中俄东线黑龙江穿越段管材关键性能指标对比与确定

中俄东线天然气管道过境段控制性工程中黑龙江穿越段穿越中国、俄罗斯两国国界,所用直缝埋弧焊钢管和感应加热弯管由俄罗斯供货,但中俄双方会议谈判要求管材关键性能指标执行中俄双方的最严格要求。为了合理确定黑龙江穿越段管材性能指标,保障管道安全,对比分析了中国和俄罗斯管材标准,对直缝埋弧焊钢管和感应加热弯管的关键性能指标进行了分析。与中国标准相比,俄罗斯标准更注重钢管的低屈强比、高断裂延展性以及苛刻的低温韧性,并与施工现场联系密切,比中国标准更严格。结合对比结论、工程实际,最终确定黑龙江穿越段管材性能指标执行俄罗斯标准要求。(图2,表8,参23)

Comparison and determination of the key pipe performance indicators for Heilongjiang crossing section of China-Russia Eastern Gas Pipeline

Heilongjiang crossing section in the dominant engineering project of the transit section of China-Russia Eastern Gas Pipeline crosses the border between China and Russia.Its longitudinal submerged arc welded(LSAW)pipes and induction bends are supplied by Russia,but according to the negotiation results of two sides,the key pipe performance indicators shall comply with the stricter requirements of China or Russia.In order to reasonably determine the pipe performance indicators of Heilongjiang crossing section and ensure the safety of the pipeline,this paper comparatively analyzed Chinese and Russian pipe standards and investigated the key performance indicators of LSAW pipe and induction bend.It is shown that compared with Chinese standards,Russian standards are stricter,focus more on low yield ratio,high fracture ductility and harsh low-temperature toughness of pipe and have close relation with construction sites.Combined with comparison results and actual project situations,it is finally determined to implement Russian standards in the pipe performance indicators of Heilongjiang crossing section.