770.
[6]	汪送, 战仁军. 防暴动能弹胸部钝击有限元模型研究综述[J]. 系统仿真学报, 2020, 32(7): 1220-1231.
[7]	滕琳, 唐堂, 李翘婕, 陈明. 大功率重载荷瞬间动作机构CAE建模与故障仿真[J]. 系统仿真学报, 2020, 32(6): 1136-1144.
[8]	王芹, 马召灿, 李鸿亮, 张林波, 卢本卓. 双极器件LPNP辐照损伤效应的并行有限元数值模拟[J]. 系统仿真学报, 2020, 32(12): 2376-2382.
[9]	张继武, 荣起国. 医用钛合金材料对种植体生物力学行为的影响[J]. 系统仿真学报, 2020, 32(11): 2100-2104.
[10]	邢博豪, 周前祥, 王兴伟, 原悦. 牵引救生过程中人体头颈部损伤的仿真分析[J]. 系统仿真学报, 2019, 31(6): 1208-1215.
[11]	胡效东, 刘宁, 祁祥松, 王建鹏. 基于弹塑性力学的精馏釜结构优化分析[J]. 系统仿真学报, 2019, 31(2): 360-367.
[12]	白海亮, 姜南, 张辽, 付跃文. 飞行模拟器反射镜球壳的设计及有限元分析[J]. 系统仿真学报, 2019, 31(11): 2388-2392.
[13]	黄俊卿, 王团, 李光辉, 范锐. 基于有限元分析的某型装甲装备毁伤仿真[J]. 系统仿真学报, 2018, 30(9): 3327-3332.
[14]	黄海波, 余旭东, 刘金朋, 姚震. 子午线轮胎接地压力分布非对称性研究[J]. 系统仿真学报, 2018, 30(8): 2991-2998.
[15]	王艳, 朱新庆, 胡捷飞, 崔西民. 四辊卷板机连续滚弯成形工艺的数值模拟研究[J]. 系统仿真学报, 2018, 30(5): 1772-1780.

套管在对称载荷下其螺纹牙应力分布计算公式

Stress Distribution Formula of Threads Casing Joint Under Symmetrical Load

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价