The surface engineering of production capacity construction in the southern area of Jiaxian block of Shenmu gas field in Jidong Oilfield is a systematic project that integrates internal gathering and transportation, natural gas processing, and export. As the largest natural gas processing plant in China National Petroleum Corporation with the most complete and complex process flow and the highest degree of localization, the Shenmu Gas Field No. 3 Natural Gas Processing Plant has faced challenges such as large engineering volume, complex working conditions, and tight schedule since its construction. This station is the first 110kV skid substation in the western exploration area of Jidong Oilfield. In order to ensure smooth production, the substation project must be completed quickly.