[1]徐帮才,陈 龙,周志宏,等.连续油管斜接焊缝弯曲过程应变分析[J].焊管,2019,42(4):43-46.[doi:10.19291/j.cnki.1001-3938.2019.4.008]
 XU Bangcai,CHEN Long,ZHOU Zhihong,et al.Strain Analysis of Inclined Weld Bending of Coiled Tubing[J].,2019,42(4):43-46.[doi:10.19291/j.cnki.1001-3938.2019.4.008]
点击复制

连续油管斜接焊缝弯曲过程应变分析()
分享到:

《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第4期
页码:
43-46
栏目:
应用与开发
出版日期:
2019-04-28

文章信息/Info

Title:
Strain Analysis of Inclined Weld Bending of Coiled Tubing
文章编号:
10.19291/j.cnki.1001-3938.2019.4.008
作者:
徐帮才1陈 龙1周志宏2袁涛勇2
1. 中石化江汉石油工程页岩气开采技术服务公司, 武汉430000;
2. 长江大学 机械工程学院, 湖北 荆州 434000
Author(s):
XU Bangcai1 CHEN Long1 ZHOU Zhihong2 YUAN Taoyong2
1. Shale Gas Production Service, Sinopec Jianghan Oilfield Service Corporation, Wuhan 430000, China;
2. School of Mechanical Engineering, Yangtze University, Jingzhou 434000, Hubei, China
关键词:
连续油管斜接焊缝有限元分析材料强度疲劳
Keywords:
coiled tubing inclined weld finite element material strength fatigue
分类号:
TG113.255
DOI:
10.19291/j.cnki.1001-3938.2019.4.008
文献标志码:
B
摘要:
针对连续油管使用过程中出现的对接斜焊缝失效问题,采用ANSYS有限元分析软件建立了连续油管弯曲-矫直几何模型,对HS110钢级Φ50.8 mm×4.78 mm连续油管斜接焊缝的疲劳应变强度进行了分析。分析结果显示,连续油管斜接焊缝热影响区在弯曲状态下的等效应变比本体材料高30%左右;零内压弯曲情况下,随着循环次数的增加,弯曲后等效应变和矫直后残余应变在弯曲内侧内壁上增长最快;带压作业情况下,当内压超过15 MPa后,其残余应变迅速增加。研究表明,连续油管在弯曲作业过程中,斜接焊缝热影响区的强度有较大程度下降,连续油管的累积应变在弯曲内侧内壁处累积最快,此处易发生疲劳失效。
Abstract:
Aiming at the inclined butt weld failure during the use of coiled tubing, HS110 Φ50.8 mm ×4.78 mm coiled tubing inclined weld fatigue strength was analyzed by using ANSYS finite element analysis software to establish coiled tubing bending-straightening geometry model. The analysis results showed that the equivalent strain of the heat affected zone(HAZ) of the inclined weld of coiled tubing in the bending state was about 30% higher than that of the body material; with zero internal pressure bending, the equivalent strain after bending and residual strain after straightening increased most rapidly in bending the inner wall as the number of cycles increased; with pressure, the residual strain increased rapidly when the internal pressure exceeded 15 MPa. The research indicated that during the process of coiled tubing bending, the strength of inclined weld HAZ decreased greatly, the accumulated strain of coiled tubing accumulated most rapidly at the bending inner wall where the fatigue failure was likely to occur.

参考文献/References:

[1] 李霄, 石凯, 王洪铎, 等. CT80连续油管TIG焊对接接头热循环过程研究[J]. 热加工工艺, 2011, 40(9): 168-170.
[2] 刘彦明, 石凯. 连续油管管-管对接焊概述[J]. 热加工工艺, 2011, 40(19): 145-147.
[3] 徐琳, 严仁君. T形焊接接头残余应力与变形的三维数值模拟[J]. 江苏船舶, 2007, 24(1): 5-8, 45.
[4] 温庆伦, 李霄, 姬二佳. 连续油管对接焊接残余应力场分析[J]. 焊管, 2016, 39(4): 5-8.
[5] 钟守炎, 刘明尧. 连续油管在内压作用下直径增长模型的建立[J]. 石油机械, 1999, 27(2): 38-41, 3-4.
[6] TIPTON S M, Achilles 4.0 CT Fatigue Life Prediction Algorithm[EB/OL]. [2018-04-15].http://ctes.nov.com/Documentation/technotes/Tech%20Note%20Achilles%2040.pdf.
[7] 周志宏,袁涛勇. 加卸载内压对卷绕后连续管疲劳寿命的影响[J]. 石油机械, 2018, 46(12): 104-110.
[8] 何春生. 连续油管低周疲劳寿命预测及屈曲分析方法研究[D]. 大庆: 东北石油大学, 2014.
[9] 李银银. 连续管卷绕矫直分析及疲劳研究[D]. 荆州:长江大学, 2016.
[10] 李银银, 周志宏, 臧传贞,等. 连续管卷绕破坏分析[J]. 石油机械, 2015, 43(10): 81-85.
[11] TIPTON S M . Multiaxial Plasticity and Fatigue Life Prediction in Coiled Tubing[J]. ASTM Special Technical Publication, 1996(1): 283-304.
[12] 李磊, 王鹏, 申昭熙,等. 连续管在内压和循环弯曲作用下的试验研究[J]. 石油机械, 2011, 39(1): 5-7, 12, 95.

相似文献/References:

[1]周建宏,石 凯,卢雪峰,等.国产CT80级连续油管用钢带对接焊焊接方法探讨[J].焊管,2009,32(5):25.[doi:1001-3938(2009)05-0025-03]
 ZHOU Jian-hong,SHI Kai,LU Xue-feng,et al.Discussion on Strip Butt-welding Method of CT80 Grade Coiled Tubing Made in China[J].,2009,32(4):25.[doi:1001-3938(2009)05-0025-03]
[2]王文武,李继红,赵鹏康,等.连续油管环焊温度场及残余应力场数值分析[J].焊管,2011,34(3):18.
[3]秦跃平,张佃平.连续油管在油田洗井作业中的应用[J].焊管,2011,34(9):53.
[4]梁根选,金时麟 编译.连续油管下井作业技术与设备[J].焊管,2011,34(10):72.[doi:1001-3938(2011)10-0072-06]
 Edited and Translated by LIANG Gen-xuan,JIN Shi-lin.Coiled Tubing Technology and Equipment[J].,2011,34(4):72.[doi:1001-3938(2011)10-0072-06]
[5]李 琳,李继红,余 晗,等.连续油管TIG焊焊接接头最薄弱区工艺-性能神经网络预测模型[J].焊管,2012,35(1):5.[doi:1001-3938(2012)01-0005-03]
 LI Lin,LI Ji-hong,YU Han,et al.The Neural Network Prediction Model of Process-property in the Weakest Area of Coiled Tubing TIG Welded Joint[J].,2012,35(4):5.[doi:1001-3938(2012)01-0005-03]
[6]罗 鹏,秦跃平,陈 锐,等.体积压裂与速度管柱排液复合技术的应用[J].焊管,2012,35(1):29.[doi:1001-3938(2012)01-0029-04]
 LUO Peng,QIN Yue-ping,CHEN Rui,et al.Application of Volume Fracturing and Velocity String Discharging Fluid Composite Technology[J].,2012,35(4):29.[doi:1001-3938(2012)01-0029-04]
[7]李继红,李 琳,赵鹏康,等.连续油管直缝高频焊热影响区最薄弱区硬度的神经网络预测[J].焊管,2012,35(7):5.[doi:1001-3938(2012)07-0005-04]
 LI Ji-hong,LI Lin,ZHAO Peng-kang,et al.The Neural Network Prediction of Hardness in the Weakest Area of Coiled Tubing in HFW HAZ[J].,2012,35(4):5.[doi:1001-3938(2012)07-0005-04]
[8]毕宗岳.连续油管及其应用技术进展[J].焊管,2012,35(9):5.[doi:1001-3938(2012)09-0005-08]
 BI Zongyue.Coiled Tubing (CT) and Its Application Technology Development[J].,2012,35(4):5.[doi:1001-3938(2012)09-0005-08]
[9]冀亚锋,张 宏,毕宗岳,等.连续油管材料临界CTOD值计算方法研究[J].焊管,2012,35(11):5.[doi:001-3938(2012)11-0005-04]
 JI Yafeng,ZHANG Hong,BI Zongyue,et al.Research on a New Method for Calculating Critical CTOD Value of Coiled Tubing Material[J].,2012,35(4):5.[doi:001-3938(2012)11-0005-04]
[10]王新强,鲁明春,包俊清,等.连续油管氮气泡沫冲砂工艺在涩北气田的成功应用[J].焊管,2013,36(5):38.[doi:1001-3938(2013)05-0038-03]
 WANG Xinqiang,LU Mingchun,BAO Junqing,et al.Successful Application of Coiled Tubing Nitrogen Foam Sand Flushing Technology in China Sebei Gas Field[J].,2013,36(4):38.[doi:1001-3938(2013)05-0038-03]

备注/Memo

备注/Memo:
收稿日期:2018-09-25
基金项目: 国家科技重大专项课题“深层页岩气开发关键装备与工具应用”(项目编号2016ZX05038-006)。
作者简介:徐帮才(1984—),本科,工程师,目前主要从事于压裂、试(油)气工艺技术研究以及连续油管井下工具、油气井完井工具的研发工作。
更新日期/Last Update: 2019-05-10