[1]李鸿斌,等.超高强度CT120连续管研制及性能研究[J].焊管,2020,43(5):24-29.[doi:10.19291/j.cnki.1001-3938.2020.05.005]
 LI Hongbin,BI Zongyue,et al.Manufacture of Ultra-high Strength Coiled Tubing and  Study on Properties of CT120 Coiled Tubing[J].,2020,43(5):24-29.[doi:10.19291/j.cnki.1001-3938.2020.05.005]
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超高强度CT120连续管研制及性能研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
43
期数:
2020年第5期
页码:
24-29
栏目:
应用与开发
出版日期:
2020-05-28

文章信息/Info

Title:
Manufacture of Ultra-high Strength Coiled Tubing and 
Study on Properties of CT120 Coiled Tubing
文章编号:
10.19291/j.cnki.1001-3938.2020.05.005
作者:
李鸿斌1 2毕宗岳1 2刘 云1 2鲜林云1 2余 晗1 2汪海涛1 2
1. 国家石油天然气管材工程技术研究中心,陕西 宝鸡 721008;
2. 宝鸡石油钢管有限责任公司 钢管研究院,陕西 宝鸡 721008
Author(s):
LI Hongbin1 2 BI Zongyue1 2 LIU Yun1 2 XIAN Linyun1 2 YU Han1 2 WANG Haitao1 2
1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
2. Steel Pipe Research Institute of Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
CT120连续管制造显微组织力学性能
Keywords:
CT120 coiled tubing manufacture microstructure mechanical properties
分类号:
TG113.2
DOI:
10.19291/j.cnki.1001-3938.2020.05.005
文献标志码:
B
摘要:
为满足深层油气及页岩气开发需求,开发了屈服强度高于110 ksi的超高强度连续管产品。分析了超高强度连续管的制造难点,并对研制的Φ50.8 mm×4.44 mm CT120钢级连续管进行了检测分析。结果表明:CT120连续管屈服强度880 MPa,抗拉强度955 MPa,硬度小于328HV,管体焊接质量、塑性均控制较好,组织以多边形铁素体和粒状贝氏体为主,各项性能指标均满足设计要求;同时,管体具有较高的抗内、外压能力和弯曲疲劳寿命,爆破压力达200.2 MPa,挤毁压力达172.2 MPa,疲劳寿命达到192次。通过对CT120连续管综合性能研究,为该产品在油田的推广应用及作业工艺制定提供数据支撑。
Abstract:
In order to meet the needs of deep oil and shale gas development, the ultra-high strength continuous pipe products with yield strength higher than 110 ksi have been developed. The manufacturing difficulties of the ultra-high strength continuous pipe are analyzed, and the test and analysis of Φ 50.8 mm × 4.44 mm CT120 steel continuous pipe are carried out. The results show that the yield strength of CT120 continuous pipe is 880 MPa, the tensile strength is 955 MPa, the hardness is less than 328HV, the welding quality and plasticity of the pipe are well controlled, the structure is mainly polygonal ferrite and granular bainite, and all the performance indexes meet the design requirements. At the same time, the pipe body has high resistance to the internal and external pressure and bending fatigue life. The bursting pressure is up to 200.2 MPa, the collapse pressure is up to 172.2 MPa, and the fatigue life is up to 192 times. Through the research on the comprehensive performance of CT120 continuous pipe, the data is provided for the promotion and application of the product in oil field and the formulation of operation process.

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备注/Memo

备注/Memo:

收稿日期:2020-01-03

基金项目: 国家科技重大专项课题 “大型油气田及煤层气开发”(项目编号201605023-006ZX)。
作者简介:李鸿斌(1984—),硕士,高级工程师,主要从事连续管新产品开发及管材失效分析工作。

更新日期/Last Update: 2020-06-30