油气田异种金属焊接接头硫化物应力腐蚀开裂研究进展
Research Progress on Sulfide Stress Corrosion Cracking of Dissimilar Weld Joints in Oil and Gas Fields
刘久云 1董立谨 1张言 2王勤英 1刘丽1
作者信息
- 1. 西南石油大学新能源与材料学院 成都 610500
- 2. 西南石油大学新能源与材料学院 成都 610500;北京科技大学腐蚀与防护中心 北京 100083
- 折叠
摘要
针对油气田异种金属焊接接头硫化物应力腐蚀开裂(SSCC)行为,概述了焊接接头的种类及微观组织结构,并讨论了异种金属焊接接头的SSCC机理,重点综述了微观组织结构、温度、CO2、应力及焊后热处理等因素对异种金属焊接接头SSCC的影响规律,最后对油气田异种金属焊接接头SSCC的未来研究方向提出了建议与展望.
Abstract
Dissimilar metal weld joints are widely used in oil and gas fields.However,the environ-mentally assisted cracking is easy to occur in and around the fusion region of weld joints,which may seri-ously affect the safety of oil and gas transportation and cause huge economic losses.Therefore,it is nec-essary to deeply study the sulfide stress corrosion cracking(SSCC)behavior of dissimilar metal weld joints in acidic oil and gas environments.In this paper,the research progress on SSCC of dissimilar metal weld joints in oil and gas fields were summarized.Firstly,the types and microstructure of the weld joints are introduced.Secondly,the mechanism of the SSCC of weld joints is discussed briefly.The effect of mi-crostructure of dissimilar metal welded joints,temperature,CO2 partial pressure,applied stress and post-welding heat treatment on the SSCC of dissimilar metal welded joints were reviewed.In the end,the re-search progress of the SSCC of dissimilar metal welded joint in oil and gas fields in recent decades is re-viewed,and the future research direction is prospected.
关键词
异种金属焊接接头/微观组织/硫化物应力腐蚀开裂Key words
dissimilar metal weld joint/microstructure/sulfide stress corrosion cracking(SSCC)引用本文复制引用
出版年
2024
NETL
NSTL
万方数据