驯服冻土、抵御断裂、洞察缺陷 能源大动脉披上“科技护甲”

Core Insights - The Northeast Energy Strategic Corridor in China has successfully transported over 330 million tons of crude oil and more than 100 billion cubic meters of natural gas, contributing significantly to the economic and social development of the region [1] - The corridor has achieved technological innovations, including the first successful crossing of the unstable permafrost zone in Eurasia and the complete localization of key equipment and control systems for oil and gas pipelines [1] Group 1: Pipeline Construction Challenges - The primary challenge in pipeline construction is the unique discontinuous and island-like permafrost, which can cause instability in the pipeline due to expansion in cold weather and subsidence in warm weather [2][3] - To address this, a dynamic control method for permafrost has been developed, allowing for the stable transportation of crude oil by predicting permafrost evolution and its impact on pipelines [3][4] Group 2: Pipeline Integrity and Safety - The "North Gas Southward" energy corridor, a significant project for natural gas transportation, has a daily gas transmission capacity exceeding 110 million cubic meters and an annual capacity of 38 billion cubic meters, sufficient for 130 million urban households [5][6] - A new crack resistance prediction model has been developed specifically for large-diameter, high-strength pipelines, incorporating soil type, burial depth, and pipe diameter to ensure safety during energy transportation [6][7] Group 3: Intelligent Detection Technologies - The research team has created a high-resolution detection technology for large-diameter pipelines, utilizing a robot equipped with sensors to detect micro-defects and additional stress without disrupting pipeline operations [8][9] - This robotic system can collect approximately 2-3 GB of data per minute while traversing the pipeline, allowing for timely identification of potential defects or stress changes [9]