
Classic Case
Classic Case
May 7, 2022: Southern Zhonggui Pipeline – Three Locations Special-Class Pipeline Nitrogen Replacement Project
In this southern construction project, as per the work schedule arranged by the Chongqing Oil and Gas Transmission Branch of Southwest Pipeline, three Class-I hot work operations along the Zhonggui Pipeline are planned to be carried out consecutively from May 6 to May 10. Our company has been invited to perform nitrogen purging on the pipelines involved in these hot work activities. After multiple on-site inspections and optimization of the proposed plan, our project team initiated the first phase of the operation at 5:40 a.m. on May 6. Remarkably, both designated monitoring points achieved compliance simultaneously within just 3 hours—exactly on schedule. This efficient execution has created a critical window for subsequent project milestones, earning high praise from the client.