【Ten Years of Rapid Development in Chemical Equipment】Record-breaking from 1995 to 2023! ! Single unit on West-East Gas Pipeline Line 4 welds 75 joints per day

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Ten years of rapid development in chemical processing equipment – praise for China’s prosperity and strength. This is just a starting point; more participation will make things even more lively. HaiChuan becomes even better with you all; we welcome everyone to join in the forum discussions. Happy May Day! A safe and secure Red May ********************************************* On April 19, 2023, Jianghan Oil Construction Company of the Petroleum Engineering Construction Corporation carried out welding work on 75 joints per unit per day during the construction of Project West-East Gas Pipeline IV, setting a new record for the construction of long-distance pipelines with a diameter of 1,219 millimeters and a wall thickness of 22 millimeters in China. On that day, the company’s construction team welded 384 joints per day, setting a new record for the highest daily welding volume along the entire line, thereby demonstrating the brand image and construction capabilities of the petrochemical enterprise.   As a key project under the **14th Five-Year Plan for oil and gas development**, the West-East Gas Pipeline Line 4 is another major energy strategic corridor that connects Central Asia with China, following the West-East Gas Pipeline Lines 1, 2, and 3. Once completed, this project will hold great strategic significance for China to make full use of international oil and gas resources and ensure energy security in an open environment.   The company was responsible for constructing Section 3 of Project West-to-East Gas Pipeline Line 4, which is 243 kilometers in length. Since work began in September 2022, six fully automated welding units have been deployed for the construction tasks. In project construction, the company coordinates all aspects of the work, including external collaboration for problem-solving, route optimization, and equipment management, to ensure a fully mechanized and streamlined working environment for the fully automatic welding units. While ensuring quality and safety, each unit organizes the processes of pipe layout, alignment, welding, etc. in a scientific manner to achieve seamless coordination, thereby continuously improving operational efficiency. To date, a total of 173 kilometers have been welded in this section, with the first-pass qualification rate remaining above 98% throughout.