[1]周声结,王文龙,邓彩艳,等.基于BS 7910复合管海底管道对接焊缝ECA评估研究[J].焊管,2013,36(12):28-31.[doi:1001-3938(2013)12-0028-04]
 ZHOU Shengjie,WANG Wenlong,DENG Caiyan,et al.Engineering Critical Assessment(ECA) of Composite Pipe Submarine Pipeline Butt Weld Based on BS 7910[J].,2013,36(12):28-31.[doi:1001-3938(2013)12-0028-04]
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基于BS 7910复合管海底管道对接焊缝
ECA评估研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第12期
页码:
28-31
栏目:
应用与开发
出版日期:
2013-12-28

文章信息/Info

Title:
Engineering Critical Assessment(ECA) of Composite Pipe Submarine
Pipeline Butt Weld Based on BS 7910
文章编号:
1001-3938(2013)12-0028-04
作者:
周声结1王文龙1邓彩艳23王东坡23
(1. 中海石油(中国)有限公司湛江分公司,广东 湛江 524057;
2. 天津大学 材料科学与工程学院,天津 300072;
3. 天津市现代连接技术重点实验室,天津 300072)
Author(s):
ZHOU Shengjie1WANG Wenlong1DENG Caiyan23WANG Dongpo23
(1. CNOOC(China) Co.,Ltd., Zhanjiang branch,Zhanjiang 524057,Guangdong,China;
2. School of Materials Science and Engineering,Tianjin 300072,China;
3. Tianjin Key Laboratory of Advanced Joining Technology,Tianjin 300072,China)
关键词:
焊接复合管海底管道BS 7910工程临界评估(ECA)
Keywords:
weldingBS7910submarine composite pipelineEngineering Critical Assessment(ECA)
分类号:
TE973.3
DOI:
1001-3938(2013)12-0028-04
文献标志码:
A
摘要:
依据英国标准BS 7910对含缺陷复合管海底管道对接接头进行了工程临界评估(ECA)。根据管体与焊缝拉伸试验结果确定评定曲线;按照DNV-OS-F101标准对管道取样,进行焊缝和HAZ的CTOD试验,选取最低值作为评定断裂韧性值;在评定计算中分别考虑了静态应力、循环应力、残余应力和应力集中等影响,给出了在敷设条件下考虑疲劳和不考虑疲劳时表面裂纹的极限尺寸。评估结果较DNV-OS-F101规定尺寸宽松,可见复合管含缺陷焊接接头安全裕度很高,从而为海底管道敷设过程中的焊接缺陷评估和验收提供了经验和依据。
Abstract:
According to the procedures suggested by BS7910,the Engineering Critical Assessment(ECA) was performed for the butt weld of submarine composite pipe containing defects. In this assessment,the FAD curve was determined by tensile tests results of the pipe body and weld; according to the DNV-OS-F101 standard sampling the pipes,the CTOD tests were performed on the weld and HAZ,and selected the lowest as the fracture toughness value; taking into account the effects of static stress,cyclic stress,residual stress and stress concentration,the extreme dimension of surface cracks under laying condition was provided,in addition to the consideration of the fatigue status or without fatigue status. Moreover,the results of ECA are greater than the size specified in DNV-OS-F101,thus it can be seen that the welded joint containing defects is with high safety margin,consequently,it provides experience and basis for the defect assessment and acceptance during the process of submarine pipeline laying in the future work.

参考文献/References:

[1] 刘晓昀. 我国海底管道及焊接技术[J].中国造船,2003,44(S):65-70.
[2] 刘永和. 海底管道腐蚀防护系统的完整性评价方法的研究[J].化学工程师,2013(04):58-60.
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备注/Memo

备注/Memo:
收稿日期:2013-06-17
作者简介:周声结(1963—),男,湖南人,高级工程师,长期从事海底油气管线建造与敷设工作。
更新日期/Last Update: