8月26日，国家石油天然气发展“十五五”规划项目黑河—大庆天然气管道工程在黑龙江省孙吴县正式开工，建成后将进一步巩固国家油气战略通道，为保障国家能源安全、推动新时代东北全面振兴注入强劲动力。

On August 26th, the "15-16" National Petroleum and Natural Gas Development Project - the Heihe-Daqing Natural Gas Pipeline Project in Heilongjiang Province officially started construction in Sunwu County. Once completed, it will further strengthen the national oil and gas strategic transportation route, and provide strong impetus for ensuring national energy security and promoting the comprehensive revitalization of Northeast China in the new era.

黑河—大庆天然气管道全长578.3公里，途经黑龙江省黑河市、齐齐哈尔市、绥化市、大庆市4市10县（区），设计压力12兆帕。项目与规划建设的大庆—长岭天然气管道联通，投产后与“北气南下”能源大通道联合运行，形成“北气南下”双通道格局，推动“北气南下”系统年输气能力由380亿立方米提升至480亿立方米，有效提升东北能源通道资源调配与输送能力，完善东北天然气管网布局，带动沿线清洁能源利用和产业升级。

The Heihe-Daqing natural gas pipeline is 578.3 kilometers long and passes through four cities and ten counties (districts) in Heilongjiang Province, namely Heihe City, Qiqihar City, Suizhou City and Daqing City. The designed pressure is 12 megapascals. This project is connected with the planned Daqing-Changling natural gas pipeline. After being put into operation, it will jointly operate with the "Northward Gas Southward" energy transportation channel, forming a dual-channel pattern for "Northward Gas Southward" transportation. This will increase the annual gas transmission capacity from 38 billion cubic meters to 48 billion cubic meters of the "Northward Gas Southward" system, effectively enhancing the resource allocation and transportation capacity of the energy channels in Northeast China, improving the layout of the natural gas pipeline network in Northeast China, and promoting the utilization of clean energy and industrial upgrading along the route.

工程推行智能化、标准化建设，推广应用18米加长管，减少环焊缝数量约30%；全线大口径管道自动焊比例超96%，环焊缝采用全自动超声波与数字射线检测相结合的“双百”检验标准，提升管道本质安全水平。

The project has implemented intelligent and standardized construction, and has promoted the application of 18-meter extended pipes, reducing the number of circumferential welds by approximately 30%. The proportion of automatic welding for large-diameter pipelines across the entire line exceeds 96%. The circumferential welds adopt a "double hundred" inspection standard combining automatic ultrasonic and digital radiographic testing, enhancing the inherent safety level of the pipelines.

国家管网集团将生态环保贯穿管道设计建设全过程，全线河流大中型穿越均采用定向钻等非开挖方式。通过缩减作业带宽度等针对性措施穿越黑土地，实行表土剥离、苫盖、翻耕、施肥等系统性保护措施，实现工程建设和生态环境保护协调发展。

The National Pipeline Network Group integrates ecological and environmental protection throughout the entire process of pipeline design and construction. For large and medium-sized river crossings along the entire line, non-intrusive methods such as directional drilling are adopted. By taking targeted measures such as reducing the width of the operation area, crossing the black soil area, implementing systematic protection measures such as soil stripping, covering, plowing, and fertilization, the coordination between engineering construction and ecological environmental protection is achieved.