North Railway Station. According to Baidu map information, Southwest Petroleum University is the closest to Chengdu North Station, with a distance of 27.9 kilometers. You can take bus No.83, 5 stops, and bus No.650, 23 stops. It only takes 30 minutes. The main campus of Southwest Petroleum University (SWPU) is located in Chengdu, Sichuan Province, which is restricted by the Ministry of Education, Sichuan Province and China Petroleum and Natural Gas Corporation.