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.