[1]唐国平,段庆全,余 晗,等.基于直径参数的连续油管低周疲劳寿命研究[J].焊管,2016,39(8):7-10.[doi:10.19291/j.cnki.1001-3938.2016.08.002]
 TANG Guoping,DUAN Qingquan,YU Han,et al.Study of the Low-cycle Fatigue Life of the Coiled Tubing Based on Diameter Parameter[J].,2016,39(8):7-10.[doi:10.19291/j.cnki.1001-3938.2016.08.002]
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基于直径参数的连续油管低周疲劳寿命研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第8期
页码:
7-10
栏目:
试验与研究
出版日期:
2016-08-28

文章信息/Info

Title:
Study of the Low-cycle Fatigue Life of the Coiled Tubing Based on Diameter Parameter
文章编号:
10.19291/j.cnki.1001-3938.2016.08.002
作者:
唐国平1段庆全1余 晗2 3鲜林云2 3李博锋2 3
1. 中国石油大学(北京) 机械与储运工程学院, 北京 102249;
2. 国家石油天然气管材工程技术研究中心, 陕西 宝鸡 721008;
3. 宝鸡石油钢管有限责任公司 钢管研究院, 陕西 宝鸡 721008
Author(s):
TANG Guoping1 DUAN Qingquan1 YU Han2 3 XIAN Linyun2 3 Li Bofeng2 3
1. College of Mechanical and Transportation Engineering, China University of Petroleum(Beijing),Beijing 102249,China;
2. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
3. Steel Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
连续油管直径疲劳全尺寸疲劳试验
Keywords:
coiled tubing diameter fatigue full-scale fatigue experiment
分类号:
TG113.255
DOI:
10.19291/j.cnki.1001-3938.2016.08.002
文献标志码:
A
摘要:
为了明确连续油管在弯曲和内压条件下的低周疲劳寿命与直径参数的关系,使用连续油管全尺寸疲劳试验机,在34.47 MPa内压、弯模半径2 286 mm下对国产高强度CT90连续油管进行了疲劳寿命试验。试验结果表明,高强度大直径国产CT90连续油管失效时管径胀大率可达15.2%;研究了连续油管失效位置分布规律,揭示了连续油管直径随循环次数增加的胀大规律,并建立了一个基于直径参数的疲劳寿命预测模型,可以较好地计算连续油管工作寿命,为预判连续油管的疲劳损伤程度及断裂失效位置提供理论指导。
Abstract:
In order to identify the relationship of coiled tubing(CT) low-cycle fatigue life and diameter parameter under bending and internal pressure loads. In this paper, based on the full-scale fatigue testing machine, under internal pressure of 34.47 MPa and radius of the stamper with 2 286 mm on domestic high strength CT90 fatigue life test was carried out. The results showed that the large diameter high strength domestic CT90 expands when diameter CT failure rate is 15.2%. In this paper, it analyzed CT failure location distribution and find out the diameter CT the number of cycles increased and swell of the rules. A reasonable fatigue life prediction model was established based on diameter parameter, can better calculate CT fatigue life, and pre-judgment of the CT fatigue damage and fracture failure location to provide theoretical guidance.

参考文献/References:

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备注/Memo

备注/Memo:
基收稿日期: 2016-03-30
金项目:国家重大科技专项项目“36—煤层气钻井工程技术及装备研制(二期)”(项目号2011ZX05036)。
作者简介: 唐国平(1992—),男,在读硕士,主要从事油气生产装备失效分析与完整性管理等研究工作。
更新日期/Last Update: