Review of China's oil and gas pipeline integrity management in the past 20 years and development suggestions

In recent years, pipeline integrity management has gradually been a crucial means to prevent accidents and pre-control in the global pipeline industry. The development process of China's oil and gas pipeline integrity management in the past 20 years was expounded in this paper. During this process, "three ones" technology clusters have been formed, i.e. one set of technology system, one set of standard system and one set of system support platform, involving many fields such as pipeline routes, pipeline transportation stations, gas storage and system platforms. In terms of pipeline route integrity, the technical cluster containing ontological security, risk assessment and control, transmission medium security, emergency repair and maintenance and emergency support has been formed. For station integrity management, the technical cluster including station process facility detection and evaluation, compressor unit diagnosis evaluation, quantitative risk evaluation, safety level evaluation, facility integrity evaluation, etc. has been developed. As for gas storage, the technical cluster covering risk control, construction and safe operation of gas storage has been formed. With regard to integrity system platform, the pipeline emergency decision-making GIS system based on business multi-source data has been formed, and the intelligent pipeline network has been initially built up in China–Russia Eastern Gas Pipeline. Based on the above, the current problems and future development trend of China's pipeline integrity management were analyzed and it was proposed that the development goal of China's pipeline integrity management should be based on the integrity risk control of the intelligent pipeline network in the full life cycle, while the new development direction of China's pipeline integrity technology should cover intelligent data acquisition, accurate risk identification, system adaptive feedback, high-precision integrity detection and evaluation, etc.