The first bid section of the eastern part of the Sichuan Gas to East China Pipeline Project set a new record, with 30 welds completed in a single day across the entire pipeline.

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Recently, the **pipeline construction project – Section 1 of the East Branch of the Sichuan Gas to East China Pipeline Project**, which is being built by Zhongyuan Oilfield Construction Company, set a new record for the number of welds completed in a single day on this entire pipeline, with 30 welds done in one day. The section contracted by this company is 380.82 kilometers long; to date, 53.75 kilometers have been welded, giving it the leading welding progress rate. Taking the \"5-vs-5\" labor competition as an opportunity, they organized various special competitions such as those aimed at achieving high standards in welding operations and competitions to foster excellence within each welding team. By implementing a system of daily reports, monthly comparisons, and quarterly evaluations, they stimulated the enthusiasm of the teams and created a positive atmosphere of competition, learning, and striving for improvement ； A grid-based system for assigning responsibilities is implemented to ensure seamless progression of various construction steps. Fully automated welding processes using flexible internal welders and dual-gun external welders are adopted, along with optimized welding parameters, thereby significantly improving construction efficiency and quality.