Progress of welding technology from perspective of development of oil and gas pipeline construction

The third-generation pipeline construction technology represented by automatic welding has been fully applied in the Sino-Russian East Route natural gas pipeline project and other national key oil and gas long-distance pipeline projects. Through combing quality management experience of automatic welding in pipeline engineering in recent years, focusing on five aspects of “Man, Machine, Material, Method and Environment”, quality control measures of girth weld were systematically summarized from aspects of welding procedure qualification, qualified welder control, welding material management, welding breaking-in control, joint welding, welding data acquisition and crater analysis. Combined with “Made in China 2025”, future development of oil and gas pipeline construction was prospected, which provided reference for the development and application of new welding technology and quality control.