Well fluids flow from the oil tree into surface facilities and need to be transported to the central processing station for deep processing through the gathering system. The gathering system mainly includes well site facilities, single well pipelines, metering stations, gathering trunk lines, oil transfer stations, and transfer pipelines, etc. The main facilities vary depending on the station layout. According to the number of station levels from the oil wellhead to the central processing station, the station layout can be divided into first-level, second-level, and third-level layouts.